Answer comparison in automated question answering |
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Authors: | Tiphaine Dalmas Bonnie Webber |
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Institution: | aInstitute for Communicating and Collaborative Systems, Division of Informatics, 2 Buccleuch Place, Edinburgh EH8 9LW, UK |
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Abstract: | In the context of Question Answering (QA) on free text, we assess the value of answer comparison and information fusion in handling multiple answers. We report improvements in answer re-ranking using fusion on a set of location questions and show the advantages of considering candidates as allies rather than competitors. We conclude with some observations about answer modeling and evaluation methodology, arising from a more recent experiment with a larger set of questions and a greater diversity of question types and candidates. |
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Keywords: | Question answering Web search Information fusion Clustering Multiple answers Model-view-controller |
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