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DM
2010
128views more  DM 2010»
13 years 11 months ago
Some remarks on the geodetic number of a graph
A set of vertices D of a graph G is geodetic if every vertex of G lies on a shortest path between two not necessarily distinct vertices in D. The geodetic number of G is the minimu...
Mitre Costa Dourado, Fábio Protti, Dieter R...
WWW
2001
ACM
14 years 11 months ago
Finding Related Web Pages Based on Connectivity Information from a Search Engine
This paper proposes a method for finding related Web pages based on connectivity information of hyperlinks. As claimed by Kumar, a complete bipartite graph of Web pages can be reg...
Tsuyoshi Murata
ORL
2008
99views more  ORL 2008»
13 years 11 months ago
Some tractable instances of interval data minmax regret problems
This paper focuses on tractable instances of interval data minmax regret graph problems. More precisely, we provide polynomial and pseudopolynomial algorithms for sets of particul...
Bruno Escoffier, Jérôme Monnot, Olivi...
IACR
2011
166views more  IACR 2011»
12 years 10 months ago
Bicliques for Preimages: Attacks on Skein-512 and the SHA-2 family
We introduce a new concept in splice-and-cut attacks on hash functions, which bridges the gap between preimage attacks and a powerful method of differential cryptanalysis. The ne...
Dmitry Khovratovich, Christian Rechberger, Alexand...
STACS
2004
Springer
14 years 4 months ago
Matching Algorithms Are Fast in Sparse Random Graphs
We present an improved average case analysis of the maximum cardinality matching problem. We show that in a bipartite or general random graph on n vertices, with high probability ...
Holger Bast, Kurt Mehlhorn, Guido Schäfer, Hi...