Chinese Automatic Question Answering System of Specific-domain Based on Vector Space Model

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  • Hu Haiqing
    Department of Information Science and Intelligent Systems, Faculty of Engineering, The University of Tokushima
  • Ren Fuji
    Department of Information Science and Intelligent Systems, Faculty of Engineering, The University of Tokushima
  • Kuroiwa Shingo
    Department of Information Science and Intelligent Systems, Faculty of Engineering, The University of Tokushima

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  • ベクトル空間モデルに基づく特定領域向け中国語質問応答システムの構築
  • ベクトル クウカン モデル ニ モトヅク トクテイ リョウイキ ムケ チュウゴクゴ シツモン オウトウ システム ノ コウチク

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In order to meet the demand to acquire necessary information efficiently from large electronic text, the Question and Answering (QA) technology to show a clear reply automatically to a question asked in the user's natural language has widely attracted attention in recent years. Although the research of QA system in China is later than that in western countries and Japan, it has attracted more and more attention recently. In this paper, we propose a Question-Answering construction, which synthesizes the answer retrieval to the questions asked most frequently based on common knowledge, and the document retrieval concerning sightseeing information. In order to improve reply accuracy, one must consider the synthetic model based on statistic VSM and the shallow semantic analysis, and the domain is limited to sightseeing information. A Chinese QA system about sightseeing based on the proposed method has been built. The result is obtained by evaluation experiments, where high accuracy can be achieved when the results of retrieval were regarded as correct, if the correct answer appeared among those of the top three resemblance degree. The experiments proved the efficiency of our method and it is feasible to develop Question-Answering technology based on this method.

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