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DCOSS
2008
Springer
13 years 11 months ago
Local PTAS for Independent Set and Vertex Cover in Location Aware Unit Disk Graphs
We present the first local approximation schemes for maximum independent set and minimum vertex cover in unit disk graphs. In the graph model we assume that each node knows its geo...
Andreas Wiese, Evangelos Kranakis
AROBOTS
2004
205views more  AROBOTS 2004»
13 years 9 months ago
Building Terrain-Covering Ant Robots: A Feasibility Study
Robotics researchers have studied robots that can follow trails laid by other robots. We, on the other hand, study robots that leave trails in the terrain to cover closed terrain r...
Jonas Svennebring, Sven Koenig
SODA
2004
ACM
144views Algorithms» more  SODA 2004»
13 years 11 months ago
Covering minimum spanning trees of random subgraphs
We consider the problem of finding a sparse set of edges containing the minimum spanning tree (MST) of a random subgraph of G with high probability. The two random models that we ...
Michel X. Goemans, Jan Vondrák
ICIP
2006
IEEE
14 years 11 months ago
Cover Selection for Steganographic Embedding
The primary goal of image steganography techniques has been to maximize embedding rate while minimizing the detectability of the resulting stego images against steganalysis techni...
Mehdi Kharrazi, Taha Taha Sencar, Nasir D. Memon
MST
2007
154views more  MST 2007»
13 years 9 months ago
Crown Structures for Vertex Cover Kernelization
Crown structures in a graph are defined and shown to be useful in kernelization algorithms for the classic vertex cover problem. Two vertex cover kernelization methods are discus...
Faisal N. Abu-Khzam, Michael R. Fellows, Michael A...