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» Geometric lower bounds for parametric matroid optimization
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COMPGEOM
2009
ACM
14 years 2 months ago
Coresets for polytope distance
Following recent work of Clarkson, we translate the coreset framework to the problems of finding the point closest to the origin inside a polytope, finding the shortest distance...
Bernd Gärtner, Martin Jaggi
CDC
2009
IEEE
147views Control Systems» more  CDC 2009»
13 years 5 months ago
The asymmetric sinistral/dextral Markov-Dubins problem
Abstract-- We consider a variation of the classical MarkovDubins problem dealing with curvature-constrained, shortest paths in the plane with prescribed initial and terminal positi...
Efstathios Bakolas, Panagiotis Tsiotras
INFOCOM
2010
IEEE
13 years 6 months ago
Making the Case for Random Access Scheduling in Wireless Multi-hop Networks
—This paper formally establishes that random access scheduling schemes, and, more specifically CSMA-CA, yields exceptionally good performance in the context of wireless multihop...
Apoorva Jindal, Ann Arbor, Konstantinos Psounis
SODA
2003
ACM
133views Algorithms» more  SODA 2003»
13 years 9 months ago
Integrality ratio for group Steiner trees and directed steiner trees
The natural relaxation for the Group Steiner Tree problem, as well as for its generalization, the Directed Steiner Tree problem, is a flow-based linear programming relaxation. We...
Eran Halperin, Guy Kortsarz, Robert Krauthgamer, A...
CORR
2004
Springer
103views Education» more  CORR 2004»
13 years 7 months ago
The Freeze-Tag Problem: How to Wake Up a Swarm of Robots
An optimization problem that naturally arises in the study of swarm robotics is the Freeze-Tag Problem (FTP) of how to awaken a set of "asleep" robots, by having an awak...
Esther M. Arkin, Michael A. Bender, Sándor ...