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» New Approximation Results for Resource Replication Problems
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JCP
2008
120views more  JCP 2008»
13 years 5 months ago
Multimedia Resource Replication Strategy for a Pervasive Peer-to-Peer Environment
The computer world is experiencing a paradigm shift towards context-aware pervasive computing, where diverse computer devices communicate with each other through different network ...
Letian Rong
IPL
2002
118views more  IPL 2002»
13 years 5 months ago
Differential approximation results for the traveling salesman and related problems
This paper deals with the problem of constructing a Hamiltonian cycle of optimal weight, called TSP. We show that TSP is 2/3-differential approximable and can not be differential a...
Jérôme Monnot
DAM
2010
112views more  DAM 2010»
13 years 5 months ago
New results on optimizing rooted triplets consistency
Abstract. A set of phylogenetic trees with overlapping leaf sets is consistent if it can be merged without conflicts into a supertree. In this paper, we study the polynomial-time a...
Jaroslaw Byrka, Sylvain Guillemot, Jesper Jansson
ACL
2010
13 years 3 months ago
Temporal Information Processing of a New Language: Fast Porting with Minimal Resources
We describe the semi-automatic adaptation of a TimeML annotated corpus from English to Portuguese, a language for which TimeML annotated data was not available yet. In order to va...
Francisco Costa, António Branco
SIGMOD
1996
ACM
176views Database» more  SIGMOD 1996»
13 years 9 months ago
The Dangers of Replication and a Solution
: Update anywhere-anytime-anyway transactional replication has unstable behavior as the workload scales up: a ten-fold increase in nodes and traffic gives a thousand fold increase ...
Jim Gray, Pat Helland, Patrick E. O'Neil, Dennis S...