| 基于规则的智能检索系统推理机制的研究 |
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| 引用本文： | 聂卉.基于规则的智能检索系统推理机制的研究[J].情报学报,2008,27(6). |
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| 作者姓名： | 聂卉 |
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| 作者单位： | 中山大学资讯管理系,广州,510275 |
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| 摘 要： | 本文以数字图书馆的资源检索为应用背景,研究本体支持下的基于规则推理的语义检索机制.在本体知识库支持下,检索系统面向基于本体结构的元数据,依据概念关联及相关推理规则,寻求蕴涵关系,发掘隐含信息.本文从数字图书馆资源的语义关系中提炼出推理规则,并选用正向链推理算法实现推理,基于正向链接的规则推理依照事先定义的规则集,能够从已有事实出发挖掘已存事实中的隐含结论,适用于无确定推理目标且解空间很大的一类推理检索任务.本文通过实例分析验证了这一方法在智能检索系统中应用的可行性,并提出采用先推理后检索的策略解决在面向庞大数据集和复杂推理规则时产生的推理时效问题.
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| 关 键 词： | 本体 智能检索系统 基于规则的推理 |
Research on Rule-based Inference Mechanism of Intelligent Retrieval System |
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| Nie Hui.Research on Rule-based Inference Mechanism of Intelligent Retrieval System[J].Journal of the China Society for Scientific andTechnical Information,2008,27(6). |
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| Authors: | Nie Hui |
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| Institution: | Nie Hui (Department of Information Management,Sun Yat-Sen University,Guangzhou 510275) |
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| Abstract: | With the application in the field of Digital Library,research on rule-based inference mechanism of Retrieval System is performed in the paper.Supported by ontology-based knowledge base,the retrieval system is operated on metadata sets. The implication relationships between concepts and information implied in the metadata base can be obtained by concept relationship and inference rules.Ratiocinative rules are extracted from the semantic relations of Digital Library resources and role- based inference runs in... |
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| Keywords: | ontology intelligent retrieval rule-based inference |
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