Santa Fe Institute Events Wiki - User contributions [en]

File:HillNick.JPG

2012-06-27T01:40:06Z

Dwu:

Complex Systems Summer School 2012-Photos

2012-06-27T01:37:48Z

Dwu:

{{Complex Systems Summer School 2012}}

==fossiliferous trip==

Feel free to share links to your photos here.

[http://www.flickr.com/photos/57132973@N07/7381727052/in/photostream/lightbox/ Tom tries to cut in]

[http://www.flickr.com/photos/57132973@N07/7381727234/in/photostream/lightbox/ Tom is rebuffed]

A photo of the transit of Venus across the Sun: [[Media:Venus-transit-2.jpg]]

[http://www.dropbox.com/gallery/1694302/1/CSSS2012?h=0d4e88 Some pictures]

[http://www.flickr.com/photos/sepehrehsani/7350419208/ Transit of Venus 2012]

[http://www.flickr.com/photos/sepehrehsani/7165200933/ Dr. Hübler's wave chaos experiment]

PHOTOS by Sanith

[https://plus.google.com/photos/115406882267732059257/albums/5757705148934455361?authkey=CMrF3aSQt-3pVQ Trip to Mars (aka Kasha-Katuwe Tent Rocks)]

[https://plus.google.com/photos/115406882267732059257/albums/5755568736830137233?authkey=CKGi15SL_O_LMg Taos ]

[https://plus.google.com/photos/115406882267732059257/albums/5754491294229358321?authkey=CNzp1fLU2o-B2gE SFI ]

[https://www.dropbox.com/sh/twbymjcgkgqf7do/BFwDl5OyHv Friederike's pictures]

more pictures [https://www.dropbox.com/sh/u162yq7vyhfzm4e/uFTIcqdWyw]

Complex Systems Summer School 2012-Blog

2012-06-25T15:35:51Z

Dwu:

{{Complex Systems Summer School 2012}}

Use this page as an informal forum to share your opinion and discuss anything at CSSS'12.

Students are encouraged to share their observations, insights, and opinions about daily lecture content as well as extracurricular activities.

Post your own links to notes, interesting articles, and anything else you think might contribute to the program.

== werner herzog's letter to his cleaning lady ==

can someone get georg georg to read this aloud?
http://www.sabotagetimes.com/tv-film/werner-herzogs-note-to-his-cleaning-lady/

== On the physicists' approach to other disciplines ==

http://www.smbc-comics.com/comics/20120321.gif

== Experiment Sign-up ==

http://tuvalu.santafe.edu/events/workshops/index.php/Experiment_sign-up

== Can one get a chaotic map with two disco balls? ==

And, if so, isn't it practically our duty to do so?

(There's a disco ball in the lecture hall.)

== Schooling interactions with non-square boundary ==
The Monterey Bay Aquarium has an [http://www.youtube.com/watch?v=xZKxfvi9h0c [anchovy tank]] shaped like two nested sections of cones (you stand inside it). Boid-like behavior is pretty easy to see in the fish, particularly because the shape of the tank interferes with the school. I couldn't decide if the tank was actually inducing turbulence in the fish.

== Dynamical Systems: R and Python ==
I wrote some Python code for simulating deterministic dynamical systems and used it to play around with the Logistic map from yesterday's lectures. The Python class I wrote for simulating generic dynamical systems (admittedly only those with a single state variable!) can be found [https://sites.google.com/site/beyondmicrofoundationscoderepo/home/python/dynamics here] (I would have posted to the code to the wiki directly but apparently one cannot upload .py files). I have also written a [http://beyondmicrofoundations.blogspot.com/2012/06/monday-4-june-2012-at-2012-csss.html blog] post demonstrating some of the functionality of the Python code.

Also, there are several R packages that seem to implement the algorithms from the TISEAN program that we were introduced to yesterday. The packages are [http://cran.r-project.org/web/packages/RTisean/index.html RTisean], [http://cran.r-project.org/web/packages/tseriesChaos/index.html tseriesChaos], and [http://cran.r-project.org/web/packages/tsDyn/index.html tsDyn] and can be found on CRAN.

Enjoy,

D. Pugh

PS: I am very much a newbie to Python, and any suggestions on improving my coding are much appreciated!

I have written another blog [http://beyondmicrofoundations.blogspot.com/2012/06/5-6-june-2012-at-2012-csss.html post] and some more Python code for implementing parts of the TISEAN labs that we have been assigned. Code can be found here [https://sites.google.com/site/beyondmicrofoundationscoderepo/home/python/dynamics here]. Eventually, the code will contain solutions to the all of the labs and homework.

== Python wrapper for TISEAN ==

Thanks for sharing your python code David.

Incidentally there is also a Python wrapper for TISEAN available
[http://www.stud.fernuni-hagen.de/q4576411/andreas_2/computer/projekte/tisean.html here]. Not sure how good it is, but might be worth checking out.

Sanith

Complex Systems Summer School 2012-After Hours

2012-06-22T21:06:58Z

Dwu: /* Fossils and Hot Springs */

{{Complex Systems Summer School 2012}}

Use this space to organize your own after hours activities.

==Fossils and Hot Springs==

Hi, we are planning to look for fossils in the surroundings of Mora (about one hour drive from SF) tomorrow. We expect to find trilobites, maybe also ammonoids and other stuff. On the way back we'd like to stop at some hot spring resort.
Departure tomorrow saturday, at about 9:30am from the parking circle. The drivers may have to gather earlier...

If you are interested, please let us know asap so that we can organize the cars.

1. Nick G

2. Sarah

3. Dan

4. Nick A.

Your Paleo-team

==Rodeo de Santa Fe==

We are planning to head to the [http://rodeodesantafe.org/ Rodeo] today (June 21) at 6:00p.m. please meet drivers in the parking circle and post your car if you can drive:

Car 1: Juniper's Car 

1. Katrien

2. Nick A.

3. Xue

4. Mikkel

Car 1: JP's Car 

1. Matteo

2. Avril K.

3. Laurent

4. Marco

Car 1: Sander's Car 

1. Georg G.

2. Ben

3. Vanessa

4. Daniel S

Car 1: Joanne's Car 

1. Charlie

2.

3.

'''People who still need rides'''

1.

==Trip to Taos and alpaca farm==
I am planning to rent a car to visit Taos and a alpaca farm this saturday June 23.
The alpaca farm in my plan is Victory Ranch. http://victoryranch.com/
The car should be able to carry 5 people and let's share the cost.
1. Jianfeng Xu

2. Xin lu

3. Si Tang

4.

5.

==Trip to a museum==
On weekend (Saturday?) I'm planning to visit the Georgia O'Keeffe Museum; after that I'm going to see some more of Santa Fe (no plan yet -- waiting for proposals). Anyone interested?
Cheers,
Piotr

==Road Trip to Boulder, Colorado==

From Gareth: Hi all, I'm planning on making a trip up to Boulder, CO for the weekend. It's about a 6 1/2 hr drive from Santa Fe and I'll be renting a car. My main reason for the trip is to see a friend of mine so you might have to sort your own accommodation (camping/youth hostel/hotel). We're planning on a bit of hiking nearby. The plan is to leave straight from class on Friday evening and arrive back in Santa Fe on Sunday eve. If you're interested in splitting petrol and rental fee and joining me for some Springsteen singalongs then sign up:

1.

2.

3.

4.

==Some Banjo fun out on the town==

My brother will be having a concert this Saturday June 16 at the Second Street Brewery (original location) from 6-9p.m. I will be at the parking circle at 6p.m. For those who do not sign up for a car don't forget Friday and Saturday $5 cabs.

[http://www.secondstreetbrewery.com/2012/05/todd-the-fox-9/ Todd and the Fox Venue Details]

[http://www.toddandthefox.com/fr_home.cfm To hear their music]

If anyone would like to join:

Car 1: Juniper's Car 

1. Katrien (not sure if we'll be back from the lake trip by 6pm. Somebody can take my place if they want.) back up: Georg Weber

2. Marque

3. Sarah

4. Marco

==Dancing==

Swing dancing on Monday 18th June.
Lessons from 7 to 8 P.M.
Dancing from 8 on wards.
The cost is $8 including the lesson and dancing (or $3 for the dancing). Venue: Odd Fellows Hall, 1125 Cerrillos Road. We have not yet decided on transportation. We could either take a cab or walk -- Let's try to decide during dinner.
Sign up below if you are interested:

1.Vikram -- Slightly biased towards taking the lesson. 
2. Xue -- dancing, though not a strong preference. 
3. Mark - I could use a lesson, or twelve. Do we have transportation? 
4. Chloe -- would rather walk down with everyone than skip the lesson. 
5. Aleksandra -- would try lesson, may be stay for dancing. 

PS: If you are on the edge because you want to attend the session on "Introduction to Python". I would be happy to walk you through the basics of Python at a later time. -- Vikram

PPS: how about a Dancing Python lunch tomorrow? I can do intro tutoring too. --Chloe

Other varieties --

There's a contra on the 23rd; swing dancing most Mondays; this is supposed to be a great tango town, and the drop-in-friendly beginner class on Thursday PM was good ($20, though).

[http://www.santafenewmexican.com/Sidebar/Dance_fever_in_Santa_Fe swing, salsa, tango]

[http://www.folkmads.org/may_jun_calendar12.html contras, here and ABQ]

We've heard great Appalachian-style folk musicians here already, but I haven't found a ceili or hoedown locally.

--Chloe

==Trip to Taos==

JP and Tom are going to go to Taos on Saturday 6/16. Sights to see will include the High Road to Taos, Taos Pueblo, the Taos Gorge, Taos Earthships, and the plenty of Taos Hippies.
 
Car 1: JP's Camry 

1.[[JP]] 
2. 
3.Piotr 
4.Matteo 
5.Vikram 
 

Car 2: Tom's Car 
1 
2 Miguel 
3 Riccardo 
4 Priya 

From Andres: I'm sorry... I decided to stay tomorrow at St. John's. I'm very sorry to letting you know so late...! I want to rest, and there is some work I'd like to do...
From Nick: Same for me guys. I feel exhausted. Sorry for telling you so late. Enjoy!

==Trip to Abiquiu==

We are organizing a trip to lake Abiquiu this weekend. ATTENTION ATTENTION! Drivers (Christa, Fabio, John, Tom and David) will meet at 8:30 tomorrow morning (Saturday), and will go with Christa to town to rent 4 cars. We'll pick the others up at 9:30. Those in Christas car, meet at 9am. See you tomorrow!

Fabio

Friederike

Elena

Mikkel

John

Nona

Abby

Marco

Aleksandra

Jasmeen

Dan

Sandro

Ian (if there is any room)

Vanessa (ditto)

Christa (my car seats 5 including me, but I want to stop by Los Alamos to pick up my dog on the way. That adds ~30 min to the drive. "Christa's Honda has manual transmission. do we need a second driver on the car who can drive a stick shift car?" "Yes"- Christa

1. Christa

2. Xue (though I'm also willing to be a driver if necessary)

3. Katrien

4. Jianfeng Xu

5. Xin

Tom

Nick A

==Bandelier Field Trip==

Bandelier Field Trip
Trip to Bandelier National Monument on Sat. June 9.
We might string a visit to the Valles Caldera and Bradbury Science Museum/Los Alamos in as well. If another group would like to stay around Bandelier, we can split up.

Head over to the [[Bandelier Trip 2012 | Bandelier Trip]] Page to sign up!

==Mafia==

[[JP]] is a huge fan of Mafia/Werewolf. Let's play a game sometime in the lower commons.

Let's meet Saturday evening at 8:00 in the lower commons for our first game.

- [[Ryan_James|Ryan]] is down for this.

- Jasmeen is also a big fan of Mafia.

