| 基于语义核函数的问句检索系统的实现 |
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| 引用本文： | 蔡宇,杨广超.基于语义核函数的问句检索系统的实现[J].情报科学,2011(11). |
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| 作者姓名： | 蔡宇 杨广超 |
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| 作者单位： | 重庆医科大学附属第一医院网络信息中心;重庆大学计算机学院; |
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| 基金项目： | 重庆自然科学基金(CSTC,2008BB2296) |
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| 摘 要： | 本文利用统计翻译模型计算单词之间的语义相似度,并将此语义信息嵌入至核函数,实现了一个基于语义核函数的问句检索系统,利用语义核函数计算问句之间的语义相似度。通过在真实问答对数据上进行的实验,表明基于语义核函数的问句检索模型的效果优于传统的相似度计算模型,可以提高问句语义匹配准确率,具有一定的实用性。
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| 关 键 词： | 核函数 语义信息 问句检索 统计翻译模型 |
Implementation of Semantic Kernel-based Question Retrieval System |
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| CAI Yu,YANG Guang-chao.Implementation of Semantic Kernel-based Question Retrieval System[J].Information Science,2011(11). |
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| Authors: | CAI Yu YANG Guang-chao |
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| Institution: | CAI Yu1,YANG Guang-chao2(1.Web Information Centre,First Affiliated Hospital of Chongqing Medical University,Chongqing 400016,China,2.College of Computer Science,Chongqing University,Chongqing 400044,China) |
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| Abstract: | In this article,we used the statistical translation model to learn the word translation probabilities,and viewed the probabilities as the degree of similarity of words.Then we embedded this information into the kernel function and measure the similarity between questions.The experiment results on a real Q&A data set show that with our approach it is possible to measure the semantic relationship between questions.And our approach outperforms the baseline approaches. |
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| Keywords: | kernel function semantic information question retrieval statistical translation model |
| 本文献已被 CNKI 等数据库收录！ |
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