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IPSN
2007
Springer
16 years 19 days ago
Approximate isocontours and spatial summaries for sensor networks
We consider the problem of approximating a family of isocontours in a sensor field with a topologically-equivalent family of simple polygons. Our algorithm is simple and distribu...
Sorabh Gandhi, John Hershberger, Subhash Suri
BROADNETS
2005
IEEE
16 years 3 days ago
Performance analysis and enhancement for backbone based wireless mobile ad hoc networks
—In this paper, we present an extended Mobile Backbone Network (MBN) topology synthesis algorithm (ETSA) for constructing and maintaining a dynamic backbone structure in mobile w...
Laura Huei-jiun Ju, Izhak Rubin
FSTTCS
1993
Springer
15 years 10 months ago
Compact Location Problems
We investigate the complexity and approximability of some location problems when two distance values are specified for each pair of potential sites. These problems involve the se...
Venkatesh Radhakrishnan, Sven Oliver Krumke, Madha...
FOCS
1995
IEEE
15 years 10 months ago
Tracking the Best Disjunction
Abstract. Littlestone developed a simple deterministic on-line learning algorithm for learning k-literal disjunctions. This algorithm (called Winnow) keeps one weight for each of t...
Peter Auer, Manfred K. Warmuth
DLT
2008
15 years 8 months ago
Universal Recursively Enumerable Sets of Strings
The present work clarifies the relation between domains of universal machines and r.e. prefix-free supersets of such sets. One such characterisation can be obtained in terms of the...
Cristian S. Calude, André Nies, Ludwig Stai...