IEICE Transactions on Information and Systems
Online ISSN : 1745-1361
Print ISSN : 0916-8532
Special Section on Data Engineering and Information Management
How to Combine Translation Probabilities and Question Expansion for Question Classification in cQA Services
Kyoungman BAEYoungjoong KO
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2016 Volume E99.D Issue 4 Pages 1019-1022


This paper claims to use a new question expansion method for question classification in cQA services. The input questions consist of only a question whereas training data do a pair of question and answer. Thus they cannot provide enough information for good classification in many cases. Since the answer is strongly associated with the input questions, we try to create a pseudo answer to expand each input question. Translation probabilities between questions and answers and a pseudo relevant feedback technique are used to generate the pseudo answer. As a result, we obtain the significant improved performances when two approaches are effectively combined.

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© 2016 The Institute of Electronics, Information and Communication Engineers
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