Meetings 2007
2007-11-27
*Time: 5-7 PM
*Location: Basement of Chambers Hall
*Topic: Social Networks
*Readings: "Social Strucutre from Multiple Networks. I. Blockmodels of Roles and
Positions", Harrison C. White, Scott A. Boorman, Ronald L. Breiger, The
American Journal of Sociology, Vol. 81, No. 4. (Jan., 1976), pp. 730-780
http://links.jstor.org/sici?sici=0002-9602%28197601%2981%3A4%3C730%3ASSFMNI%3E2.0.CO%3B2-O
2007-11-14
*Time: 5-7 PM
*Location: Basement of Chambers Hall
*Topic: Entropy in Linguistics, Economics, and Physics
*Readings: (1) "A simple introduction to Maximum Entropy Models for Natural Language Processing", Adwait Ratnaparkhi, May 1997, Institute for Research in Cognitive Science Technical Report, http://tiger.towson.edu/users/dknopp1/simpl-intro-to-maxent (2) Maximum entropy exchange equilibrium, Duncan K. Foley, May 2002, Work in Progress, http://homepage.newschool.edu/~foleyd/maxentexeq.pdf (3) The backwards arrow of time of the Coherent Bayesian Statistical Mechanics, Cosma Shalizi, November, 2004, http://arxiv.org/PS_cache/cond-mat/pdf/0410/0410063v2.pdf
2007-10-30
*Location: Basement of Chambers Hall
*Topic: Diversity and Entropy
*Readings: (1) "Information theory explanation of the fluctuation theorem, maximum entropy production and self-organized criticality in non-equilibrium stationary states", Roderick Dewar, 2003, J. Phys. A: Math. Gen., v36 p631-641, http://www.iop.org/EJ/abstract/0305-4470/36/3/303/ (2) "Groups of diverse problem solvers can outperform groups of high-ability problem solvers", Lu Hong and Scott Page, 2004, Proceedings of the National Academy of Sciences, v101, n46, p16385-16389, http://www.cscs.umich.edu/~spage/pnas.pdf
2007-10-16
*Location: Basement of Chambers Hall
*Topic: Entropy and its Applications
*Readings: (1) John Whitfield, Complex systems: Order out of chaos, Nature, Volume 436 Number 7053, p905, http://www.nature.com/nature/journal/v436/n7053/full/436905a.html (2) H. Van Dyke Parunak, Sven Brueckner: Entropy and self-organization in multi-agent systems. Agents 2001: 124-130, http://citeseer.ist.psu.edu/378331.html
Summer of 2007
*Location: Prairie Moon
*Reading: Martin Nowak's Evolutionary Dynamics
2007-6-27
*Location: Prairie Moon, 1502 Sherman Ave.
*Topic: What is Evolution?
*Reading: Chapters 1 "Introduction" & 2 "What Evolution Is" from Martin
Nowak's Evolutionary Dynamics.
2007-6-20
*Location: Cozy Noodle, 1018 Davis St.
*Topic: Learning and Graphical Models
*First Reading: "Inferring Cellular Networks Using Probabilistic Graphical Models", Nir Friedman, Science, 2004, http://www.sciencemag.org/cgi/content/abstract/303/5659/799
*Second Reading: "An Introduction to Variational Methods for Graphical Modeling", Michael I. Jordan, Zoubin Ghahramani, Tommi S. Jaakkola and Lawrence K. Saul, Machine Learning, Volume 37, Number 2 / November, 1999, 183-233 (I recommend through page 198), http://www.springerlink.com/index/N811M25287935571.pdf
2007-5-30
*Location: 1800 Club
*Topic: Graphical / Bayesian Models
*First Reading: "Introduction to Inference for Bayesian Networks", Robert Cowell, 1998
http://ccl.northwestern.edu/~wrand/nrg/intro_bayesian_nets.pdf
2007-5-16
*Location: Chambers Hall, Lower Level
*Topic: Information Theory
*First Reading: "Information and Entropy Econometrics--An Editor's View", Amos Golan, Journal of Econometris, 2002, Only read pages 1-16, v107, iss. 1-2, http://www.american.edu/academic.depts/cas/econ/faculty/golan/infoentropy.pdf
*Second Reading: "Induction of Decision Trees", J. R. Quinlan, Machine Learning, v1n1, March, 1986, p81-106, http://www.cs.toronto.edu/~roweis/csc2515/readings/quinlan.pdf
2007-5-2
*Location: Chambers Hall, Lower Level
*Topic: Some Optimization Techniques
*First Reading: "A Genetic Algorithm Tutorial", Darrell Whitley, http://samizdat.mines.edu/ga_tutorial/ga_tutorial.ps
*Second Reading: "Tabu Search: A Tutorial", Fred Glover, Interfaces; Jul/Aug90, Vol. 20 Issue 4, p74-94, http://leeds-faculty.colorado.edu/glover/TS%20-%20Interfaces.pdf
2007-4-18
*Location: Chambers Hall, Lower Level
*Topic: Rugged Landscapes
*First Reading: Kirkpatrick, Gelatt, and Vecchi, Optimization by Simulated Annealing, Science 220, 671-680 (1983).
