Paper: Graph-Based Word Clustering Using A Web Search Engine

ACL ID W06-1664
Title Graph-Based Word Clustering Using A Web Search Engine
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2006
Authors

Word clustering is important for automatic thesaurus construction, text classification, and word sense disambiguation. Recently, several studies have reported using the web as a corpus. This paper proposes an unsupervised algorithm for word clus- tering based on a word similarity mea- sure by web counts. Each pair of words is queried to a search engine, which pro- duces a co-occurrence matrix. By calcu- lating the similarity of words, a word co- occurrence graph is obtained. A new kind of graph clustering algorithm called New- man clustering is applied for efficiently identifying word clusters. Evaluations are made on two sets of word groups derived from a web directory and WordNet.