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» Bounding the Size of k-Tuple Covers
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DCOSS
2005
Springer
15 years 3 months ago
A Distributed Greedy Algorithm for Connected Sensor Cover in Dense Sensor Networks
Abstract. Achieving optimal battery usage and prolonged network lifetime are two of the most fundamental issues in wireless sensor networks. By exploiting node and data redundancy ...
Amitabha Ghosh, Sajal K. Das
DCOSS
2008
Springer
14 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
GECCO
2009
Springer
167views Optimization» more  GECCO 2009»
15 years 4 months ago
Fixed-parameter evolutionary algorithms and the vertex cover problem
In this paper, we consider multi-objective evolutionary algorithms for the Vertex Cover problem in the context of parameterized complexity. We relate the runtime of our algorithms...
Stefan Kratsch, Frank Neumann
STRINGOLOGY
2008
14 years 11 months ago
Conservative String Covering of Indeterminate Strings
Abstract. We study the problem of finding local and global covers as well as seeds in conservative indeterminate strings. An indeterminate string is a sequence T = T[1]T[2] . . . T...
Pavlos Antoniou, Maxime Crochemore, Costas S. Ilio...
SODA
2001
ACM
166views Algorithms» more  SODA 2001»
14 years 11 months ago
Better approximation algorithms for bin covering
Bin covering takes as input a list of items with sizes in (0 1) and places them into bins of unit demand so as to maximize the number of bins whose demand is satis ed. This is in ...
János Csirik, David S. Johnson, Claire Keny...