Paper: Closed Yesterday And Closed Minds: Asking The Right Questions Of The Corpus To Distinguish Thematic From Sentential Relations

ACL ID C92-4212
Title Closed Yesterday And Closed Minds: Asking The Right Questions Of The Corpus To Distinguish Thematic From Sentential Relations
Venue International Conference on Computational Linguistics
Session Main Conference
Year 1992
Authors
  • Uri Zernik (GE Corporate Research & Development, Schenectady NY)

Collocation-based tagging and bracketing pro- graras have attained promising results. Yet, they have not arrived at the stage where they could be used as pre-procezsors for full-fledged parsing. Accuracy is still not high enough. To improve accuracy, it is necessary to inves- tigate the points where statistical data is being misinterpreted, leading to incorrect results. In this paper we investigate inaccuracy which is injected when a pre-processor relies solely on collocations and blurs the distinction between two separate relations: thematic relations and sentential relations. Thematic relations are word pairs, not nec- essarily adjacent, (e.g. , adjourn a meeting) that encode information at the concept level. Sen- tential relations, on the other hand, concern adjacent word pairs that for...