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» Obstacle Numbers of Graphs
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FOCS
2000
IEEE
15 years 9 months ago
A polylogarithmic approximation of the minimum bisection
A bisection of a graph with n vertices is a partition of its vertices into two sets, each of size n/2. The bisection cost is the number of edges connecting the two sets. The proble...
Uriel Feige, Robert Krauthgamer
146
Voted
DAGSTUHL
2000
15 years 6 months ago
Presenting Data from Experiments in Algorithmics
Algorithmic experiments yield large amounts of data that depends on many parameters. This paper collects a number of rules for presenting this data in concise, meaningful, understa...
Peter Sanders
CORR
2008
Springer
133views Education» more  CORR 2008»
15 years 5 months ago
A simple local 3-approximation algorithm for vertex cover
We present a local algorithm (constant-time distributed algorithm) for finding a 3-approximate vertex cover in bounded-degree graphs. The algorithm is deterministic, and no auxili...
Valentin Polishchuk, Jukka Suomela
87
Voted
DAM
2006
73views more  DAM 2006»
15 years 5 months ago
Construction of sports schedules with multiple venues
A graph theoretical model is presented for constructing calendars for sports leagues where balancing requirement have to be considered with respect to the different venues where c...
Dominique de Werra, Tinaz Ekim, C. Raess
143
Voted
JCT
2008
85views more  JCT 2008»
15 years 5 months ago
Smith normal form and Laplacians
Let M denote the Laplacian matrix of a graph G. Associated with G is a finite group (G), obtained from the Smith normal form of M, and whose order is the number of spanning trees o...
Dino J. Lorenzini