Title
Generalized graph clustering: recognizing (p, q)-cluster graphs
Abstract
CLUSTER EDITING is a classical graph theoretic approach to tackle the problem of data set clustering: it consists of modifying a similarity graph into a disjoint union of cliques, i.e, clusters. As pointed out in a number of recent papers, the cluster editing model is too rigid to capture common features of real data sets. Several generalizations have thereby been proposed. In this paper, we introduce (p, q)-cluster graphs, where each cluster misses at most p edges to be a clique, and there are at most q edges between a cluster and other clusters. Our generalization is the first one that allows a large number of false positives and negatives in total, while bounding the number of these locally for each cluster by p and q. We show that recognizing (p, q)-cluster graphs is NP-complete when p and q are input. On the positive side, we show that (0, q)-cluster, (p, 1)-cluster, (p, 2)-cluster, and (1, 3)-cluster graphs can be recognized in polynomial time.
Year
DOI
Venue
2010
10.1007/978-3-642-16926-7_17
WG
Keywords
Field
DocType
classical graph theoretic approach,q edge,common feature,generalized graph clustering,p edge,cluster graph,similarity graph,large number,cluster editing,cluster editing model
Discrete mathematics,Combinatorics,Clique,Chordal graph,Clique-sum,Cograph,Cluster analysis,Time complexity,Clustering coefficient,Disjoint union,Mathematics
Conference
Volume
ISSN
ISBN
6410
0302-9743
3-642-16925-2
Citations 
PageRank 
References 
4
0.44
19
Authors
5
Name
Order
Citations
PageRank
Pinar Heggernes184572.39
Daniel Lokshtanov21438110.05
Jesper Nederlof329424.22
Christophe Paul473353.98
Jan Arne Telle585180.13