图 书 馆
基于本体的语义搜索关键词解释Ontology-based Interpretation of Keywords for Semantic Search |
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| 课程网址: | http://videolectures.net/iswc07_tran_obi/ |
| 主讲教师: | Thanh Tran |
| 开课单位: | 卡尔斯鲁厄大学 |
| 开课时间: | 2008-01-31 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Current information retrieval (IR) approaches do not formally capture the explicit meaning of a keyword query but provide a comfortable way for the user to specify information needs on the basis of keywords. Ontology-based approaches allow for sophisticated semantic search but impose a query syntax more difficult to handle. In this paper, we present an approach for translating keyword queries to DL conjunctive queries using background knowledge available in ontologies. We present an implementation which shows that this interpretation of keywords can then be used for both exploration of asserted knowledge and for a semantics-based declarative query answering process.We also present an evaluation of our system and a discussion of the limitations of the approach with respect to our underlying assumptions which directly points to issues for future work. |
| 关 键 词: | 信息检索; 关键字查询; 语义搜索 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-04-30：lxf |
| 阅读次数: | 85 |