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» Improved Exact Algorithms for Counting 3- and 4-Colorings
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FUN
2010
Springer
312views Algorithms» more  FUN 2010»
14 years 1 months ago
On Table Arrangements, Scrabble Freaks, and Jumbled Pattern Matching
Given a string s, the Parikh vector of s, denoted p(s), counts the multiplicity of each character in s. Searching for a match of Parikh vector q (a “jumbled string”) in the tex...
Peter Burcsi, Ferdinando Cicalese, Gabriele Fici, ...
MIR
2006
ACM
162views Multimedia» more  MIR 2006»
14 years 2 months ago
Dynamic similarity search in multi-metric spaces
An important research issue in multimedia databases is the retrieval of similar objects. For most applications in multimedia databases, an exact search is not meaningful. Thus, mu...
Benjamin Bustos, Tomás Skopal
EMNLP
2009
13 years 6 months ago
Enhancement of Lexical Concepts Using Cross-lingual Web Mining
Sets of lexical items sharing a significant aspect of their meaning (concepts) are fundamental in linguistics and NLP. Manual concept compilation is labor intensive, error prone a...
Dmitry Davidov, Ari Rappoport
MOBIHOC
2005
ACM
14 years 8 months ago
Hybrid sensor networks: a small world
In this paper, we investigate the use of limited infrastructure, in the form of wires, for improving the energy efficiency of a wireless sensor network. We call such a sensor netw...
Gaurav Sharma, Ravi Mazumdar
TMC
2010
224views more  TMC 2010»
13 years 7 months ago
Multihop Range-Free Localization in Anisotropic Wireless Sensor Networks: A Pattern-Driven Scheme
—This paper focuses on multihop range-free localization in anisotropic wireless sensor networks. In anisotropic networks, geometric distance between a pair of sensor nodes is not...
Qingjun Xiao, Bin Xiao, Jiannong Cao, Jianping Wan...