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Information Extraction Supported Question Answering

by: Rohini Srihari, and Wei Li
In: Proceedings TREC 8 1999 (2000) .
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Abstract

This paper discusses the use of our information extraction IE system, Textract, in the question answering QA track of the recently held TREC-8 tests. One of our major objectives is to examine how IE can help IR Information Retrieval in applications like QA. Our study shows: i IE can provide solid support for QA; ii low-level IE like Named Entity tagging is often a necessary component in handling most types of questions; iii a robust natural language shallow parser provides a structural basis for handling questions; iv high-level domain independent IE, i.e. extraction of multiple relationships and general events, is expected to bring about a breakthrough in QA.

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