http://amaral.northwestern.edu/roger/SA.pdf
*Second Reading: Fleming and Sorenson, Technology as a complex adaptive system: evidence from patent data, Research Policy v30 (2001) p1019-1039 http://ccl.northwestern.edu/~wrand/nrg/fleming.pdf
*Third Reading: Kauffman and Levin, Towards a general theory of adaptive walks on rugged landscapes, J. Theor. Biol 128, 11-45 (1987)
http://amaral.northwestern.edu/roger/NK.pdf (first page slightly cut at the bottom)
2007-4-4
*Location: Chambers Hall, Lower Level
*Topic: Dynamical Systems
*First Reading: "Dynamic Pattern Formation: A Primer" J. A. Scott Kelso, Mingzhou Ding and Gregor Schoner (1993), p13-46 from "A Dynamic Systems Approach to Development" Edited by Linda B. Smith and Esther Thelen http://ccl.northwestern.edu/~wrand/nrg/kelso_etal_1993.pdf (p 13-27 our highly recommended)
*Second Reading: "Parsing in a Dynamical System: An Attractor-based Account of the Interaction of Lexical and Structural Constraints in Sentence Processing" Whitney Tabor, Cornell Juliano and Michael K. Tanenhaus (1997), p211-271, Language and Cognitive Processes, v12 (2/3) http://taylorandfrancis.metapress.com/content/lcrx490d5r5mek6x/fulltext.pdf
2007-3-21
*Location: Chambers Hall, Lower Level
*Topic: Self-Organization
*First Reading: "Quantifying Self-Organization with Optimal Predictors." Cosma Shalizi, Kristina Shalizi, and Robert Haslinger. Physical Review Letters, v93, 118701 (2004). http://link.aps.org/doi/10.1103/PhysRevLett.93.118701
- Cyclic CA model here: http://cs.northwestern.edu/~fjs750/models/cyclic-ca.html
*Third Reading: "Self Organization and Coordination", Scott Page, Computational Economics, v18, p25-48, 2001. http://www.springerlink.com/content/v5427h2261g73hj4/
2007-3-7
*Location: Chambers Hall, Lower Level
*Topic: Using statistical techniques in complex systems research
*Zeroth Reading: "The Future of Power-law Research", Michael Mitzenmacher, Internet Mathematics 2(4): 525-528 (only the first 4 pages), http://www.eecs.harvard.edu/~michaelm/postscripts/im2006a.pdf
*First Reading: "Superfamilies of designed and evolved networks", R Milo, S Itzkovitz, N Kashtan, R Levitt, S Shen-Orr, I Ayzenshtat, M Sheffer & U Alon. Science, 303:1538-42 (2004) http://www.weizmann.ac.il/mcb/UriAlon/Papers/Superfamilies_of_Evolved_and_Designed_Networks.pdf
*Second Reading: "Modularity from fluctuations in random graphs and complex networks" Guimera, Sales-Pardo, Amaral. Phys. Rev. E 70, art. no. 025101, 1-4 (2004) http://amaral.northwestern.edu/Publications/Papers/Guimera-2004-Phys.Rev.E-70-025101.pdf
2007-2-21
*Location: Chambers Hall, Lower Level
*Topic: Network Games
*First Reading: "A simple rule for the evolution of cooperation on graphs and social networks", Hisashi Ohtsuki, Christoph Hauert, Erez Lieberman, Martin A. Nowak, 2006 (3 pages), http://www.nature.com/nature/journal/v441/n7092/abs/nature04605.html
*Second Reading: Network Games, Andrea Galeotti, Sanjeev, Goyal, Matthew O. Jackson, Fernando Vega-Redondo, Leeat Yariv, Under Revision, 2006, (45 pages total, but 1-18 covers the basics) http://www.stanford.edu/~jacksonm/networkgames.pdf
2007-2-7
*Location: Chambers Hall, Lower Level
*Topic: Game Theory
*First Reading (1 page): Nash, John (1950) "Equilibrium points in n-person games" Proceedings of the National Academy of the USA 36(1):48-49. http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1063129
*Second Reading (8 pages): "An Introduction to Game Theory", p11-19, Martin J. Osborne, 2002, http://www.chass.utoronto.ca/~osborne/igt/nash.pdf (this section is much longer but pages 11-19 cover most of the material we want to discuss)
*Third Reading (3 pages): Evolutionary game theory. Current Biology, 1999. Karl Sigmund and Michael Nowak
http://www.ped.fas.harvard.edu/people/faculty/publications_nowak/CurBio99a.pdf
2007-1-24
*Location: Chambers Hall, Lower Level
*Topic: Diffusion of Innovation on Networks
*First Reading: "A simple model of global cascades on random networks", Duncan J. Watts, Proceedings of the National Academy of Sciences, April 30, 2002, vol. 99, no. 9, p. 5766-5771 http://www.pnas.org/cgi/content/abstract/99/9/5766
*Second Reading: "Technology as a complex adaptive system: evidence from patent data", Lee Fleming and Olav Sorenson, Research Policy, v30, 2001, 1019-1039, http://www.people.hbs.edu/lfleming/RP2001.pdf
2007-1-10
*Location: Chambers Hall, Ground Floor
*Topic Exploration and Exploitation
*First Reading: "Exploration and Exploitation in Organizational Learning", James G. March, Organization Science, Vol. 2, No. 1, Special Issue: Organizational Learning: Papers in Honor of (and by) James G. March. (1991), pp. 71-87., http://links.jstor.org/sici?sici=1047-7039%281991%292%3A1%3C71%3AEAEIOL%3E2.0.CO%3B2-N
*Second Reading: "Inspiration for optimization from social insect behaviour", E. Bonabeau1, M. Dorigo and G. Theraulaz, Nature 406, 39-42(6 July 2000)
http://www.nature.com/nature/journal/v406/n6791/abs/406039a0.html
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