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NudtMDP at TREC 2015 LiveQA Track

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Conference Paper

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National University of Defense Technology Changsha, Hunan China

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In this paper, we describe a web-based online question answering system which has been evaluated in TREC 2015 Live QA task. Automatic question answering is a classic widely learned technology. TREC have host 8 times QA tracks since 1999. However, the TREC results show that there is still a long way to solve the questions perfectly. LiveQA is kind of questions means asked by real users. Most live QAs are non-factoid questions and it is much more challenge to answer the live QAs than factoid QAs. We build a question answering system to find the answers from web data. The system has two channels, one use search engine to obtain the answers and the other focus on community question answering websites. We finally submit 3 runs in the official test. Two of our runs can perform much better than the avarge scores.

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