- Ian has never played, but is interested

- Vikram is interested in learning the game.

- Tom F. would like to join and can also teach "The Resistance" a very similar game

- Katrien wants to play too

==FOOTBALL!==

Anyone up for a friendly game of soccer? We can check out equipment from the gym.

[Team: Continuous!] 
1. [[Piotr Milanowski|Piotr]] 
2. [[Marco Duenas|Marco]] 
3.[[Oleksandr Ivanov|Alex]] 
4. 
5. 
[Team: Discrete!] 
1. [[Fabio Cresto Aleina|Fabio]] 
2. [[Matteo Chinazzi|Matteo]] 
3.[[JP]] 
4. 
5.

Complex Systems Summer School 2012-After Hours

2012-06-22T21:01:56Z

Dwu: /* Fossils and Hot Springs */

{{Complex Systems Summer School 2012}}

Use this space to organize your own after hours activities.

==Fossils and Hot Springs==

Hi, we are planning to look for fossils in the surroundings of Mora (about one hour drive from SF) tomorrow. We expect to find trilobites, maybe also ammonoids and other stuff. On the way back we'd like to stop at some hot spring resort.
Departure tomorrow saturday, at about 9:30am from the parking circle. The drivers may have to gather earlier...

If you are interested, please let us know asap so that we can organize the cars.

1. Nick G

2. Sarah

3. Daniel

Your Paleo-team

==Rodeo de Santa Fe==

We are planning to head to the [http://rodeodesantafe.org/ Rodeo] today (June 21) at 6:00p.m. please meet drivers in the parking circle and post your car if you can drive:

Car 1: Juniper's Car 

1. Katrien

2. Nick A.

3. Xue

4. Mikkel

Car 1: JP's Car 

1. Matteo

2. Avril K.

3. Laurent

4. Marco

Car 1: Sander's Car 

1. Georg G.

2. Ben

3. Vanessa

4. Daniel S

Car 1: Joanne's Car 

1. Charlie

2.

3.

'''People who still need rides'''

1.

==Trip to Taos and alpaca farm==
I am planning to rent a car to visit Taos and a alpaca farm this saturday June 23.
The alpaca farm in my plan is Victory Ranch. http://victoryranch.com/
The car should be able to carry 5 people and let's share the cost.
1. Jianfeng Xu

2. Xin lu

3. Si Tang

4.

5.

==Trip to a museum==
On weekend (Saturday?) I'm planning to visit the Georgia O'Keeffe Museum; after that I'm going to see some more of Santa Fe (no plan yet -- waiting for proposals). Anyone interested?
Cheers,
Piotr

==Road Trip to Boulder, Colorado==

From Gareth: Hi all, I'm planning on making a trip up to Boulder, CO for the weekend. It's about a 6 1/2 hr drive from Santa Fe and I'll be renting a car. My main reason for the trip is to see a friend of mine so you might have to sort your own accommodation (camping/youth hostel/hotel). We're planning on a bit of hiking nearby. The plan is to leave straight from class on Friday evening and arrive back in Santa Fe on Sunday eve. If you're interested in splitting petrol and rental fee and joining me for some Springsteen singalongs then sign up:

1.

2.

3.

4.

==Some Banjo fun out on the town==

My brother will be having a concert this Saturday June 16 at the Second Street Brewery (original location) from 6-9p.m. I will be at the parking circle at 6p.m. For those who do not sign up for a car don't forget Friday and Saturday $5 cabs.

[http://www.secondstreetbrewery.com/2012/05/todd-the-fox-9/ Todd and the Fox Venue Details]

[http://www.toddandthefox.com/fr_home.cfm To hear their music]

If anyone would like to join:

Car 1: Juniper's Car 

1. Katrien (not sure if we'll be back from the lake trip by 6pm. Somebody can take my place if they want.) back up: Georg Weber

2. Marque

3. Sarah

4. Marco

==Dancing==

Swing dancing on Monday 18th June.
Lessons from 7 to 8 P.M.
Dancing from 8 on wards.
The cost is $8 including the lesson and dancing (or $3 for the dancing). Venue: Odd Fellows Hall, 1125 Cerrillos Road. We have not yet decided on transportation. We could either take a cab or walk -- Let's try to decide during dinner.
Sign up below if you are interested:

1.Vikram -- Slightly biased towards taking the lesson. 
2. Xue -- dancing, though not a strong preference. 
3. Mark - I could use a lesson, or twelve. Do we have transportation? 
4. Chloe -- would rather walk down with everyone than skip the lesson. 
5. Aleksandra -- would try lesson, may be stay for dancing. 

PS: If you are on the edge because you want to attend the session on "Introduction to Python". I would be happy to walk you through the basics of Python at a later time. -- Vikram

PPS: how about a Dancing Python lunch tomorrow? I can do intro tutoring too. --Chloe

Other varieties --

There's a contra on the 23rd; swing dancing most Mondays; this is supposed to be a great tango town, and the drop-in-friendly beginner class on Thursday PM was good ($20, though).

[http://www.santafenewmexican.com/Sidebar/Dance_fever_in_Santa_Fe swing, salsa, tango]

[http://www.folkmads.org/may_jun_calendar12.html contras, here and ABQ]

We've heard great Appalachian-style folk musicians here already, but I haven't found a ceili or hoedown locally.

--Chloe

==Trip to Taos==

JP and Tom are going to go to Taos on Saturday 6/16. Sights to see will include the High Road to Taos, Taos Pueblo, the Taos Gorge, Taos Earthships, and the plenty of Taos Hippies.
 
Car 1: JP's Camry 

1.[[JP]] 
2. 
3.Piotr 
4.Matteo 
5.Vikram 
 

Car 2: Tom's Car 
1 
2 Miguel 
3 Riccardo 
4 Priya 

From Andres: I'm sorry... I decided to stay tomorrow at St. John's. I'm very sorry to letting you know so late...! I want to rest, and there is some work I'd like to do...
From Nick: Same for me guys. I feel exhausted. Sorry for telling you so late. Enjoy!

==Trip to Abiquiu==

We are organizing a trip to lake Abiquiu this weekend. ATTENTION ATTENTION! Drivers (Christa, Fabio, John, Tom and David) will meet at 8:30 tomorrow morning (Saturday), and will go with Christa to town to rent 4 cars. We'll pick the others up at 9:30. Those in Christas car, meet at 9am. See you tomorrow!

Fabio

Friederike

Elena

Mikkel

John

Nona

Abby

Marco

Aleksandra

Jasmeen

Dan

Sandro

Ian (if there is any room)

Vanessa (ditto)

Christa (my car seats 5 including me, but I want to stop by Los Alamos to pick up my dog on the way. That adds ~30 min to the drive. "Christa's Honda has manual transmission. do we need a second driver on the car who can drive a stick shift car?" "Yes"- Christa

1. Christa

2. Xue (though I'm also willing to be a driver if necessary)

3. Katrien

4. Jianfeng Xu

5. Xin

Tom

Nick A

==Bandelier Field Trip==

Bandelier Field Trip
Trip to Bandelier National Monument on Sat. June 9.
We might string a visit to the Valles Caldera and Bradbury Science Museum/Los Alamos in as well. If another group would like to stay around Bandelier, we can split up.

Head over to the [[Bandelier Trip 2012 | Bandelier Trip]] Page to sign up!

==Mafia==

[[JP]] is a huge fan of Mafia/Werewolf. Let's play a game sometime in the lower commons.

Let's meet Saturday evening at 8:00 in the lower commons for our first game.

- [[Ryan_James|Ryan]] is down for this.

- Jasmeen is also a big fan of Mafia.

- Ian has never played, but is interested

- Vikram is interested in learning the game.

- Tom F. would like to join and can also teach "The Resistance" a very similar game

- Katrien wants to play too

==FOOTBALL!==

Anyone up for a friendly game of soccer? We can check out equipment from the gym.

[Team: Continuous!] 
1. [[Piotr Milanowski|Piotr]] 
2. [[Marco Duenas|Marco]] 
3.[[Oleksandr Ivanov|Alex]] 
4. 
5. 
[Team: Discrete!] 
1. [[Fabio Cresto Aleina|Fabio]] 
2. [[Matteo Chinazzi|Matteo]] 
3.[[JP]] 
4. 
5.

Complex Systems Summer School 2012-After Hours

2012-06-21T19:41:47Z

Dwu: /* Rodeo de Santa Fe */

{{Complex Systems Summer School 2012}}

Use this space to organize your own after hours activities.

==Rodeo de Santa Fe==

We are planning to head to the [http://rodeodesantafe.org/ Rodeo] today (June 21) at 6:00p.m. please meet drivers in the parking circle and post your car if you can drive:

Car 1: Juniper's Car 

1. Katrien

2. Nick A.

3. Xue

4. Mikkel

Car 1: JP's Car 

1. Matteo

2. Ben

3. Laurent

4. Marco

'''People who still need rides'''

1. Georg G.

==Trip to Taos and alpaca farm==
I am planning to rent a car to visit Taos and a alpaca farm this saturday June 23.
The alpaca farm in my plan is Victory Ranch. http://victoryranch.com/
The car should be able to carry 5 people and let's share the cost.
1. Jianfeng Xu

2. Xin lu

3. Si Tang

4.

5.

==Trip to a museum==
On weekend (Saturday?) I'm planning to visit the Georgia O'Keeffe Museum; after that I'm going to see some more of Santa Fe (no plan yet -- waiting for proposals). Anyone interested?
Cheers,
Piotr

==Road Trip to Boulder, Colorado==

From Gareth: Hi all, I'm planning on making a trip up to Boulder, CO for the weekend. It's about a 6 1/2 hr drive from Santa Fe and I'll be renting a car. My main reason for the trip is to see a friend of mine so you might have to sort your own accommodation (camping/youth hostel/hotel). We're planning on a bit of hiking nearby. The plan is to leave straight from class on Friday evening and arrive back in Santa Fe on Sunday eve. If you're interested in splitting petrol and rental fee and joining me for some Springsteen singalongs then sign up:

1.

2.

3.

4.

==Some Banjo fun out on the town==

My brother will be having a concert this Saturday June 16 at the Second Street Brewery (original location) from 6-9p.m. I will be at the parking circle at 6p.m. For those who do not sign up for a car don't forget Friday and Saturday $5 cabs.

[http://www.secondstreetbrewery.com/2012/05/todd-the-fox-9/ Todd and the Fox Venue Details]

[http://www.toddandthefox.com/fr_home.cfm To hear their music]

If anyone would like to join:

Car 1: Juniper's Car 

1. Katrien (not sure if we'll be back from the lake trip by 6pm. Somebody can take my place if they want.) back up: Georg Weber

2. Marque

3. Sarah

4. Marco

==Dancing==

Swing dancing on Monday 18th June.
Lessons from 7 to 8 P.M.
Dancing from 8 on wards.
The cost is $8 including the lesson and dancing (or $3 for the dancing). Venue: Odd Fellows Hall, 1125 Cerrillos Road. We have not yet decided on transportation. We could either take a cab or walk -- Let's try to decide during dinner.
Sign up below if you are interested:

1.Vikram -- Slightly biased towards taking the lesson. 
2. Xue -- dancing, though not a strong preference. 
3. Mark - I could use a lesson, or twelve. Do we have transportation? 
4. Chloe -- would rather walk down with everyone than skip the lesson. 
5. Aleksandra -- would try lesson, may be stay for dancing. 

PS: If you are on the edge because you want to attend the session on "Introduction to Python". I would be happy to walk you through the basics of Python at a later time. -- Vikram

PPS: how about a Dancing Python lunch tomorrow? I can do intro tutoring too. --Chloe

Other varieties --

There's a contra on the 23rd; swing dancing most Mondays; this is supposed to be a great tango town, and the drop-in-friendly beginner class on Thursday PM was good ($20, though).

