Paper: Name Phylogeny: A Generative Model of String Variation

ACL ID D12-1032
Title Name Phylogeny: A Generative Model of String Variation
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2012
Authors

Many linguistic and textual processes involve transduc- tion of strings. We show how to learn a stochastic trans- ducer from an unorganized collection of strings (rather than string pairs). The role of the transducer is to orga- nize the collection. Our generative model explains simi- larities among the strings by supposing that some strings in the collection were not generated ab initio, but were in- stead derived by transduction from other, ?similar? strings in the collection. Our variational EM learning algorithm alternately reestimates this phylogeny and the transducer parameters. The final learned transducer can quickly link any test name into the final phylogeny, thereby locating variants of the test name. We find that our method can effectively find name variants in a corpus of web ...