Paper: Differentiating Homonymy And Polysemy In Information Retrieval

ACL ID H05-1051
Title Differentiating Homonymy And Polysemy In Information Retrieval
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2005
Authors

Recent studies into Web retrieval have shown that word sense disambiguation can increase retrieval effectiveness. How- ever, it remains unclear as to the mini- mum disambiguation accuracy required and the granularity with which one must define word sense in order to maximize these benefits. This study answers these questions using a simulation of the effects of ambiguity on information retrieval. It goes beyond previous studies by differen- tiating between homonymy and polysemy. Results show that retrieval is more sensitive to polysemy than ho- monymy and that, when resolving polysemy, accuracy as low as 55% can potentially lead to increased performance.