[http://www.santafenewmexican.com/Sidebar/Dance_fever_in_Santa_Fe swing, salsa, tango]

[http://www.folkmads.org/may_jun_calendar12.html contras, here and ABQ]

We've heard great Appalachian-style folk musicians here already, but I haven't found a ceili or hoedown locally.

--Chloe

==Trip to Taos==

JP and Tom are going to go to Taos on Saturday 6/16. Sights to see will include the High Road to Taos, Taos Pueblo, the Taos Gorge, Taos Earthships, and the plenty of Taos Hippies.
 
Car 1: JP's Camry 

1.[[JP]] 
2. 
3.Piotr 
4.Matteo 
5.Vikram 
 

Car 2: Tom's Car 
1 
2 Miguel 
3 Riccardo 
4 Priya 

From Andres: I'm sorry... I decided to stay tomorrow at St. John's. I'm very sorry to letting you know so late...! I want to rest, and there is some work I'd like to do...
From Nick: Same for me guys. I feel exhausted. Sorry for telling you so late. Enjoy!

==Trip to Abiquiu==

We are organizing a trip to lake Abiquiu this weekend. ATTENTION ATTENTION! Drivers (Christa, Fabio, John, Tom and David) will meet at 8:30 tomorrow morning (Saturday), and will go with Christa to town to rent 4 cars. We'll pick the others up at 9:30. Those in Christas car, meet at 9am. See you tomorrow!

Fabio

Friederike

Elena

Mikkel

John

Nona

Abby

Marco

Aleksandra

Jasmeen

Dan

Sandro

Ian (if there is any room)

Vanessa (ditto)

Christa (my car seats 5 including me, but I want to stop by Los Alamos to pick up my dog on the way. That adds ~30 min to the drive. "Christa's Honda has manual transmission. do we need a second driver on the car who can drive a stick shift car?" "Yes"- Christa

1. Christa

2. Xue (though I'm also willing to be a driver if necessary)

3. Katrien

4. Jianfeng Xu

5. Xin

Tom

Nick A

==Bandelier Field Trip==

Bandelier Field Trip
Trip to Bandelier National Monument on Sat. June 9.
We might string a visit to the Valles Caldera and Bradbury Science Museum/Los Alamos in as well. If another group would like to stay around Bandelier, we can split up.

Head over to the [[Bandelier Trip 2012 | Bandelier Trip]] Page to sign up!

==Mafia==

[[JP]] is a huge fan of Mafia/Werewolf. Let's play a game sometime in the lower commons.

Let's meet Saturday evening at 8:00 in the lower commons for our first game.

- [[Ryan_James|Ryan]] is down for this.

- Jasmeen is also a big fan of Mafia.

- Ian has never played, but is interested

- Vikram is interested in learning the game.

- Tom F. would like to join and can also teach "The Resistance" a very similar game

- Katrien wants to play too

==FOOTBALL!==

Anyone up for a friendly game of soccer? We can check out equipment from the gym.

[Team: Continuous!] 
1. [[Piotr Milanowski|Piotr]] 
2. [[Marco Duenas|Marco]] 
3.[[Oleksandr Ivanov|Alex]] 
4. 
5. 
[Team: Discrete!] 
1. [[Fabio Cresto Aleina|Fabio]] 
2. [[Matteo Chinazzi|Matteo]] 
3.[[JP]] 
4. 
5.

Complex Systems Summer School 2012-After Hours

2012-06-21T18:03:00Z

Dwu: /* Rodeo de Santa Fe */

{{Complex Systems Summer School 2012}}

Use this space to organize your own after hours activities.

==Rodeo de Santa Fe==

We are planning to head to the [http://rodeodesantafe.org/ Rodeo] today (June 21) at 6:00p.m. please meet drivers in the parking circle and post your car if you can drive:

Car 1: Juniper's Car 

1. Katrien

2. Nick A.

3. Xue

4. Mikkel

Car 1: JP's Car 

1. Matteo

2. Ben

3. Laurent

4. Marco

'''People who still need rides'''

1. Georg G.

2. dan

==Trip to Taos and alpaca farm==
I am planning to rent a car to visit Taos and a alpaca farm this saturday June 23.
The alpaca farm in my plan is Victory Ranch. http://victoryranch.com/
The car should be able to carry 5 people and let's share the cost.
1. Jianfeng Xu

2. Xin lu

3. Si Tang

4.

5.

==Trip to a museum==
On weekend (Saturday?) I'm planning to visit the Georgia O'Keeffe Museum; after that I'm going to see some more of Santa Fe (no plan yet -- waiting for proposals). Anyone interested?
Cheers,
Piotr

==Road Trip to Boulder, Colorado==

From Gareth: Hi all, I'm planning on making a trip up to Boulder, CO for the weekend. It's about a 6 1/2 hr drive from Santa Fe and I'll be renting a car. My main reason for the trip is to see a friend of mine so you might have to sort your own accommodation (camping/youth hostel/hotel). We're planning on a bit of hiking nearby. The plan is to leave straight from class on Friday evening and arrive back in Santa Fe on Sunday eve. If you're interested in splitting petrol and rental fee and joining me for some Springsteen singalongs then sign up:

1.

2.

3.

4.

==Some Banjo fun out on the town==

My brother will be having a concert this Saturday June 16 at the Second Street Brewery (original location) from 6-9p.m. I will be at the parking circle at 6p.m. For those who do not sign up for a car don't forget Friday and Saturday $5 cabs.

[http://www.secondstreetbrewery.com/2012/05/todd-the-fox-9/ Todd and the Fox Venue Details]

[http://www.toddandthefox.com/fr_home.cfm To hear their music]

If anyone would like to join:

Car 1: Juniper's Car 

1. Katrien (not sure if we'll be back from the lake trip by 6pm. Somebody can take my place if they want.) back up: Georg Weber

2. Marque

3. Sarah

4. Marco

==Dancing==

Swing dancing on Monday 18th June.
Lessons from 7 to 8 P.M.
Dancing from 8 on wards.
The cost is $8 including the lesson and dancing (or $3 for the dancing). Venue: Odd Fellows Hall, 1125 Cerrillos Road. We have not yet decided on transportation. We could either take a cab or walk -- Let's try to decide during dinner.
Sign up below if you are interested:

1.Vikram -- Slightly biased towards taking the lesson. 
2. Xue -- dancing, though not a strong preference. 
3. Mark - I could use a lesson, or twelve. Do we have transportation? 
4. Chloe -- would rather walk down with everyone than skip the lesson. 
5. Aleksandra -- would try lesson, may be stay for dancing. 

PS: If you are on the edge because you want to attend the session on "Introduction to Python". I would be happy to walk you through the basics of Python at a later time. -- Vikram

PPS: how about a Dancing Python lunch tomorrow? I can do intro tutoring too. --Chloe

Other varieties --

There's a contra on the 23rd; swing dancing most Mondays; this is supposed to be a great tango town, and the drop-in-friendly beginner class on Thursday PM was good ($20, though).

[http://www.santafenewmexican.com/Sidebar/Dance_fever_in_Santa_Fe swing, salsa, tango]

[http://www.folkmads.org/may_jun_calendar12.html contras, here and ABQ]

We've heard great Appalachian-style folk musicians here already, but I haven't found a ceili or hoedown locally.

--Chloe

==Trip to Taos==

JP and Tom are going to go to Taos on Saturday 6/16. Sights to see will include the High Road to Taos, Taos Pueblo, the Taos Gorge, Taos Earthships, and the plenty of Taos Hippies.
 
Car 1: JP's Camry 

1.[[JP]] 
2. 
3.Piotr 
4.Matteo 
5.Vikram 
 

Car 2: Tom's Car 
1 
2 Miguel 
3 Riccardo 
4 Priya 

From Andres: I'm sorry... I decided to stay tomorrow at St. John's. I'm very sorry to letting you know so late...! I want to rest, and there is some work I'd like to do...
From Nick: Same for me guys. I feel exhausted. Sorry for telling you so late. Enjoy!

==Trip to Abiquiu==

We are organizing a trip to lake Abiquiu this weekend. ATTENTION ATTENTION! Drivers (Christa, Fabio, John, Tom and David) will meet at 8:30 tomorrow morning (Saturday), and will go with Christa to town to rent 4 cars. We'll pick the others up at 9:30. Those in Christas car, meet at 9am. See you tomorrow!

Fabio

Friederike

Elena

Mikkel

John

Nona

Abby

Marco

Aleksandra

Jasmeen

Dan

Sandro

Ian (if there is any room)

Vanessa (ditto)

Christa (my car seats 5 including me, but I want to stop by Los Alamos to pick up my dog on the way. That adds ~30 min to the drive. "Christa's Honda has manual transmission. do we need a second driver on the car who can drive a stick shift car?" "Yes"- Christa

1. Christa

2. Xue (though I'm also willing to be a driver if necessary)

3. Katrien

4. Jianfeng Xu

5. Xin

Tom

Nick A

==Bandelier Field Trip==

Bandelier Field Trip
Trip to Bandelier National Monument on Sat. June 9.
We might string a visit to the Valles Caldera and Bradbury Science Museum/Los Alamos in as well. If another group would like to stay around Bandelier, we can split up.

Head over to the [[Bandelier Trip 2012 | Bandelier Trip]] Page to sign up!

==Mafia==

[[JP]] is a huge fan of Mafia/Werewolf. Let's play a game sometime in the lower commons.

Let's meet Saturday evening at 8:00 in the lower commons for our first game.

- [[Ryan_James|Ryan]] is down for this.

- Jasmeen is also a big fan of Mafia.

- Ian has never played, but is interested

- Vikram is interested in learning the game.

- Tom F. would like to join and can also teach "The Resistance" a very similar game

- Katrien wants to play too

==FOOTBALL!==

Anyone up for a friendly game of soccer? We can check out equipment from the gym.

[Team: Continuous!] 
1. [[Piotr Milanowski|Piotr]] 
2. [[Marco Duenas|Marco]] 
3.[[Oleksandr Ivanov|Alex]] 
4. 
5. 
[Team: Discrete!] 
1. [[Fabio Cresto Aleina|Fabio]] 
2. [[Matteo Chinazzi|Matteo]] 
3.[[JP]] 
4. 
5.

Experiment sign-up

2012-06-18T19:42:48Z

Dwu: /* Tuesday June 19 */

Hi! Please sign up for one slot below. The experiment will be held in the JUNIOR Common Room next to the great hall (NOT JP's office - the other side of the great hall). Please arrive on time! Ta.

- Katrien, Vanessa, Sandro, Cameron & Jasmeen

==Monday June 18==

Morning Break:

10.20-10.30: Piotr X

10.30-10.40: Laurent X

Lunch Break:

12.05-12.15: Chloe X

'''12.15-12.25: Andres ???'''

12.25-12.35: Xue X

12.35-12.45: Oleksandr X

12.55-1.05: Nick A X

1.05-1.15: Fabio X

1.15-1.25: Priya X

Afternoon:

4.30-4.40: Matteo

4.40-4.50:Ben

4.50-5.00: Sarah

5.00-5.10: Charlie

5.10-5.20: Abby

5.20-5.30: Elena

5.30-5.40: Riccardo

5.40-5.50: [[JP]]!

