Previous Conferences & Workshops

Apr
04
2012

Workshop on Topology: Identifying Order in Complex Systems

Self-Assembly of Spherical Colloidal Particles at Low N
Natalie Arkus
4:00pm|David Rittenhouse Lab.(Room A-8), University of Pennsylvania

The number of energetically stable structures that a system of N particles can form grows exponentially with N. Stabilizing any one structure over all others is thus a challenging problem. We consider a system of N spherical colloidal particles that...

Apr
04
2012

Workshop on Topology: Identifying Order in Complex Systems

Hodge Decomposition and Online Ranking on Random Graphs
Lek-Heng Lim
2:30pm|David Rittenhouse Lab.(Room A-7), University of Pennsylvania

Suppose a large number of voters have each rated or compared a small subset of a large number of alternatives, how could we rank the alternatives based on these data? The rank aggregation problem is fraught with famous difficulties --- Arrow's...