图 书 馆
SPARK：将关键字查询与语义搜索相结合SPARK: Adapting Keyword Query to Semantic Search |
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| 课程网址: | http://videolectures.net/iswc07_zhou_akqss/ |
| 主讲教师: | Qi Zhou |
| 开课单位: | 顶点实验室 |
| 开课时间: | 2008-07-01 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Semantic search promises to provide more accurate result than present-day keyword search. However, progress with semantic search has been delayed due to the complexity of its query languages. In this paper, we explore a novel approach of adapting keywords to querying the semantic web: the approach automatically translates keyword queries into formal logic queries so that end users can use familiar keywords to perform semantic search. A prototype system named ‘SPARK’ has been implemented in light of this approach. Given a keyword query, SPARK outputs a ranked list of SPARQL queries as the translation result. The translation in SPARK consists of three major steps: term mapping, query graph construction and query ranking. Specifically, a probabilistic query ranking model is proposed to select the most likely SPARQL query. In the experiment, SPARK achieved an encouraging translation result. |
| 关 键 词: | 语义搜索; 形式逻辑查询; 排序模型 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-07-31：yumf |
| 阅读次数: | 97 |