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| S-CBR:基于数据库模式展现数据库关键词检索结果 |
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彭朝晖1,2,3, 张俊1,2,4, 王珊1,2
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1.中国人民大学 信息学院,北京 100872;2.教育部数据工程与知识工程重点实验室,北京 100872;3.山东大学 计算机科学与技术学院,山东 济南 250014;4.大连海事大学 计算机科学与技术学院,辽宁 大连 116026
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| 摘要: |
| 提出一种基于数据库模式的数据库关键词检索结果展现方法S-CBR(schema-based classification, browsing and retrieving),包括结果分类、用户浏览和再次检索3个过程.S-CBR首先利用数据库模式和查询关键词自动产生第一级类别,将检索结果分配到各个类中;对于比较大的类,按关键词节点内容进行第二级分类;另外赋给每个类别一个类别描述,并将类别描述和每个结果图形化地展现出来,使用户容易阅读和理解检索结果.用户还可以根据S-CBR提供的结果类别模式信息对感兴趣的类别作进一步检索,以尽快找到所需结果或获取更多的相关结果.实验证明了S-CBR方法的有效性. |
| 关键词: 分类 结果展现 数据库关键词检索 数据库模式 启发式检索 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60473069, 60496325 (国家自然科学基金) |
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| S-CBR: Presenting Results of Keyword Search over Databases Based on Database Schema |
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PENG Zhao-Hui,ZHANG Jun,WANG Shan
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| Abstract: |
| In this paper, a result presentation method of keyword search over databases named S-CBR (schema-based classification, browsing and retrieving) which includes three phases of result classification, user browsing, and retrieving is proposed. Firstly, S-CBR uses database schema and query keywords to produce the first-level classes automatically and classify results into them. For large classes, it further partitions them based on the content of keyword nodes. Furthermore, S-CBR gives each class a readable description, and presents the description and each result graphically to help users understand the results easily. Users also can retrieve the class which they are interested in based on the information of the first-level classes to find the results they need or acquire more relevant results. Experimental results verify the method's effectiveness and efficiency. |
| Key words: classification result presentation keyword search over database database schema heuristic search |
