Sciweavers

114 search results - page 6 / 23
» Engineering Algorithms for Approximate Weighted Matching
Sort
View
156
Voted
ISAAC
2004
Springer
141views Algorithms» more  ISAAC 2004»
15 years 10 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»
15 years 9 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
16 years 5 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»
15 years 10 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...
141
Voted
ISPAN
1997
IEEE
15 years 9 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