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New England Complex Systems Institute
238 Main Street Suite 319, Cambridge, MA 02142
Phone: 617-547-4100 Fax: 617-661-7711

From the World Wide Web to neural pathways to the increasingly networked structure of any economy, complex networks have become an integral part of our everyday lives. NECSI research on the structure and dynamics of networks expands our understanding of how biological, social, and technological networked systems behave. Findings relate to the remarkably dynamic structure of social networks, the relationship between structure and function, as well as the sensitivity and robustness of network response to the environment.

Publications, Books & Edited Volumes

A. Herdağdelen, W. Zuo, A.S. Gard-Murray, Y. Bar-Yam, An Exploration of Social Identity: The Geography and Politics of News-Sharing Communities in Twitter, Complexity 19, 10-20 (2013). PDF File

D. Braha, B. Stacey, and Y. Bar-Yam, Corporate competition: A self-organized network. Social Networks. Volume 33. Issue 3. Pages 219-230. July 2011. PDF File

D. Harmon, B. Stacey, Yavni Bar-Yam, and Yaneer Bar-Yam, Networks of Economic Market Interdependence and Systemic Risk. arXiv:1011.3707v2, November 16, 2010. abstract PDF File

S. A. Hill, D. Braha. Dynamic Model of Time-Dependent Complex Networks. Physical Review E. Vol. 82 (4) (2010). PDF File

D. Braha, B. Stacey, Y. Bar-Yam. Corporate Competition: A Self-Organizing Network. NECSI Technical Report 10-3-01. PDF File

R. Cohen, D.J. Dawid, M. Kardar, Y. Bar-Yam. Unusual percolation in simple small-world networks, Phys Rev E. Vol. 79, No. 6 (2009). Full Article

D. Chinellato, M. de Aguiar, I. Epstein, D. Braha, Y. Bar-Yam, Dynamical Response of Networks Under External Perturbations: Exact Results. PDF file

D. Braha, Y. Bar-Yam, The statistical mechanics of complex product development: empirical and analytical results, Management Science 53, 7, 1127-1145 (July, 2007). abstract PDF file press release

M. Lim, D. Braha, S. Wijesinghe, S. Tucker, Y. Bar-Yam, preferential detachment in broadcast signaling networks: connectivity and cost trade-off, Europhysics Letters 79, 58005 (2007). abstract press release PDF file

D. Braha, Y. Bar-Yam, From centrality to temporary fame: dynamic centrality in complex networks, Complexity 12 (2006). abstract, PDF file, Extended Version (PDF), press release

M. A. M. de Aguiar, I. R. Epstein, Y. Bar-Yam, Analytically solvable model of probabilistic network dynamics, Phys Rev E 72, 067102 (2005). PDF file press release

M. A. M. de Aguiar, Y. Bar-Yam, Spectral analysis and the dynamic response of complex networks, Phys Rev E 71, 016106 (2005). PDF file

B. de Bivort, S. Huang, Y. Bar-Yam, Dynamics of cellular level function and regulation derived from murine expression array data, PNAS 101, 17687-92 (2004). PDF file supplemental material, press release

Y. Bar-Yam, I. R. Epstein, Response of complex networks to stimuli, PNAS 101, 4341-5 (2004). PDF file

D. Braha, Y. Bar-Yam, Information Flow Structure in Large-Scale Product Development Organizational Networks, to appear in Smart Business Networks, Peter Vervest, et al Eds. Chap. 8 (Springer Verlag, 2004). PDF file

D. Braha, Y. Bar-Yam, Topology of large-scale engineering problem-solving networks, Phys Rev E 69, 016113-1-7 (2004). PDF file

B. Shargel, H. Sayama, I. R. Epstein, Y. Bar-Yam, Optimization of robustness and connectivity in complex networks, Phys Rev Lett 90, 068701-1-4 (2003). PDF file

Y. Bar-Yam, Dynamics of Complex Systems, Chapter 2 (Perseus, 1997). PDF file

R. Sadr-Lahijany, Y. Bar-Yam, Substructure in Complex Systems and Partially Subdivided Neural Networks I: Stability of Composite Patterns, InterJournal. PDF file

Y. Bar-Yam: Sleep as Temporary Brain Dissociation, NECSI Research Report YB-0005 (1993). PDF file