5.50-6.00: Ryan

6.00-6.10: [[Xin]]

6.10-6.20: Ian

6.20-6.30: Keegan

6.30-6.40: Aleksandra

6.40-6.50: Tom

6.50-7.00:Christa

==Tuesday June 19==

Morning Break:

10.20-10.30: Vikram

10.30-10.40: Oscar

Lunch Break:

12.30-12.40: Gareth

12.40-12.50: Sanith

12.50-1.00: Nona

1.00-1.10:

1.10-1.20:

1.20-1.30:

Afternoon:

4.30-4.40: dan

4.40-4.50:

4.50-5.00:

5.00-5.10:

5.10-5.20:

5.20-5.30:

5.30-5.40:

5.40-5.50:

5.50-6.00:

6.00-6.10:

6.10-6.20:

6.20-6.30:

6.30-6.40:

6.40-6.50:

6.50-7.00:

Complex Systems Summer School 2012-After Hours

2012-06-14T22:42:35Z

Dwu: /* Trip to Abiquiu */

{{Complex Systems Summer School 2012}}

Use this space to organize your own after hours activities.

==Dancing at the Rouge Cat==

Some of us will be going dancing on Friday night at the [http://rougecat.com/ Rouge Cat] they have a downstairs disco floor and it's a whole lot of fun. JP and I will be leaving SJC parking circle around 10:00p.m. to head over there.

Car 1: Juniper's Car 

1.

2.

3.

4.

Car 2: JP's Car 

1.

2.

3.

4.

==Some Banjo fun out on the town==

My brother will be having a concert this Saturday June 16 at the Second Street Brewery (original location) from 6-9p.m. I will be at the parking circle at 6p.m.

[http://www.secondstreetbrewery.com/2012/05/todd-the-fox-9/ Todd and the Fox Venue Details]

[http://www.toddandthefox.com/fr_home.cfm To hear their music]

If anyone would like to join:

Car 1: Juniper's Car 

1. Katrien

2. Marque

3. Sarah

4. Marco

==Dancing==
The beginner tango classes tonight (Thursday, 14th June) are open to drop-ins, especially if we have lead-follow parity, but they're expensive for intro dance classes: $20 from 7:30 to 9. 
1. Chloe 
2. Vikram 
3. Aleksandra 

Of particular varieties --

There's a contra on the 23rd; swing dancing most Mondays; this is supposed to be a great tango town, and I'm looking for drop-in-friendly beginner classes...

[http://www.santafenewmexican.com/Sidebar/Dance_fever_in_Santa_Fe swing, salsa, tango]

[http://www.folkmads.org/may_jun_calendar12.html contras, here and ABQ]

We've heard great Appalachian-style folk musicians here already, but I haven't found a ceili or hoedown locally.

--Chloe

==Trip to Taos==

JP and Tom are going to go to Taos on Saturday 6/16. Sights to see will include the High Road to Taos, Taos Pueblo, the Taos Gorge, Taos Earthships, and the plenty of Taos Hippies.
 
Car 1: JP's Camry 

1.[[JP]] 
2.Nick G 
3.Piotr 
4.Matteo 
5.Vikram 
 

Car 2: Tom's Car 
1 Andres G. 
2 Miguel 
3 Riccardo 
4 Priya 

==Trip to Abiquiu==

We are organizing a trip to lake Abiquiu this weekend. Google maps says it should take about 1:10 hour driving from Santa Fe. Who's interested? We'll have to rent cars to go there.

Fabio

Friederike

Elena

Mikkel

John

Nona

Abby

Marco

Aleksandra

Jasmeen

Dan

Christa (my car seats 5 including me, but I want to stop by Los Alamos to pick up my dog on the way. That adds ~30 min to the drive. "Christa's Honda has manual transmission. do we need a second driver on the car who can drive a stick shift car?"

1. Christa

2. Xue (though I'm also willing to be a driver if necessary)

3. Katrien

4. Jianfeng Xu

5.

==Bandelier Field Trip==

Bandelier Field Trip
Trip to Bandelier National Monument on Sat. June 9.
We might string a visit to the Valles Caldera and Bradbury Science Museum/Los Alamos in as well. If another group would like to stay around Bandelier, we can split up.

Head over to the [[Bandelier Trip 2012 | Bandelier Trip]] Page to sign up!

==Mafia==

[[JP]] is a huge fan of Mafia/Werewolf. Let's play a game sometime in the lower commons.

Let's meet Saturday evening at 8:00 in the lower commons for our first game.

- [[Ryan_James|Ryan]] is down for this.

- Jasmeen is also a big fan of Mafia.

- Ian has never played, but is interested

- Vikram is interested in learning the game.

- Tom F. would like to join and can also teach "The Resistance" a very similar game

- Katrien wants to play too

==FOOTBALL!==

Anyone up for a friendly game of soccer? We can check out equipment from the gym.

[Team: Continuous!] 
1. [[Piotr Milanowski|Piotr]] 
2. [[Marco Duenas|Marco]] 
3.[[Oleksandr Ivanov|Alex]] 
4. 
5. 
[Team: Discrete!] 
1. [[Fabio Cresto Aleina|Fabio]] 
2. [[Matteo Chinazzi|Matteo]] 
3.[[JP]] 
4. 
5.

Complex Systems Summer School 2012-Tutorials

2012-06-13T17:41:00Z

Dwu: /* Python, Computational Mechanics, and Information Theory */

{{Complex Systems Summer School 2012}}

CSSS participants come from a wide range of disciplines. Participants are encouraged to share their knowledge by organizing their own tutorials.

Also, please post requests for tutorials here.

==Python, Computational Mechanics, and Information Theory==

There has been interest in more discussion on a number of topics, and so i'm offering to have evening discussions on them. please sign up below so that i can get a feel for the number of people who would be attending. also, please put a preference for what day it should be.

===Python===
Sign up below if you'd like an introduction to basic python programming. Python is a general purpose, very flexible and useful programming language. It is used pretty extensively in scientific computing.

dan wu: wu12345@gmail.com Let me know when we're meeting

===Information Theory===
Interested in turning your data into bits, or seeing how the bits over there are related to the bits over here? If so, sign up below. 
- Matteo 

===Computational Mechanics===
If you'd like to know more about epsilon machines, measures of complexity, how to go from a map to a machine, i'm happy to discuss it all. 
- Matteo 

Yes please! --Chloe 

==Order Book Dynamics: Learn how to trade in 15min==

--I'm happy to repeat this -just get in touch with me.--

If you are curious about how stocks trade and want to try your luck, I'll
be going over some of the basics with a hands-on example.

Meet at 7.30pm in main lecture hall Thursday June 7th. Please make sure
to bring your laptop.

Sanith

==An easier way to get a bifurcation plot==

Hey guys
I have been working in the past in obtaining bifurcation plots for different physical systems. There's a better way to get these pictures instead of getting the evolution at every parameter value of interest. This is called ''numerical continuation'' and basically involves tracking a curve. I plan to give a informal talk on how to do this and maybe even a demo on applying this technique on 14th June at 6.30 pm. Do mail me if you are interested at '''iitm.priya@gmail.com''' or sign up below.
[[User:Priya|Priya]]

- [[Ryan James|Ryan]] is interested in this. 
- Riccardo is interested in this. 
- Vikram is interested in this. 
- Matteo is interested in this. 
- Hide is interested in this. 
- Katrien wants to hear more about this. 
- Cameron is interested in this and would like to see [http://itunes.apple.com/us/app/xpp/id433859546?mt=8 this] in action if anyone has an iPad. 
- Oscar is interested in this. 

==Using Tisean on R on OS X==
first install TISEAN, like you've done already. Make sure R is up to date (v 2.15).
you can try to install RTisean from CRAN
install.packages("RTisean"); library(RTisean); henon()
But me and Dave both got an error about some bad file name, something about con and something about a long path involving -Tmp-
Solution:
remove.packages("RTisean")
restart R
download this: http://cl.ly/0I0b2P2L311y1q0q0y0n
install it, it changes line 74 of nativeTISEAN.R which has some problems with file handling
If you are golden, then:
> henon()
V1 V2
[1,] -0.1232481 -1.030383

Alfred Hubler's Nonlinear Dynamics Lab 2012

2012-06-11T23:28:04Z

Dwu: /* Monday, June 11, 6:00pm ** MOVED TO WEDNESDAY 3:00 - 5:00 ** */

{{Complex Systems Summer School 2012}}

==Thursday, June 7, 6:00pm==

1. Sarah Tweedt 
2. Georg F. Weber 
3. Georg M. Goerg 
4. Mikkel Vestergaard 
5. Friederike Greb 
6. Fabio Cresto Aleina 
7. Benji zusman 
8. Elena del Val 
9. Riccardo Fusaroli 
10. Nick Allgaier 
11. John Long 
12. Sepehr Ehsani 
13. David Pugh 
14. Keegan Hines 
15. Sanith 
16. Nona Karalashvili

==Friday, June 8 7:00am==
PLEASE NOTE THAT THIS IS AN EARLY MORNING CLASS! 
1. Matteo Chinazzi 
2. Xin Lu 
3. Joanne Rodrigues 
4. Chloe Lewis 
5. Seth Frey 
6. Graham Sack 
7. Piotr Milanowski 
8. Andres Gomez-Lievano 
9.Ian Wood 
10.Gareth Haslam 
11.Christa Brelsford 
12. Carissa Flocken 
13. 
14. 
14. 

==Monday, June 11, 6:00pm ** MOVED TO WEDNESDAY 3:00 - 5:00 ** ==
1. Hidetoshi Inamine 
3. Xiaoli Dong 
4. Si Tang 
5. Abby Horn 
6. Xue Feng 
7. Priya Subramanian 
8. Vanessa Ferdinand 
9.Tom Fennewald 
10.Jianfeng Xu 
11.Nicolas Goudemand 
12.Katrien Beuls 
13.Charlie Brummitt 
14. 

==Tuesday, June 12, 6:00pm==
1. Marco Duenas

2. Jasmeen Kanwal 
3. Shawana Wilson 
4. Miguel Lurgi 
5.
6. Mark Longo 
7. Oleksandr Ivanov 
8. Jon Stoffel 
9. Daniel Strombom 
10. Cameron Smith 
11. Enrico Sandro Colizzi 
12. Ben Althouse 
13. Oscar Patterson 
14. 
15.

Complex Systems Summer School 2012-Projects & Working Groups

2012-06-11T03:16:45Z

Dwu: /* "Small Steps and Big Ideas" Group */

{{Complex Systems Summer School 2012}}

==Project proposals==

=== Nonequilibrium game theory ===
My hope is to adapt some SFI-based models, by people like Crutchfield and Farmer, so that they will quantitatively or qualitatively reproduce features of real human data. Of course, that is very specific, and I'm up for all kinds of ideas in the areas of game learning, game dynamics, small group collective behavior, cognitive science, nonlinear time series, non-eq time series, etc., etc.

Meet me, Seth Frey, at dinner on Thursday and Friday. Also, here's a [http://posterhall.org/igert2012/posters/218 fun 3-minute video] of the effect I'm personally the most interested in, with a special appearance from The Princess Bride.

=== Enzyme kinetics – Do enzymes just accelerate equilibrium or play an active role in chemical reactions? ===
Enzyme networks (e.g. glycolysis) and catalysts in complex mixtures (e.g. Belusov-Zhabotinski reaction) can profoundly influence the outcome of a chemical reaction system. What about a single enzyme? Biochemistry textbooks uniformly say that an enzyme accelerates a reaction without altering its outcome. Yet, the set of differential equations that generically describes enzyme catalysis has remarkable resemblance to the Roessler equations (a textbook example of a non-linear, complex system). With a fixed substrate input or a steady substrate flow, a single enzyme probably cannot affect the reaction outcome. However, sinusoidal or pulsating substrate input, substrate activation or product inhibition, coupling of two enzymes could turn the reaction pattern non-linear. For this project, the sets of equations to study are quite well established – they need to be analyzed. In contrast to some of the more ambitious ideas circulated, this task is exhaustively doable in less than four weeks.

