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IPL
2000
105views more  IPL 2000»
13 years 7 months ago
Coverings that preserve sense of direction
Sense of direction is a property of labelled networks (i.e., arc-coloured graphs) that allows one to assign coherently local identifiers to other processors on the basis of the ro...
Paolo Boldi, Sebastiano Vigna
LATIN
2010
Springer
14 years 2 months ago
Some Observations on Holographic Algorithms
Abstract. We define the notion of diversity for families of finite functions, and express the limitations of a simple class of holographic algorithms in terms of limitations on d...
Leslie G. Valiant
MOR
2010
113views more  MOR 2010»
13 years 5 months ago
Projecting an Extended Formulation for Mixed-Integer Covers on Bipartite Graphs
We consider the mixed integer version of bipartite vertex cover. This is equivalent to the mixed integer network dual model, recently introduced in [2], that generalizes several m...
Michele Conforti, Laurence A. Wolsey, Giacomo Zamb...
CONSTRAINTS
2007
122views more  CONSTRAINTS 2007»
13 years 7 months ago
Stochastic Local Search Algorithms for Graph Set T -colouring and Frequency Assignment
The graph set T-colouring problem (GSTCP) generalises the classical graph colouring problem; it asks for the assignment of sets of integers to the vertices of a graph such that co...
Marco Chiarandini, Thomas Stützle
TCS
2008
13 years 7 months ago
Approximation algorithms for partially covering with edges
The edge dominating set (EDS) and edge cover (EC) problems are classical graph covering problems in which one seeks a minimum cost collection of edges which covers the edges or ve...
Ojas Parekh