Paper: Event-Based Hyperspace Analogue to Language for Query Expansion

ACL ID P10-2022
Title Event-Based Hyperspace Analogue to Language for Query Expansion
Venue Annual Meeting of the Association of Computational Linguistics
Session Short Paper
Year 2010
Authors

Bag-of-words approaches to information retrieval (IR) are effective but assume in- dependence between words. The Hy- perspace Analogue to Language (HAL) is a cognitively motivated and validated semantic space model that captures sta- tistical dependencies between words by considering their co-occurrences in a sur- rounding window of text. HAL has been successfully applied to query expansion in IR, but has several limitations, including high processing cost and use of distribu- tional statistics that do not exploit syn- tax. In this paper, we pursue two methods for incorporating syntactic-semantic infor- mation from textual ‘events’ into HAL. We build the HAL space directly from events to investigate whether processing costs can be reduced through more careful definition of word co-occu...