Grouping nodes characterized by common network properties
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In our most recent Scientific Reports paper, we show how the visual pattern recognition ability of humans combined with the high processing speed of computers leads to a visual analytics method for discovering groups of nodes characterized by common network properties. Without any prior information about the nature of the groups, the method simultaneously identifies the number of groups, the group assignment, and the properties that define these groups. The results of applying our method to real networks suggest the possibility that most group structures lurk undiscovered in the fast-growing inventory of social, biological, and technological networks of scientific interest. |
Physics & Astronomy Complex Systems Seminars
April 5, 2:00PM, Tech F235
Themistoklis Sapsis - New York University - Dynamics of finite-size particles in general fluid flows
Network Frontier Workshop
The group closed the year by hosting the Network Frontier Workshop. The meeting took place on December 1-2, 2011, and was organized by Jie Sun (Scientific Organizer) and Luciana Zanella (Administrative Organizer).
The two-day event highlighted leading-edge research on the dynamics of complex networks and attracted over 60 participants. Researchers working on innovative aspects of complex systems communicated recent results relevant to fields as diverse as biophysics, energy, and materials research. Sessions included theory and applications of nonlinear dynamics and statistical physics in the context of synchronization, cascades, percolation, control, and failure recovery in interconnected dynamical systems.
The scientific program featured 30 oral presentations. Keynote speakers included Daniel ben-Avraham (Clarkson), Ian Dobson (Iowa State), Marty Golubitsky (Ohio State), Peter Grassberger (Calgary), Kevin M. Lynch (Northwestern), and Edward Ott (Maryland).The closing talk of the Workshop was delivered by Réka Albert (Penn State) and was jointly held with the Physics & Astronomy Colloquium.
The Workshop was sponsored by the Northwestern Institute on Complex Systems and the Weinberg College of Arts and Sciences.
Recent Publications
S.P. Cornelius, J.S. Lee, and A.E. Motter,
Dispensability of Escherichia coli's latent pathways,
Proc. Natl. Acad. Sci. USA 108, 3124 (2011).
doi:10.1073/pnas.1009772108
B. Ravoori, A.B. Cohen, J. Sun, A.E. Motter, T.E. Murphy, and R. Roy,
Robustness of optimal synchronization in real networks,
Phys. Rev. Lett. 107, 034102 (2011).
doi:10.1103/PhysRevLett.107.034102
S. Sahasrabudhe and A.E. Motter,
Rescuing ecosystems from extinction cascades through compensatory perturbations,
Nature Communications 2, 170 doi:10.1038/ncomms1163 (2011).
doi:10.1038/ncomms1163 - PDF - Supplementary Information
T. Nishikawa and A.E. Motter,
Network synchronization landscape reveals compensatory structures, quantization, and the positive effect of negative interactions,
Proc. Natl. Acad. Sci. USA 107, 10342 (2010).
doi:10.1073/pnas.0912444107
Group News
April 2011: Alumni Jinich, Lieber, Lizarraga, and Nicolaou opt for Harvard, U of Chicago, Cornell, and Caltech for graduate school, respectively.
April 2011: Thomas Wytock and Danny Wells are awarded NSF Graduate Research Fellowships.
March 2011: Adilson E. Motter receives NSF CAREER Award.
March 2011: Sascha Herrmann is awarded Goldwater Fellowship.
Selected Press
How Network Theory Can Prevent Extinctions
MIT Technology Review (March 11, 2011)
http://...
Unnatural Selection
Science News (January 26, 2011)
http://...
Mathematical Model Could Help Predict and Prevent Future Extinctions
National Science Foundation (January 25, 2011)
http://...
Oust Species to Save Ecosystems
Nature News (January 25, 2011)
http://...
see also Nature's February 3 Issue.
Chaos: Absolute or Relative?
NU Press Release (September 7, 2010)
http://...
A Delicate Balance: New Study Shows How Networks Keep Themselves in Synch
NU Press Release (May 24, 2010)
http://...
Further Reading
Some important related books.
