Paper: A Graph Model For Unsupervised Lexical Acquisition

ACL ID C02-1114
Title A Graph Model For Unsupervised Lexical Acquisition
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2002
Authors

Thispaperpresentsanunsupervisedmethodfor assemblingsemanticknowledgefromapart-of- speechtaggedcorpususinggraphalgorithms. The graph model is built by linking pairs of wordswhichparticipateinparticularsyntactic relationships. Wefocusonthesymmetricrela- tionshipbetweenpairsofnounswhichoccurto- getherinlists.Anincrementalcluster-building algorithmusingthispartofthegraphachieves 82%accuracyatalexicalacquisitiontask,eval- uatedagainstWordNetclasses.Themodelnat- urallyrealisesdomainandcorpusspeci cam- biguitiesasdistinctcomponentsinthegraph surroundinganambiguousword.