Induction of Treebank-Aligned Lexical Resources

We describe the induction of lexical resources from unannotated corpora that are aligned with treebank grammars, providing a systematic correspondence between features in the lexical resource and a treebank syntactic resource. We first describe a methodology based on parsing technology for augmenting a treebank database with linguistic features. A PCFG containing these features is created from the augmented treebank. We then use a procedure based on the inside-outside algorithm to learn lexical resources aligned with the treebank PCFG from large unannotated corpora. The method has been applied in creating a feature-annotated English treebank based on the

• Type: Conference
• Year: 2008
• Where: LREC
• Authors: Tejaswini Deoskar, Mats Rooth
• Keywords: Education, Lexical Resources, LREC 2008, Treebank, Treebank Syntactic Resource