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Conference Paper
Question Answering Based on Answer Trustworthiness
- Authors
- Hyo Jung Oh, Chung Hee Lee, Yeo Chan Yoon, Myung Gil Jang
- Issue Date
- 2009-10
- Citation
- Asia Information Retrieval Symposium (AIRS) 2009 (LNCS 5839), v.5839, pp.310-317
- Language
- English
- Type
- Conference Paper
- Project Code
- 09MS3100, Development of Web QA(Question Answering) Technology, Jang Myung Gil
- Abstract
- 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.
- KSP Keywords
- Document quality, Trust Factors, model-based, question answering