TY - JOUR ID - 72007 TI - Boosting Passage Retrieval through Reuse in Question Answering JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Hassanpour, Hamid AD - Y1 - 2012 PY - 2012 VL - 25 IS - 3 SP - 187 EP - 196 KW - Question Answering KW - Information Retrieval KW - Reuse KW - Passage Retrieval KW - Discourse Processing DO - N2 - Question Answering (QA) is an emerging important field in Information Retrieval. In a QA system the archive of previous questions asked from the system makes a collection full of useful factual nuggets. This paper makes an initial attempt to investigate the reuse of facts contained in the archive of previous questions to help and gain performance in answering future related factoid questions. It models the role of facts in questions through discourse transition of user question answering process, and presents approaches to identify and extract these facts with the help of lexical semantic resources. Strategies to implement the reuse of facts to boost query generation in the passage retrieval stage of a QA system as well as ideas on system evaluation are discussed. UR - https://www.ije.ir/article_72007.html L1 - https://www.ije.ir/article_72007_dedea0f8ae9cdd3fd7673929d76fd757.pdf ER -