| 摘要: |
| 介绍了基于关系数据库的关键词查询问题的研究背景;阐述了解决该问题的两大类方法,即基于数据图的方法和基于模式图的方法,并详细介绍了各种方法的原理以及各自的优缺点;最后展望了未来的研究方向. |
| 关键词: 关键词查询 关系数据库 信息检索 数据图 |
| DOI： |
| 分类号: |
| 基金项目:Supported by the National Natural Science Foundation of China under Grant No.50604012 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant No.2009AA01Z150 (国家高技术研究发展计划(863)) |
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| Keyword Search over Relational Databases |
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LIN Zi-Yu,YANG Dong-Qing,WANG Teng-Jiao,ZHANG Dong-Zhan
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| Abstract: |
| First, the research background of keyword search over relational databases is presented and is followed by a detailed description of two solutions to this problem, i.e., data graph based and schema graph based methods, and a discussion of the principles, advantages and disadvantages of these methods is also mentioned. Finally, some future trends in this area are discussed. |
| Key words: keyword search relational database information retrieval data graph |