I am Georg Weber. If you are interested in studying this problem, please find me on Tuesday over lunch or dinner (or talk to me at any other unstructured time).
=== Traffic pattern analysis - Can we estimate car velocity by only observing car counts? ===
==== Problem statement ====
Imagine you have a monitored highway section with a start and end point. At both points you count the number of cars that pass by. The question I'd like to answer / simulate / estimate is: can we make some inference about the velocity of cars although we only have their counts? This would be very useful from an engineering / economic perspective because it's much easier / cheaper to count cars instead of actually tracking them from A to B.
==== Ideas on how to approach this ====
I have some intuition about how to go about this, but these are purely statistical (think of it as birth and death process; or as particles in a system that have a certain lifetime - cars in the highway section are like particles in a system, and their velocity is just inverse proportional to their lifetime in this highway section). I would like to see if using explicit physical modeling of motion and agent-based modeling of traffic flow could shed more light on this problem.

'''Update 06/05/12:''' Just today we saw ''Takens theorem'' about how we can infer a systems structure from only observing a subset of variables. Well, it seems like that's exactly what this project is about.

If you are interested to see more about this check out the [[Georg_M_Goerg#SFI_Project:_Traffic_pattern_analysis_-_Can_we_estimate_car_velocity_by_only_observing_car_counts.3F_.3D|SFI Project]] subsection on [[Georg_M_Goerg|Georg M. Goerg]] or email me to my_3_initials_in_lowercase@stat.cmu.edu. Let's say we meet on Wednesday for lunch (or just ask me any other time you see me around).

=== Cultural Evolution - things that look like drift but aren't ===
Lots of cultural evolution looks like drift (Bently et al 2004 'Random drift and culture change"). But what social transmission or cognitive learning mechanisms are isomorphic to random sampling with replacement from cultural inputs? In biological evolution, drift serves as a null model of sorts - one that should be ruled out before you can claim that anything more interesting is happening. However, it's not clear what the "uninteresting" type of change is for things that replicate by passing through human cognition and human social systems - like culture does. Is there even a reasonable equivalent of drift in cultural transmission? How should we go about conceptualizing and modeling the evolutionary forces at play in culture?

One candidate for a drifty-lookin' human behavior is probability matching: when people reproduce similar distributions of variation to that which they've learned from. And probability matching is rampant in human behavior (from language learning, to decision making, and even at the neural level). But I think this is a clearly different process than drift, however it still may qualify under Bentley's vague criteria - we can test that out. And there have got to be more drift-esque processes, anyone have any ideas?

If you're interested in these issues or modeling evolution (of any type of system), please give me a shout!

Vanessa

vanferdi [at] gmail.com

==="Small Steps and Big Ideas" Group===

[http://tuvalu.santafe.edu/events/workshops/index.php/Christa_Brelsford Christa] [http://tuvalu.santafe.edu/events/workshops/index.php/Daniel_Wu Dan] [http://tuvalu.santafe.edu/events/workshops/index.php/Xin_Lu Xin] and [http://tuvalu.santafe.edu/events/workshops/index.php/Thomas_Fennewald Tom] spent a while talking after dinner about a bunch of big ideas. Some things we thought about were *big data type network problems, *integrating qualitative social information with models of physical systems, *using games to understand cooperation and decision making.

We'll meet at dinner at 5:30 today (Tuesday, June 5th) in the cafeteria.

Dan: Here's a really relevant paper I've come across "intervening to achieve cooperative ecosystem management" JASSS http://jasss.soc.surrey.ac.uk/4/2/4.html

Using twitter data tutorial:
http://sunlightfoundation.com/blog/2012/05/24/tools-for-transparency-a-how-to-guide-for-social-network-analysis-with-nodexl/

=== 107 Proteins in 10-15 cubic meters ===
Cells rely on proteins to perform vital metabolic and signaling functions; however, it is unclear how proteins are successfully directed to their necessary cellular location(s) in a densely-packed macromolecular environment within the cytoplasm and on the cellular membrane in a short timescale (see for example [http://www.pnas.org/content/108/16/6438.full Weigel et al., PNAS 2011]). Using the cell as a manipulatable model of complexity, one could begin to define the parameters and questions, as they pertain to prokaryotic and eukaryotic cells. If interested, please drop me a line: Sepehr Ehsani; sepehr.ehsani[at]utoronto.ca.

=== Innovation and Technological Progress ===

I noticed that a number of people mentioned that they were interested in some way in relation to innovation. I was wondering if anyone was interested in a project looking at how particular technologies progress over time and whether charting the form of successful (and/or unsuccessful) previous technologies such as the transistor, fission reactor, mobile phone, etc. in terms of either price, efficiency, or some other variable may be useful in predicting whether a current technology such as solar PV, fuel cell, or something else is following a similar trajectory. Other possible ideas might be to look at using patent, publication, or collaboration network data to reveal certain features of innovation that are not captured by other statistics, particularly for technologies that have yet to reach the market. SFI Professor Doyne Farmer has looked at some of this already in 'The Role of Design Complexity in Technology Improvement', see link: http://adsabs.harvard.edu/abs/2009arXiv0907.0036M

This could be a jumping off point for some ideas on data, methods, models etc. Just throwing the idea out there and it's welcome to completely change but if you're interested, message me (Gareth Haslam) haslam [at] ias.unu.edu or find me in class. [[Innovation Group Project]]

=== Space, Stochasticity, Stability; Speciation? ===

[http://tuvalu.santafe.edu/events/workshops/index.php/Xue_Feng Xue], [http://tuvalu.santafe.edu/events/workshops/index.php/Chloe_Lewis Chloe] and [http://tuvalu.santafe.edu/events/workshops/index.php/Xiaoli_Dong Xiaoli]are all working in ecosystems that experience_ a lot of unpredictability in a limiting ecosystem variables (water and/or nutrients); we see patchiness in space and time in how organisms are arranged; and we have some ideas about how the stochasticity may cause the spatial arrangements. [http://tuvalu.santafe.edu/events/workshops/index.php/Si_Tang Si] is working on the stability and robustness of ecosystems.

With enough time, this is likely to involve speciation either to express different strategies, or as a result of spatial separation.

The [[Spatial-Stochastic]] group is writing up their ideas to share here and look for overlap and coupling.

==== Entrenchment and rhythms ====

One idea that I had was to look at the entrenchment properties of various systems. This is an universal phenomena that arises from nonlinear mechanisms interacting with a fluctuation environment and appears most often in animal and plant physiological rhythms (e.g. circadian rhythms, sleep cycles) and result in predictable oscillations that can also sometimes be forced into stable/unstable states by noise (in the case of humans, this can result in disease). I would like to see if there are any mechanisms that produce similar behavior at the ecosystem level based on structural or species/functional diversity, especially in climates where the energy/water input is non-uniform. The "noise" in this case could be natural or anthropogenic disturbances. I think this can be generalized into many different types of systems. If you have an idea on this, please shoot me an email at xue.feng@duke.edu

=== Plasticity in Neural Networks ===
I've done some modeling which shows that the amount of genetic variation that accumulates at any particular metabolic gene (enzyme) in a population at any given time is a function of the network topology in which the gene is embedded, as well as the distance of the network output from an optimum. So, for instance, in a linear metabolic network, enzymes at the beginning of a pathway will tend to be more constrained (show less variation in the population) than at the end of the pathway. This makes sense given that any changes in those first genes would ripple through the system and have a greater relative effect than mutations in later genes. However, this is only true when a population is already close to an optimum. When far from an optimum, we see the exact opposite trend with more variation in the front of the pathway. This also makes sense - when far from a goal, taking bigger steps gives individuals a better chance of achieving higher fitness. The system as a whole then uses the different relative step sizes according to pathway position to "fine tune" its output.
I think these findings are quite general - at least the model we used was simple enough that it could apply to many different types of directional developmental processes. We can conceptualize these "genes" more generally as sequential steps in a developmental process with some arbitrary goal. These could be steps in a factory assembly line, major product revisions versus minor releases, or (and this is my favorite), neurons learning about their environment. I'm curious what would happen if we took a similar approach to model neural networks. Genetic variation is the raw material for evolution while neural plasticity is the raw material for learning. The question we would be trying to answer is where, within a neural network, would we expect the most plasticity given a particular network topology and distance form a learning goal.
Please contact me (Mark Longo) if this sounds interesting. I'll be available during unstructured time, or you can email mlongo@stanford.edu.
[http://tuvalu.santafe.edu/events/workshops/index.php/Mark_D._Longo]

=== Robustness of complex networks ===
* '''Project page moved''' to '''[[Robustness of complex networks (project)]]'''

=== Systemic Risk in Financial Networks and/or an ABM of money/liquidity===

'''Systemic Risk in Financial Networks:''' Hypothesis: the motive to diversify risk at the level of the individual agent (i.e., for an agent to increase its connectivity) will increase systemic risk (by systemic risk I mean vulnerability of the system to widespread collapse). Point of departure is the [http://en.wikipedia.org/wiki/Forest-fire_model Forest Fire] model from statistical physics.

Key difference(s) between the physics version of the Forest Fire model, and the "economics" version of the Forest Fire model I have in mind are:
* Tree growth probability (which determines network structure) must be endogenous. Agents must be able to choose which other agents to link with.
* Probability of lightning strikes (i.e., defaults on specific loans) must also be endogenous.

I think that financial networks might exhibit self-organizing criticality in the sense that diversification will reduce the probability of lightning strikes (i.e., defaults), however over time systemic risk builds up as a result of the diversification which means that eventually a small number of lightning strikes might be enough to bring the entire system down.

'''ABM of the emergence of Money:'''
Basically, I would be interested in building an ABM of the emergence of money based around the following economic models of money developed by Nobu Kiyotaki and John Moore:
* [[File:Kiyotaki_and_Moore_(2001).pdf | Evil is the Root of all Money]]
* [[File:Financial-Deepening.pdf | Financial Deepening]]

These models take a broad view of money: "money" is any asset which is widely accepted as a medium of exchange. In these models agents manage projects which require capital investment now in order to generate a return at some point in the future and agents must trade financial promises (think debt contracts) in order to obtain the needed investment. Two key parameters of is these models (which are assumed COMMON to all agents in the above models in order to maintain analytical tractibility) are 0 < theta < 1 and 0 < phi < 1. Theta is the fraction of the future return from the project that an agent can promise to repay in the future in exchange for investment now. Phi is the fraction of the face value of a debt contract (which by construction is a contract between two agents) that can be re-sold to a third agent.

Hypothesis: In an ABM where agents differ in terms of both theta and phi, the promises of only a small number of agents will be widely traded (i.e., will serve as money).

For more information about the project check out the [[Emergence of Money and Liquidity]].

=== Price-time dynamics of contracts traded on prediction markets===
Prediction markets have been shown to outperform traditional methods of polls and opinion surveys in forecasting future events. I am interested in exploring the price-time dynamics of contracts traded on prediction markets to better understand how they are able to aggregate individual opinion to establish collective insight.

Several questions that I’m curious to probe further:
* How do ‘information shocks’ generated by news sources influence price-time trajectories?
* Can features of the underlying dynamics be characterized using a simple model?
* What is the minimum number of traders required for an accurate prediction?
On a separate note, I invite you to share your opinion regards whether “China will win the most medals at the 2012 London Olympics”, by logging into the following [https://csss12.inklingmarkets.com/user/login site] (please send me your email address and I will send you the login details).

If you haven't used a prediction market before don't worry -just follow the instructions provided in the site to 'buy' and 'sell' contracts according to your expectation.

