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» Graph Homomorphism Revisited for Graph Matching
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ENTCS
2007
93views more  ENTCS 2007»
13 years 4 months ago
Modeling Pointer Redirection as Cyclic Term-graph Rewriting
We tackle the problem of data-structure rewriting including global and local pointer redirections. Each basic rewrite step may perform three kinds of actions: (i) Local redirectio...
Dominique Duval, Rachid Echahed, Fréd&eacut...
EDBT
2004
ACM
147views Database» more  EDBT 2004»
14 years 4 months ago
Projection Pushing Revisited
The join operation, which combines tuples from multiple relations, is the most fundamental and, typically, the most expensive operation in database queries. The standard approach t...
Benjamin J. McMahan, Guoqiang Pan, Patrick Porter,...
LION
2009
Springer
203views Optimization» more  LION 2009»
13 years 11 months ago
Position-Guided Tabu Search Algorithm for the Graph Coloring Problem
A very undesirable behavior of any heuristic algorithm is to be stuck in some specific parts of the search space, in particular in the basins of attraction of the local optima. Wh...
Daniel Cosmin Porumbel, Jin-Kao Hao, Pascale Kuntz
COMPGEOM
2010
ACM
13 years 9 months ago
Finding shortest non-trivial cycles in directed graphs on surfaces
Let D be a weighted directed graph cellularly embedded in a surface of genus g, orientable or not, possibly with boundary. We describe algorithms to compute a shortest non-contrac...
Sergio Cabello, Éric Colin de Verdiè...
STOC
2010
ACM
228views Algorithms» more  STOC 2010»
13 years 9 months ago
On the searchability of small-world networks with arbitrary underlying structure
Revisiting the “small-world” experiments of the ’60s, Kleinberg observed that individuals are very effective at constructing short chains of acquaintances between any two p...
Pierre Fraigniaud and George Giakkoupis