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학술대회 Question Answering Based on Answer Trustworthiness
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저자
오효정, 이충희, 윤여찬, 장명길
발행일
200910
출처
Asia Information Retrieval Symposium (AIRS) 2009 (LNCS 5839), v.5839, pp.310-317
DOI
https://dx.doi.org/10.1007/978-3-642-04769-5_27
협약과제
09MS3100, 웹 QA 기술개발, 장명길
초록
Nowadays, we are faced with finding "trustworthy" answers not only "relevant" answers. This paper proposes a QA model based on answer trustworthiness. Contrary to the past researches which focused simple trust factors of a document, we identified three different answer trustworthiness factors: 1) incorporating document quality at the document layer; 2) representing the authority and reputation of answer sources at the answer source layer; 3) verifying the answers by consulting various QA systems at the sub-QAs layer. In our experiments, the proposed method using all answer trustworthiness factors shows improvement: 237% (0.150 to 0.506 MRR) for answering effectiveness and 92% (28,993 to 2,293 min.) for indexing efficiency. © 2009 Springer Berlin Heidelberg.
키워드
Answer trustworthiness, Document quality, Question answering
KSP 제안 키워드
Document quality, Trust Factors, model-based, question answering