图 书 馆
sparql 1.1联合扩展的语义和优化Semantics and optimization of the SPARQL 1.1 federation extension |
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| 课程网址: | http://videolectures.net/eswc2011_corcho_extension/ |
| 主讲教师: | Maria Esther Vidal, Oscar Corcho |
| 开课单位: | 西蒙玻利瓦尔大学 |
| 开课时间: | 2011-07-07 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | The W3C SPARQL working group is defining the new SPARQL 1.1 query language. The current working draft of SPARQL 1.1 focuses mainly on the description of the language. In this paper, we provide a formalization of the syntax and semantics of the SPARQL 1.1 federation extension, an important fragment of the language that has not yet received much attention. Besides, we propose optimization techniques for this fragment, provide an implementation of the fragment including these techniques, and carry out a series of experiments that show that our optimization procedures could significantly speed up the query evaluation process. |
| 关 键 词: | 查询语言; 语法; 语义形式化 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-04-13：cwx |
| 阅读次数: | 28 |