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ECAI
2010
Springer
15 years 3 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
JMIV
2006
130views more  JMIV 2006»
15 years 1 months ago
Alternative 2D Shape Representations using the Symmetry Set
Among the many attempts made to represent families of 2D shapes in a simpler way, the Medial Axis (MA) takes a prominent place. Its graphical representation is intuitively appealin...
Arjan Kuijper, Ole Fogh Olsen, Peter J. Giblin, Ma...
TWC
2008
103views more  TWC 2008»
15 years 1 months ago
Semi-Distributed User Relaying Algorithm for Amplify-and-Forward Wireless Relay Networks
In this paper, designing an effective user relaying algorithm, in terms of relay node selection and power allocation, is discussed for amplify-and-forward wireless relay networks. ...
Jun Cai, Xuemin Shen, Jon W. Mark, Attahiru Sule A...
INFOCOM
2010
IEEE
15 years 11 days ago
Practical Scheduling Algorithms for Concurrent Transmissions in Rate-adaptive Wireless Networks
—Optimal scheduling for concurrent transmissions in rate-nonadaptive wireless networks is NP-hard. Optimal scheduling in rate-adaptive wireless networks is even more difficult, ...
Zhe Yang, Lin Cai, Wu-sheng Lu
116
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WIOPT
2010
IEEE
15 years 8 days ago
A contracts-based approach for spectrum sharing among cognitive radios
Abstract—Development of dynamic spectrum access and allocation techniques recently have made feasible the vision of cognitive radio systems. However, a fundamental question arise...
Dileep M. Kalathil, Rahul Jain