Paper: unimelb: Topic Modelling-based Word Sense Induction

ACL ID S13-2051
Title unimelb: Topic Modelling-based Word Sense Induction
Venue Joint Conference on Lexical and Computational Semantics
Year 2013

This paper describes our system for shared task 13 ?Word Sense Induction for Graded and Non-Graded Senses? of SemEval-2013. The task is on word sense induction (WSI), and builds on earlier SemEval WSI tasks in ex- ploring the possibility of multiple senses be- ing compatible to varying degrees with a sin- gle contextual instance: participants are asked to grade senses rather than selecting a sin- gle sense like most word sense disambigua- tion (WSD) settings. The evaluation measures are designed to assess how well a system per- ceives the different senses in a contextual in- stance. We adopt a previously-proposed WSI methodology for the task, which is based on a Hierarchical Dirichlet Process (HDP), a non- parametric topic model. Our system requires no parameter tuning, uses the English uk...