| 问答系统中复杂类问题的分析方法研究 |
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| 引用本文： | 刘磊,郭丽,白宇,蔡东风.问答系统中复杂类问题的分析方法研究[J].沈阳航空工业学院学报,2009,26(3):82-85. |
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| 作者姓名： | 刘磊 郭丽 白宇 蔡东风 |
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| 作者单位： | 沈阳航空工业学院知识工程中心,辽宁,沈阳,110034 |
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| 摘 要： | 基于自动构建的问句模板库,对中文复杂类问题进行问题分类和关键词抽取,并提出一种基于在线百科知识和搜索引擎的关键词扩展方法,从而提高了系统的整体表现.实验采用NTCIR-7CCLQA的测试语料,表明该方法的问题分类准确率达88%.关键词的扩展使得系统F值提升了20%.
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| 关 键 词： | 问句模板 关键词扩展 复杂类问题 |
Study on complex question analysis method of question answering system |
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| LIU Lei,GUO Li,BAI Yu,CAI Dong-feng.Study on complex question analysis method of question answering system[J].Journal of Shenyang Institute of Aeronautical Engineering,2009,26(3):82-85. |
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| Authors: | LIU Lei GUO Li BAI Yu CAI Dong-feng |
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| Institution: | Knowledge Engineering center;Shenyang Institute of Aeronautical Engineering;Liaoning Shenyang 110034 |
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| Abstract: | To deal with the Chinese complex questions,this paper introduces a question classification method and extraction based on the question pattern library which is built automatically,and a keywords expansion method is proposed based on online encyclopaedia and searching engine in order to improve the QA system performance.The test corpus of CCLQA in NTCIR-7is used in experiment,and the result shows that the question classification precision is up to 88%,while F-value of QA system improved 20% in case of keywor... |
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| Keywords: | question pattern keywords expansion complex question |
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