If you are interested in the discussing any of the above questions or have other ideas related to prediction markets please get in touch with me at: sanith at mitre dot org

Useful Links:
* [[File:Predictionmarkets.pdf | Intro to Prediction Markets -Wolfers and Zitzewitz]]
* [[File:InfoMarkets(book).pdf | Prediction Markets -Hahn and Tetlock]]
* [http://pybrain.org Neural networks using Python]

=== Internal models: what do they do and how are they built?===
In the past decade(s) Bayesian statistics has come to dominate empirical science. Consequently, the significance of prior beliefs for guiding inference has become widely accepted. But how do we map the concept of prior beliefs onto natural systems? I argue that the composition of organisms realize internal models of their environment. These internal models manifest as structured behavior, which we scientists describe as reflecting prior beliefs or bias. In humans you have reflexes at one extreme and the influence of memories upon behavior at the other. It is an open question how these internal models are instantiated in biological systems. Are they structural motifs in neural networks? Protein networks within cells? Concepts such as memory, storage, and recall provide relevant bridges between the statistical formulation of these ideas and the physics of computation, but these are jumping off points at best.

My suspicion is that part of the challenge is we don’t have a clear understanding of what benefits internals models impart to organisms beyond some general statement about resolving uncertainty. This is compounded by the fact that we probably wouldn’t recognize an internal model if we saw one. This is why I find work over the past decade upon self-localizing and mapping (SLAM) systems to be so interesting. To my knowledge, these are the first man-made systems designed with the objective of imparting complex internal models to artificial systems. The Mars rover is a SLAM system. The driverless car depends critically upon a SLAM system. The successes, and failures, of these systems have exposed the complexity of functionalities we use so naturally that they evade our notice. These include differentiating between static and dynamic elements of our environment as well as ascribing our sensations to external or internal causes. In the least, the design of these systems offer first order models for what an internal model of non-trivial complexity might look like.

Here are a few files on SLAM which you might enjoy. The first is a general tutorial on the concepts involved and the second and third are about a particular implementation which I find fascinating: DP-SLAM.
*[[File:SLAMTutorial1(2006)DurrantWhyte&Bailey.pdf | SLAM Tutorial]]
*[[File:Dpslam1.pdf | DP-SLAM 1.0 ]]
*[[File:Dpslam2.pdf | DP-SLAM 2.0 ]]

I’m interested in exploring the role of internal models as well as how they are embedded in natural systems. The project group is currently converging, but I am interested in cross-over between projects as well as intermittent discussions. In the next few days I will have my SLAM framework up and running. Feel free to email me at: jlong29@gmail.com (John Long)

=== Rain-Climate-Agriculture Interactions ===

We are trying to think about the influence of different precipitation/climate regimes on farming strategies and crop prices. In places where water is the limiting factor for crop growth, changes in precipitation intensity, or in precipitation patterns are likely to dramatically affect the choices that farmers could make in order to produce more, or simply to survive. How will they react under different regimes? Which are the best strategies? We are meeting tomorrow afternoon (Sunday): if you're interested in it, you're very welcome to join us! fabio.cresto-aleina@zmaw.de and fgreb@uni-goettingen.de

Innovation Group Project

2012-06-11T02:38:11Z

Dwu: /* From Jianfeng Xu: */

== Ideas for Innovation Project ==

Please list here your individual ideas for what we might like to work on. At the moment Charlie Brummitt, Gareth Haslam, Daniel Wu, Nicolas Goudemand, Andres Gomez-Lievano, and Jienfang Xu have all expressed an interest. If there is anyone I have missed please let me (GH) know. Everything is still open at the moment so I think we agreed that each person should try and form a research question and then a few details about idea, methods etc. (keep it short). Please use this page to post comments, papers, and other thoughts. Also, please list any particular skills/assets you may have (existing data, software familiarity, programming, game design, graphic design, network construction etc.).

=== Patent data ===
NBER has useful [http://www.nber.org/patents/ patent data] in CVS ASCII format. I (Charlie) just loaded it into ''Mathematica'' and plotted the # patents over time [[File:patents-over-time.pdf]] and # patents per captia over time [[File: patents-per-capita.pdf]]. The latter is roughly constant and might grow somewhat linearly after 1980.

==== From Andres: ====
Apparently, wiki doesn't allow to upload csv files... Do you know a way to upload it somewhere (so we don't have to be sending files by email all the time)?

==== From Jianfeng Xu:====
two papers,

David krakauer derived a "lightspeed" of biology evolution in this paper.
http://dl.dropbox.com/u/25540984/CHAOEH213037110_1.pdf

About technology singularity:
http://www-rohan.sdsu.edu/faculty/vinge/misc/singularity.html

some data may be useful at Bela Nagy's website:
http://pcdb.santafe.edu/

== from dan ==
exploring sociotechnical transitions into more environmentally sustainable products
gupea.ub.gu.se/bitstream/2077/26536/1/gupea_2077_26536_1.pdf

=== Idea 1 ===

Complex Systems Summer School 2012-After Hours

2012-06-10T04:12:31Z

Dwu: /* Prometheus */

{{Complex Systems Summer School 2012}}

Use this space to organize your own after hours activities.

==Prometheus==
While I have a rental car that seats up to 5, I've been thinking of going to see Prometheus in theaters. It shows tonight the 9th at 10:40 so we need to meet at the visitor's circle at 10:25, if anyone's interested. more than 5 people will require another car or taxis.

1. Ian

2. John

3. Fabio

4. Ryan

5. Dan

==Saturday Football==

Who is up for a quick match tomorrow at 8am before the Bandelier trip? Let's make it a relaxed, just-for-fun match. Sign up below:

- [[Miguel Lurgi|Miguel]]

==Bandelier Field Trip==

Bandelier Field Trip
Trip to Bandelier National Monument on Sat. June 9.
We might string a visit to the Valles Caldera and Bradbury Science Museum/Los Alamos in as well. If another group would like to stay around Bandelier, we can split up.

Head over to the [[Bandelier Trip 2012 | Bandelier Trip]] Page to sign up!

==Mafia==

[[JP]] is a huge fan of Mafia/Werewolf. Let's play a game sometime in the lower commons.

Let's meet Saturday evening at 8:00 in the lower commons for our first game.

- [[Ryan_James|Ryan]] is down for this.

- Jasmeen is also a big fan of Mafia.

- Ian has never played, but is interested

- Vikram is interested in learning the game.

- Tom F. would like to join and can also teach "The Resistance" a very similar game

==FOOTBALL!==

Anyone up for a friendly game of soccer? We can check out equipment from the gym.

[Team: Continuous!] 
1. [[Piotr Milanowski|Piotr]] 
2. [[Marco Duenas|Marco]] 
3.[[Oleksandr Ivanov|Alex]] 
4. 
5. 
[Team: Discrete!] 
1. [[Fabio Cresto Aleina|Fabio]] 
2. [[Matteo Chinazzi|Matteo]] 
3.[[JP]] 
4. 
5.

Complex Systems Summer School 2012-Projects & Working Groups

2012-06-07T19:06:09Z

Dwu: /* "Small Steps and Big Ideas" Group */

{{Complex Systems Summer School 2012}}

==Project proposals==

=== Nonequilibrium game theory ===
My hope is to adapt some SFI-based models, by people like Crutchfield and Farmer, so that they will quantitatively or qualitatively reproduce features of real human data. Of course, that is very specific, and I'm up for all kinds of ideas in the areas of game learning, game dynamics, small group collective behavior, cognitive science, nonlinear time series, non-eq time series, etc., etc.

Meet me, Seth Frey, at dinner on Thursday and Friday. Also, here's a [http://posterhall.org/igert2012/posters/218 fun 3-minute video] of the effect I'm personally the most interested in, with a special appearance from The Princess Bride.

=== Enzyme kinetics – Do enzymes just accelerate equilibrium or play an active role in chemical reactions? ===
Enzyme networks (e.g. glycolysis) and catalysts in complex mixtures (e.g. Belusov-Zhabotinski reaction) can profoundly influence the outcome of a chemical reaction system. What about a single enzyme? Biochemistry textbooks uniformly say that an enzyme accelerates a reaction without altering its outcome. Yet, the set of differential equations that generically describes enzyme catalysis has remarkable resemblance to the Roessler equations (a textbook example of a non-linear, complex system). With a fixed substrate input or a steady substrate flow, a single enzyme probably cannot affect the reaction outcome. However, sinusoidal or pulsating substrate input, substrate activation or product inhibition, coupling of two enzymes could turn the reaction pattern non-linear. For this project, the sets of equations to study are quite well established – they need to be analyzed. In contrast to some of the more ambitious ideas circulated, this task is exhaustively doable in less than four weeks.

I am Georg Weber. If you are interested in studying this problem, please find me on Tuesday over lunch or dinner (or talk to me at any other unstructured time).
=== Traffic pattern analysis - Can we estimate car velocity by only observing car counts? ===
==== Problem statement ====
Imagine you have a monitored highway section with a start and end point. At both points you count the number of cars that pass by. The question I'd like to answer / simulate / estimate is: can we make some inference about the velocity of cars although we only have their counts? This would be very useful from an engineering / economic perspective because it's much easier / cheaper to count cars instead of actually tracking them from A to B.
==== Ideas on how to approach this ====
I have some intuition about how to go about this, but these are purely statistical (think of it as birth and death process; or as particles in a system that have a certain lifetime - cars in the highway section are like particles in a system, and their velocity is just inverse proportional to their lifetime in this highway section). I would like to see if using explicit physical modeling of motion and agent-based modeling of traffic flow could shed more light on this problem.

'''Update 06/05/12:''' Just today we saw ''Takens theorem'' about how we can infer a systems structure from only observing a subset of variables. Well, it seems like that's exactly what this project is about.

If you are interested to see more about this check out the [[Georg_M_Goerg#SFI_Project:_Traffic_pattern_analysis_-_Can_we_estimate_car_velocity_by_only_observing_car_counts.3F_.3D|SFI Project]] subsection on [[Georg_M_Goerg|Georg M. Goerg]] or email me to my_3_initials_in_lowercase@stat.cmu.edu. Let's say we meet on Wednesday for lunch (or just ask me any other time you see me around).

=== Cultural Evolution - things that look like drift but aren't ===
Lots of cultural evolution looks like drift (Bently et al 2004 'Random drift and culture change"). But what social transmission or cognitive learning mechanisms are isomorphic to random sampling with replacement from cultural inputs? In biological evolution, drift serves as a null model of sorts - one that should be ruled out before you can claim that anything more interesting is happening. However, it's not clear what the "uninteresting" type of change is for things that replicate by passing through human cognition and human social systems - like culture does. Is there even a reasonable equivalent of drift in cultural transmission? How should we go about conceptualizing and modeling the evolutionary forces at play in culture?

One candidate for a drifty-lookin' human behavior is probability matching: when people reproduce similar distributions of variation to that which they've learned from. And probability matching is rampant in human behavior (from language learning, to decision making, and even at the neural level). But I think this is a clearly different process than drift, however it still may qualify under Bentley's vague criteria - we can test that out. And there have got to be more drift-esque processes, anyone have any ideas?

If you're interested in these issues or modeling evolution (of any type of system), please give me a shout!

Vanessa

vanferdi [at] gmail.com

==="Small Steps and Big Ideas" Group===

[http://tuvalu.santafe.edu/events/workshops/index.php/Christa_Brelsford Christa] [http://tuvalu.santafe.edu/events/workshops/index.php/Daniel_Wu Dan] [http://tuvalu.santafe.edu/events/workshops/index.php/Xin_Lu Xin] and Tom spent a while talking after dinner about a bunch of big ideas. Some things we thought about were *big data type network problems, *integrating qualitative social information with models of physical systems, *using games to understand cooperation and decision making.

We'll meet at dinner at 5:30 today (Tuesday, June 5th) in the cafeteria.

