Title
On Effectively Finding Maximal Quasi-cliques in Graphs
Abstract
The problem of finding a maximum clique in a graph is prototypical for many clustering and similarity problems; however, in many real-world scenarios, the classical problem of finding a complete subgraph needs to be relaxed to finding an almost complete subgraph, a so-called quasi-clique . In this work, we demonstrate how two previously existing definitions of quasi-cliques can be unified and how the resulting, more general quasi-clique finding problem can be solved by extending two state-of-the-art stochastic local search algorithms for the classical maximum clique problem. Preliminary results for these algorithms applied to both, artificial and real-world problem instances demonstrate the usefulness of the new quasi-clique definition and the effectiveness of our algorithms.
Year
DOI
Venue
2007
10.1007/978-3-540-92695-5_4
learning and intelligent optimization
Keywords
Field
DocType
general quasi-clique,similarity problem,real-world problem instance,complete subgraph,Effectively Finding Maximal Quasi-cliques,real-world scenario,so-called quasi-clique,new quasi-clique definition,maximum clique,classical problem,classical maximum clique problem
Discrete mathematics,Mathematical optimization,Clique,Maximum common subgraph isomorphism problem,Clique graph,Computer science,Induced subgraph isomorphism problem,Local search (optimization),Clique (graph theory),Clique problem,Subgraph isomorphism problem
Conference
Volume
ISSN
Citations 
5313
0302-9743
24
PageRank 
References 
Authors
1.04
9
3
Name
Order
Citations
PageRank
Mauro Brunato140533.73
Holger H. Hoos25327308.70
Roberto Battiti31937262.40