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» Tetris is Hard, Even to Approximate
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FOCS
2007
IEEE
14 years 1 months ago
On the Complexity of Nash Equilibria and Other Fixed Points (Extended Abstract)
d Abstract) Kousha Etessami LFCS, School of Informatics University of Edinburgh Mihalis Yannakakis Department of Computer Science Columbia University We reexamine what it means to...
Kousha Etessami, Mihalis Yannakakis
COMPGEOM
2008
ACM
13 years 9 months ago
Maximum thick paths in static and dynamic environments
We consider the problem of finding a maximum number of disjoint paths for unit disks moving amidst static or dynamic obstacles. For the static case we give efficient exact algorit...
Esther M. Arkin, Joseph S. B. Mitchell, Valentin P...
ECCC
2007
147views more  ECCC 2007»
13 years 7 months ago
Inapproximability of edge-disjoint paths and low congestion routing on undirected graphs
In the undirected Edge-Disjoint Paths problem with Congestion (EDPwC), we are given an undirected graph with V nodes, a set of terminal pairs and an integer c. The objective is to...
Matthew Andrews, Julia Chuzhoy, Venkatesan Guruswa...
AI
2011
Springer
13 years 2 months ago
Expressive markets for donating to charities
When donating money to a (say, charitable) cause, it is possible to use the contemplated donation as a bargaining chip to induce other parties interested in the charity to donate ...
Vincent Conitzer, Tuomas Sandholm
ICDE
2007
IEEE
164views Database» more  ICDE 2007»
14 years 1 months ago
An Integer Linear Programming Approach to Database Design
Existing index selection tools rely on heuristics to efficiently search within the large space of alternative solutions and to minimize the overhead of using the query optimizer ...
Stratos Papadomanolakis, Anastassia Ailamaki