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[Semantic Web]OWL Query Language |
Lee 发表于 2006/2/22 23:05:36 |
OWL Query Language (OWL-QL) is a formal language and protocol for a querying agent and an answering agent to use in conducting a query-answering dialogue using knowledge represented in the Ontology Web Language (OWL) . OWL-QL is an updated version of the DAML Query Language (DQL) developed by the Joint United States/European Union ad hoc Agent Markup Language Committee1, and the authors of this paper, who are members of that committee, are the editors of both the
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[Semantic Web]A Brief Introduction to Ian Horrocks |
Lee 发表于 2006/2/22 23:01:12 | Ian Horrocks is a professor in the Department of Computer Science at the University of Manchester. He is a member of the Information Management Group, although he also works with several other groups within the department including Formal Methods and Medical Informatics. His primary research interest is Knowledge Representation; in particular ontologies and ontology languages, tableaux algorithms for Description Logics (DLs), optimization techniques for such algorithms, and the application of al
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[Semantic Web]RDF(S) Storage in Relational Databases |
Lee 发表于 2006/2/22 22:19:50 |
Although there are differences between RDF's graph-based model and the semi-structured model of XML, our work can benefit from the research on storing XML data in relational databases [Florescu and Kossman, 99].
Horizontal DB: Horizontal schema [Agrawal et al., 01] only need one “universal”table in the database. Every individual (instance) falls into one record in the table.While the data model is simple, there are some drawbacks within this approach: large number of columns; limit
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[Semantic Web]用MySQL存储本体  |
Lee 发表于 2006/2/20 14:25:50 | 首先要安装好MySQL服务器,然后建立一个数据库,如OntologyDB。再建立一个用户如OntologyDBUser,并给予其对数据库OntologyDB的所有操作权限。然后下载MySQL的JDBC驱动程序mysql-connector-java-3.1.12.zip,解压后将其中的mysql-connector-java-3.1.12-bin.jar改名为Driver.jar并将其COPY到Protege 3.1的安装目录中。
进入Protege,打开本体工程文件,然后选择文件菜单中的Convert Project to Format,选择在弹出的对话框中选择OWL Database。然后在弹出的对话框中按如下内容填写:
Project ---- 项目名称,自己定;
JDBC Driver Class Name ---- com.mysql.jdbc.Driver
JDBC URL ---- jdbc:mysql://localhost/
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Blog 信 息 |
blog名称:风落沙 日志总数:348 评论数量:550 留言数量:52 访问次数:1589068 建立时间:2005年1月28日 |
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友 情 连 接 |

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