Dan: Here's a really relevant paper I've come across "intervening to achieve cooperative ecosystem management" JASSS http://jasss.soc.surrey.ac.uk/4/2/4.html

=== 107 Proteins in 10-15 cubic meters ===
Cells rely on proteins to perform vital metabolic and signaling functions; however, it is unclear how proteins are successfully directed to their necessary cellular location(s) in a densely-packed macromolecular environment within the cytoplasm and on the cellular membrane in a short timescale (see for example [http://www.pnas.org/content/108/16/6438.full Weigel et al., PNAS 2011]). Using the cell as a manipulatable model of complexity, one could begin to define the parameters and questions, as they pertain to prokaryotic and eukaryotic cells. If interested, please drop me a line: Sepehr Ehsani; sepehr.ehsani[at]utoronto.ca.

=== Innovation and Technological Progress ===

I noticed that a number of people mentioned that they were interested in some way in relation to innovation. I was wondering if anyone was interested in a project looking at how particular technologies progress over time and whether charting the form of successful (and/or unsuccessful) previous technologies such as the transistor, fission reactor, mobile phone, etc. in terms of either price, efficiency, or some other variable may be useful in predicting whether a current technology such as solar PV, fuel cell, or something else is following a similar trajectory. Other possible ideas might be to look at using patent, publication, or collaboration network data to reveal certain features of innovation that are not captured by other statistics, particularly for technologies that have yet to reach the market. SFI Professor Doyne Farmer has looked at some of this already in 'The Role of Design Complexity in Technology Improvement', see link: http://adsabs.harvard.edu/abs/2009arXiv0907.0036M

This could be a jumping off point for some ideas on data, methods, models etc. Just throwing the idea out there and it's welcome to completely change but if you're interested, message me (Gareth Haslam) haslam [at] ias.unu.edu or find me in class. [[Innovation Group Project]]

=== Space, Stochasticity, Stability; Speciation? ===

[http://tuvalu.santafe.edu/events/workshops/index.php/Xue_Feng Xue], [http://tuvalu.santafe.edu/events/workshops/index.php/Chloe_Lewis Chloe] and [http://tuvalu.santafe.edu/events/workshops/index.php/Xiaoli_Dong Xiaoli]are all working in ecosystems that experience_ a lot of unpredictability in a limiting ecosystem variables (water and/or nutrients); we see patchiness in space and time in how organisms are arranged; and we have some ideas about how the stochasticity may cause the spatial arrangements. [http://tuvalu.santafe.edu/events/workshops/index.php/Si_Tang Si] is working on the stability and robustness of ecosystems.

With enough time, this is likely to involve speciation either to express different strategies, or as a result of spatial separation.

The [[Spatial-Stochastic]] group is writing up their ideas to share here and look for overlap and coupling.

==== Entrenchment and rhythms ====

One idea that I had was to look at the entrenchment properties of various systems. This is an universal phenomena that arises from nonlinear mechanisms interacting with a fluctuation environment and appears most often in animal and plant physiological rhythms (e.g. circadian rhythms, sleep cycles) and result in predictable oscillations that can also sometimes be forced into stable/unstable states by noise (in the case of humans, this can result in disease). I would like to see if there are any mechanisms that produce similar behavior at the ecosystem level based on structural or species/functional diversity, especially in climates where the energy/water input is non-uniform. The "noise" in this case could be natural or anthropogenic disturbances. I think this can be generalized into many different types of systems. If you have an idea on this, please shoot me an email at xue.feng@duke.edu

=== Plasticity in Neural Networks ===
I've done some modeling which shows that the amount of genetic variation that accumulates at any particular metabolic gene (enzyme) in a population at any given time is a function of the network topology in which the gene is embedded, as well as the distance of the network output from an optimum. So, for instance, in a linear metabolic network, enzymes at the beginning of a pathway will tend to be more constrained (show less variation in the population) than at the end of the pathway. This makes sense given that any changes in those first genes would ripple through the system and have a greater relative effect than mutations in later genes. However, this is only true when a population is already close to an optimum. When far from an optimum, we see the exact opposite trend with more variation in the front of the pathway. This also makes sense - when far from a goal, taking bigger steps gives individuals a better chance of achieving higher fitness. The system as a whole then uses the different relative step sizes according to pathway position to "fine tune" its output.
I think these findings are quite general - at least the model we used was simple enough that it could apply to many different types of directional developmental processes. We can conceptualize these "genes" more generally as sequential steps in a developmental process with some arbitrary goal. These could be steps in a factory assembly line, major product revisions versus minor releases, or (and this is my favorite), neurons learning about their environment. I'm curious what would happen if we took a similar approach to model neural networks. Genetic variation is the raw material for evolution while neural plasticity is the raw material for learning. The question we would be trying to answer is where, within a neural network, would we expect the most plasticity given a particular network topology and distance form a learning goal.
Please contact me (Mark Longo) if this sounds interesting. I'll be available during unstructured time, or you can email mlongo@stanford.edu.
[http://tuvalu.santafe.edu/events/workshops/index.php/Mark_D._Longo]

=== Robustness of complex networks ===
[[File:Zoo.png|thumb|300px|Fig. 1. Zoo of complex networks (an example). Taken from Sol´e and Valverde, 2001.]]
==== Problem statement ====
Complex networks have various properties which can be measured in real networks (WWW, social networks, biological networks), e.g. degree distribution, modularity, hierarchy, assortativity etc. Robustness of complex networks is a big question, however only some progress have been done in this direction. For example, it was shown that the scale-free networks are much more topologically robust to random attacks than random networks. Many people claim that various characteristics of complex networks will influence the robustness interdependently. The question I am interested in is how?

==== Approach ====
The idea is to generate continuous topology space of various complex networks (networks with different modularity, degree distribution, hierarchy etc) and use it to measure their robustness (see Fig. 1). There are many approaches to measure the robustness of complex networks. For example we can remove edges of vertices of a complex network graph and look at the size of a giant cluster. We can discuss other possibilities.

If you are interested you can contact me directly or via my E-mail: krystoferivanov@gmail.com or via my [[Oleksandr Ivanov|discussion page in CSSS 2012 wiki]].

==== Relevant literature ====
* [http://www.barabasilab.com/pubs/CCNR-ALB_Publications/199910-15_Science-Emergence/199910-15_Science-Emergence.pdf BA Scale-free network]
* [http://people.maths.ox.ac.uk/maini/PKM%20publications/195.pdf How to generate Scale-free modular network using preferential attachment]
* [http://www.barabasilab.com/pubs/CCNR-ALB_Publications/200007-27_Nature-ErrorAttack/200007-27_Nature-ErrorAttack.pdf Error and attack tollerance of complex networks]
* [http://www.cis.upenn.edu/~mkearns/teaching/NetworkedLife/hierarchical.pdf Hierarchical organization in complex networks]
* [http://arxiv.org/pdf/cond-mat/0402009v1.pdf Scale-free networks with tunable degree distribution exponents]
* [http://arxiv.org/pdf/cond-mat/0110452v1.pdf Scale free networks with tunable clustering]
* [http://vw.indiana.edu/netsci06/conference/Ng_Structural.pdf Structural Robustness of Complex networks]
* [http://arxiv.org/pdf/cond-mat/0205405.pdf Assortative mixing in networks]
* [http://www.cis.upenn.edu/~mkearns/teaching/NetworkedLife/prefatt.pdf Mean field theory to study scale-free networks]
* [http://www.graphanalysis.org/SIAM-PP08/Leskovic.pdf Kroneker Graphs]
* [http://www.lem.sssup.it/WPLem/files/2011-07.pdf Exact maximum-likelihood method to detect patterns in real networks]
* [http://www-users.york.ac.uk/~lsdc1/SysBiol/kitano.robustness.naturegenetics.2004.pdf Biological robustness]
* [http://arxiv.org/ftp/cond-mat/papers/0202/0202410.pdf Attack vulnerability of complex networks]
* [http://jmvidal.cse.sc.edu/papers/nair11a.pdf Supply Network Topology and Robustness against Disruptions – an investigation using multi agent model]

* Add a relevant paper...

=== Systemic Risk in Financial Networks and/or an ABM of money/liquidity===

'''Systemic Risk in Financial Networks:''' Hypothesis: the motive to diversify risk at the level of the individual agent (i.e., for an agent to increase its connectivity) will increase systemic risk (by systemic risk I mean vulnerability of the system to widespread collapse). Point of departure is the [http://en.wikipedia.org/wiki/Forest-fire_model Forest Fire] model from statistical physics.

Key difference(s) between the physics version of the Forest Fire model, and the "economics" version of the Forest Fire model I have in mind are:
* Tree growth probability (which determines network structure) must be endogenous. Agents must be able to choose which other agents to link with.
* Probability of lightning strikes (i.e., defaults on specific loans) must also be endogenous.

I think that financial networks might exhibit self-organizing criticality in the sense that diversification will reduce the probability of lightning strikes (i.e., defaults), however over time systemic risk builds up as a result of the diversification which means that eventually a small number of lightning strikes might be enough to bring the entire system down.

'''ABM of the emergence of Money:'''
Basically, I would be interested in building an ABM of the emergence of money based around the following economic models of money developed by Nobu Kiyotaki and John Moore:
* [[File:Kiyotaki_and_Moore_(2001).pdf | Evil is the Root of all Money]]
* [[File:Financial-Deepening.pdf | Financial Deepening]]

These models take a broad view of money: "money" is any asset which is widely accepted as a medium of exchange. In these models agents manage projects which require capital investment now in order to generate a return at some point in the future and agents must trade financial promises (think debt contracts) in order to obtain the needed investment. Two key parameters of is these models (which are assumed COMMON to all agents in the above models in order to maintain analytical tractibility) are 0 < theta < 1 and 0 < phi < 1. Theta is the fraction of the future return from the project that an agent can promise to repay in the future in exchange for investment now. Phi is the fraction of the face value of a debt contract (which by construction is a contract between two agents) that can be re-sold to a third agent.

Hypothesis: In an ABM where agents differ in terms of both theta and phi, the promises of only a small number of agents will be widely traded (i.e., will serve as money).

If anyone might be interested in working on these projects, send me and email: drobert.pugh at gmail dot com

=== Price-time dynamics of contracts traded on prediction markets===
Prediction markets have been shown to outperform traditional methods of polls and opinion surveys in forecasting future events. I am interested in exploring the price-time dynamics of contracts traded on prediction markets to better understand how they are able to aggregate individual opinion to establish collective insight.

Several questions that I’m curious to probe further:
* How do ‘information shocks’ generated by news sources influence price-time trajectories?
* Can features of the underlying dynamics be characterized using a simple model?
* What is the minimum number of traders required for an accurate prediction?
On a separate note, I invite you to share your opinion regards whether “China will win the most medals at the 2012 London Olympics”, by logging into the following [https://csss12.inklingmarkets.com/user/login site] (please send me your email address and I will send you the login details).

If you haven't used a prediction market before don't worry -just follow the instructions provided in the site to 'buy' and 'sell' contracts according to your expectation.

If you are interested in the discussing any of the above questions or have other ideas related to prediction markets please get in touch with me at: sanith at mitre dot org

=== Internal models: what do they do and how are they built?===
In the past decade(s) Bayesian statistics has come to dominate empirical science. Consequently, the significance of prior beliefs for guiding inference has become widely accepted. But how do we map the concept of prior beliefs onto natural systems? I argue that the composition of organisms realize internal models of their environment. These internal models manifest as structured behavior, which we scientists describe as reflecting prior beliefs or bias. In humans you have reflexes at one extreme and the influence of memories upon behavior at the other. It is an open question how these internal models are instantiated in biological systems. Are they structural motifs in neural networks? Protein networks within cells? Concepts such as memory, storage, and recall provide relevant bridges between the statistical formulation of these ideas and the physics of computation, but these are jumping off points at best.

