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» A graph polynomial for independent sets of bipartite graphs
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SMA
2009
ACM
134views Solid Modeling» more  SMA 2009»
15 years 4 months ago
Exact Delaunay graph of smooth convex pseudo-circles: general predicates, and implementation for ellipses
We examine the problem of computing exactly the Delaunay graph (and the dual Voronoi diagram) of a set of, possibly intersecting, smooth convex pseudo-circles in the Euclidean pla...
Ioannis Z. Emiris, Elias P. Tsigaridas, George M. ...
COMBINATORICA
1998
94views more  COMBINATORICA 1998»
14 years 9 months ago
The Shannon Capacity of a Union
For an undirected graph G = (V, E), let Gn denote the graph whose vertex set is V n in which two distinct vertices (u1, u2, . . . , un) and (v1, v2, . . . , vn) are adjacent iff ...
Noga Alon
ECAI
2010
Springer
14 years 11 months ago
Sound and Complete Landmarks for And/Or Graphs
Landmarks for a planning problem are subgoals that are necessarily made true at some point in the execution of any plan. Since verifying that a fact is a landmark is PSPACE-complet...
Emil Keyder, Silvia Richter, Malte Helmert
APPROX
2009
Springer
115views Algorithms» more  APPROX 2009»
15 years 4 months ago
Small Clique Detection and Approximate Nash Equilibria
Recently, Hazan and Krauthgamer showed [12] that if, for a fixed small ε, an ε-best ε-approximate Nash equilibrium can be found in polynomial time in two-player games, then it ...
Lorenz Minder, Dan Vilenchik
KDD
2010
ACM
244views Data Mining» more  KDD 2010»
14 years 8 months ago
Finding effectors in social networks
Assume a network (V, E) where a subset of the nodes in V are active. We consider the problem of selecting a set of k active nodes that best explain the observed activation state, ...
Theodoros Lappas, Evimaria Terzi, Dimitrios Gunopu...