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» On antimagic directed graphs
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DAM
2000
137views more  DAM 2000»
15 years 7 months ago
Solving the feedback vertex set problem on undirected graphs
Feedback problems consist of removing a minimal number of vertices of a directed or undirected graph in order to make it acyclic. The problem is known to be NPcomplete. In this pa...
Lorenzo Brunetta, Francesco Maffioli, Marco Trubia...
178
Voted
AAAI
2008
15 years 9 months ago
Fast Planning by Search in Domain Transition Graph
Recent advances in classical planning have used the SAS+ formalism, and several effective heuristics have been developed based on the SAS+ formalism. Comparing to the traditional ...
Yixin Chen, Ruoyun Huang, Weixiong Zhang
KRDB
1998
83views Database» more  KRDB 1998»
15 years 8 months ago
Semantic Query Optimisation and Rule Graphs
Previous researchers note the problem for semantic optimisation of database queries caused by its production of a large number of semantically equivalent alternative queries, from...
Jerome Robinson, Barry G. T. Lowden
197
Voted
DAM
2010
81views more  DAM 2010»
15 years 7 months ago
The k-in-a-tree problem for graphs of girth at least k
For all integers k 3, we give an O(n4 ) time algorithm for the problem whose instance is a graph G of girth at least k together with k vertices and whose question is "Does G...
W. Liu, Nicolas Trotignon
177
Voted
AAAI
2007
15 years 9 months ago
Allocating Goods on a Graph to Eliminate Envy
We introduce a distributed negotiation framework for multiagent resource allocation where interactions between agents are limited by a graph defining a negotiation topology. A gr...
Yann Chevaleyre, Ulrich Endriss, Nicolas Maudet