My suspicion is that part of the challenge is we don’t have a clear understanding of what benefits internals models impart to organisms beyond some general statement about resolving uncertainty. This is compounded by the fact that we probably wouldn’t recognize an internal model if we saw one. This is why I find work over the past decade upon self-localizing and mapping (SLAM) systems to be so interesting. To my knowledge, these are the first man-made systems designed with the objective of imparting complex internal models to artificial systems. The Mars rover is a SLAM system. The driverless car depends critically upon a SLAM system. The successes, and failures, of these systems have exposed the complexity of functionalities we use so naturally that they evade our notice. These include differentiating between static and dynamic elements of our environment as well as ascribing our sensations to external or internal causes. In the least, the design of these systems offer first order models for what an internal model of non-trivial complexity might look like.

I’m interested in exploring the role of internal models as well as how they are embedded in natural systems. I welcome you to join to me to discuss these ideas in the seminar room after 3 on Wednesday and after 4 on Thursday. Maybe we'll go to the coffee shop if that makes more sense. Feel free to email me at: jlong29@gmail.com (John Long)

=== Rain-Climate-Agriculture Interactions ===

We are trying to think about the influence of different precipitation/climate regimes on farming strategies and crop prices. It is still a very vague idea, and we're meeting at 4:15 in front of the cafeteria to brainstorm a bit (possibly outside). If you're interested in it, you're very welcome to join us! fabio.cresto-aleina@zmaw.de and fgreb@uni-goettingen.de

Complex Systems Summer School 2012-Projects & Working Groups

2012-06-05T03:15:35Z

Dwu: /* "Small Steps" Group */

{{Complex Systems Summer School 2012}}

* nonequilibrium game theory --- my plan is to adapt some SFI-based models, by people like Crutchfield and Farmer, so that they will quantitatively or qualitatively reproduce features of real human data. Meet Seth Frey at dinner on Thursday and Friday.
* Enzyme kinetics – Do enzymes just accelerate equilibrium or play an active role in chemical reactions?
Enzyme networks (e.g. glycolysis) and catalysts in complex mixtures (e.g. Belusov-Zhabotinski reaction) can profoundly influence the outcome of a chemical reaction system. What about a single enzyme? Biochemistry textbooks uniformly say that an enzyme accelerates a reaction without altering its outcome. Yet, the set of differential equations that generically describes enzyme catalysis has remarkable resemblance to the Roessler equations (a textbook example of a non-linear, complex system). With a fixed substrate input or a steady substrate flow, a single enzyme probably cannot affect the reaction outcome. However, sinusoidal or pulsating substrate input, substrate activation or product inhibition, coupling of two enzymes could turn the reaction pattern non-linear. For this project, the sets of equations to study are quite well established – they need to be analyzed. In contrast to some of the more ambitious ideas circulated, this task is exhaustively doable in less than four weeks.
I am Georg Weber. If you are interested in studying this problem, please find me on Tuesday over lunch or dinner (or talk to me at any other unstructured time).
* next idea here

=="Small Steps and Big Ideas" Group==

Complex Systems Summer School 2012-Projects & Working Groups

2012-06-05T03:12:41Z

Dwu:

Daniel Wu

2012-06-04T20:55:19Z

Dwu:

Hi Everyone, I'm very excited about the institute. I would love to meet and work with others who are interested in how computational methods and complex systems can (1) be partnered with qualitative methods, such as participant observation, interview, archival analysis, and case study, (2) shed light on social mechanisms, especially the connections between the economic, cultural, and political, and (3) further social justice and innovation.

I'm interested in how organizations strategize and navigate socio-political institutions, especially within hostile political environments. I'm particularly interested in organizations that change policies, which address the structural roots of urban inequality and build more resilient communities.

In our increasingly privatized state, public policies are not simply implemented by state actors, but are materialized in coordination with private entrepreneurs. These actors must navigate not only economic but also cultural and political realms. I explore how they do so effectively (or ineffectively) and what implications their actions have for public policy as it happens on the ground. To examine these actors and their impacts, I connect micro-level analyses of these organizations with their strategies on political fields.

For my current project, I examine how social benefit corporations, such as nonprofits that develop affordable housing, navigate urban redevelopment politics and innovate their strategies. These actors understand and respond to changing demographic and increasingly hostile contexts. Due to this empirical interest, I draw from social movements/organizations, organizational behavior, and learning theories.

Alfred Hubler's Nonlinear Dynamics Lab 2012

2012-06-03T19:08:37Z

Dwu: /* Monday, June 11, 6:00pm */

{{Complex Systems Summer School 2012}}

==Thursday, June 7, 6:00pm==

1. Sarah Tweedt 
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==Friday, June 8 7:00am==
PLEASE NOTE THAT THIS IS AN EARLY MORNING CLASS! 
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==Monday, June 11, 6:00pm==
1. Hidetoshi Inamine 
2. Dan Wu 
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==Tuesday, June 12, 6:00pm==
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Alfred Hubler's Nonlinear Dynamics Lab 2012

2012-06-03T19:08:25Z

Dwu: /* Tuesday, June 12, 6:00pm */

{{Complex Systems Summer School 2012}}

==Thursday, June 7, 6:00pm==

1. Sarah Tweedt 
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==Friday, June 8 7:00am==
PLEASE NOTE THAT THIS IS AN EARLY MORNING CLASS! 
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==Monday, June 11, 6:00pm==
1. Hidetoshi Inamine 
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==Tuesday, June 12, 6:00pm==
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Alfred Hubler's Nonlinear Dynamics Lab 2012

2012-06-03T19:08:10Z

Dwu: /* Tuesday, June 12, 6:00pm */

{{Complex Systems Summer School 2012}}

==Thursday, June 7, 6:00pm==

1. Sarah Tweedt 
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==Friday, June 8 7:00am==
PLEASE NOTE THAT THIS IS AN EARLY MORNING CLASS! 
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==Monday, June 11, 6:00pm==
1. Hidetoshi Inamine 
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==Tuesday, June 12, 6:00pm==
1. Dan Wu

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Alfred Hubler's Nonlinear Dynamics Lab 2012

2012-06-03T19:07:58Z

Dwu: /* Tuesday, June 12, 6:00pm */

{{Complex Systems Summer School 2012}}

==Thursday, June 7, 6:00pm==

1. Sarah Tweedt 
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3. 
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5. 
6. 
7. 
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==Friday, June 8 7:00am==
PLEASE NOTE THAT THIS IS AN EARLY MORNING CLASS! 
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==Monday, June 11, 6:00pm==
1. Hidetoshi Inamine 
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==Tuesday, June 12, 6:00pm==
1. Dan Wu
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Daniel Wu

2012-05-28T20:25:29Z

Dwu:

Hi Everyone, I'm very excited about the institute. I'm looking forward to learning about the questions, conversations, methods, and theories that other disciplines draw from and how complex systems helps us understand all of these! Academic communities, after all, are complex too. I would love to meet and work with others who are interested in how computational methods and complex systems can (1) be partnered with qualitative methods, such as participant observation, interview, archival analysis, and case study, (2) shed light on social mechanisms, especially the connections between the economic, cultural, and political, and (3) better society.

I'm interested in how organizations strategize and navigate socio-political institutions in order to implement and change policies that address the structural roots of urban inequality and build more resilient communities.

In our increasingly privatized state, public policies are not simply implemented by state actors, but are materialized in coordination with private entrepreneurs. These actors must navigate not only economic but also cultural and political realms. I explore how they do so effectively (or ineffectively) and what implications their actions have for public policy as it happens on the ground. To examine these actors and their impacts, I connect micro-level analyses of these organizations with their strategies on political fields. For my current project, I examine how social benefit corporations, such as nonprofits that develop affordable housing, navigate urban redevelopment politics and innovate their strategies. These actors understand and respond to changing demographic and increasingly hostile contexts. Due to this empirical interest, I draw from social movements/organizations, organizational behavior, and learning theories.

Daniel Wu

2012-05-28T20:24:17Z

Dwu:

Hi Everyone, I'm very excited about the institute. I'm looking forward to learning about the questions, conversations, methods, and theories that other disciplines draw from and how complex systems helps us understand all of these! Academic communities, after all, are complex too. I would love to meet and work with others who are interested in how computational methods and complex systems can (1) be partnered with qualitative methods, such as participant observation, interview, archival analysis, and case study, (2) shed light on social mechanisms, especially the connections between the economic, cultural, and political, and (3) better society.

How do organizations strategize and navigate socio-political institutions in order to implement and change policies that address the structural roots of urban inequality and build more resilient communities?

In our increasingly privatized state, public policies are not simply implemented by state actors, but are materialized in coordination with private entrepreneurs. These actors must navigate not only economic but also cultural and political realms. I explore how they do so effectively (or ineffectively) and what implications their actions have for public policy as it happens on the ground. To examine these actors and their impacts, I connect micro-level analyses of these organizations with their strategies on political fields. For my current project, I examine how social benefit corporations, such as nonprofits that develop affordable housing, navigate urban redevelopment politics and innovate their strategies. These actors understand and respond to changing demographic and increasingly hostile contexts. Due to this empirical interest, I draw from social movements/organizations, organizational behavior, and learning theories.

Daniel Wu

2012-05-28T20:22:37Z

Dwu:

Hi Everyone, I'm very excited about the institute. I'm looking forward to learning about the questions, conversations, methods, and theories that other disciplines draw from and how complex systems helps us understand all of these! Academic communities, after all, are complex too. I would love to meet and work with others who are interested in how computational and complex systems can help us understand social mechanisms and better society.

How do organizations strategize and navigate socio-political institutions in order to implement and change policies that address the structural roots of urban inequality and build more resilient communities?

In our increasingly privatized state, public policies are not simply implemented by state actors, but are materialized in coordination with private entrepreneurs. These actors must navigate not only economic but also cultural and political realms. I explore how they do so effectively (or ineffectively) and what implications their actions have for public policy as it happens on the ground. To examine these actors and their impacts, I connect micro-level analyses of these organizations with their strategies on political fields. For my current project, I examine how social benefit corporations, such as nonprofits that develop affordable housing, navigate urban redevelopment politics and innovate their strategies. These actors understand and respond to changing demographic and increasingly hostile contexts. Due to this empirical interest, I draw from social movements/organizations, organizational behavior, and learning theories.

Daniel Wu

2012-05-28T20:21:59Z

Dwu: Created page with 'Hi Everyone, I'm very excited about the institute. I'm looking forward to learning about the questions, conversations, methods, and theories that other disciplines draw from and …'

Hi Everyone, I'm very excited about the institute. I'm looking forward to learning about the questions, conversations, methods, and theories that other disciplines draw from and how complex systems helps us understand all of these! Academic communities, after all, are complex too. I would love to meet and work with others who are interested in how computational and complex systems can help us understand social mechanisms and better society.

How do organizations strategize and navigate socio-political institutions in order to implement and change policies that address the structural roots of urban inequality and build more resilient communities?

In our increasingly privatized state, public policies are not simply implemented by state actors, but are materialized in coordination with private entrepreneurs. These actors must navigate not only economic but also cultural and political realms. I explore how they do so effectively (or ineffectively) and what implications their actions have for public policy as it happens on the ground. To examine these actors and their impacts, I connect micro-level analyses of these organizations with their strategies on political fields. For my current project, I examine how social benefit corporations, such as nonprofits that develop affordable housing, navigate urban redevelopment politics and innovate their strategies. These actors understand and respond to changing demographic and increasingly hostile contexts. Due to this empirical interest, I draw from social movements/organizations, organizational behavior, and learning theories.