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» Engineering Algorithms for Approximate Weighted Matching
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ISAAC
2004
Springer
141views Algorithms» more  ISAAC 2004»
14 years 3 months ago
Weighted Coloring on Planar, Bipartite and Split Graphs: Complexity and Improved Approximation
We study complexity and approximation of min weighted node coloring in planar, bipartite and split graphs. We show that this problem is NP-complete in planar graphs, even if they a...
Jérôme Monnot, Vangelis Th. Paschos, ...
ISAAC
2001
Springer
98views Algorithms» more  ISAAC 2001»
14 years 2 months ago
Fragmentary Pattern Matching: Complexity, Algorithms and Applications for Analyzing Classic Literary Works
A fragmentary pattern is a multiset of non-empty strings, and it matches a string w if all the strings in it occur within w without any overlaps. We study some fundamental issues o...
Hideaki Hori, Shinichi Shimozono, Masayuki Takeda,...
WWW
2006
ACM
14 years 10 months ago
Random sampling from a search engine's index
We revisit a problem introduced by Bharat and Broder almost a decade ago: how to sample random pages from the corpus of documents indexed by a search engine, using only the search...
Ziv Bar-Yossef, Maxim Gurevich
ESA
2005
Springer
105views Algorithms» more  ESA 2005»
14 years 3 months ago
Matching Point Sets with Respect to the Earth Mover's Distance
Let A and B be two sets of m resp. n weighted points in the plane, with m ≤ n. We present (1 + ) and (2+ )-approximation algorithms for the minimum Euclidean Earth Mover’s Dis...
Sergio Cabello, Panos Giannopoulos, Christian Knau...
ISPAN
1997
IEEE
14 years 2 months ago
RMESH Algorithms for Parallel String Matching
Abstract- String matching problem received much attention over the years due to its importance in various applications such as text/file comparison, DNA sequencing, search engines,...
Hsi-Chieh Lee, Fikret Erçal