网格元数据服务中语义元数据的生成和动态管理
designed a new semantic metadata publish-harvest protocol by modifying the OAI-PMH
metadata harvest framework. A new dynamic semantic metadata management system is
then developed according to the above protocol.
By referring the Ontology generator Proté gé, the thesis made an extensible support to
semantic description of resources by implementing a semantic metadata generation
module. The module includes almost all the relational verbs in OWL language and is
implemented with the Jena reasoning machine.
At the end, the thesis makes the conclusion and analysis of the expansibility of the system
and overviews the future work of the system in Web Service and personalized information
retrieval.
Key Words: Metadata Service, Semantic Web, Gird Monitoring Architecture, OAI-PMH,
Ontology
目 录
摘 要 ..............................................................................................................................................1
Abstract.............................................................................................................................................2
1 绪论.............................................................................................................................................5
1.1 研究背景..........................................................................................................................5
1.2 项目背景..........................................................................................................................6
1.3 相关领域的研究现状......................................................................................................6
1.4 本人的工作......................................................................................................................7
2 网格语义元数据服务系统概述.................................................................................................8
2.1 系统架构..........................................................................................................................8
2.2 子系统的设计特色和要点..............................................................................................9
2.2.1 动态元数据管理框架...........................................................................................9
2.2.2 语义元数据生成模块.........................................................................................11
3 动态元数据管理框架的设计和实现.......................................................................................12
3.1 基于网格监控体系结构 GMA 的系统设计.................................................................12
3.2 基于 OAI-PMH 的元数据互操作框架.........................................................................13
3.2.1 OAI-PMH 元数据发布－收割原理...................................................................13
3.2.2 语义元数据发布－收割的协议设计.................................................................14
3.3 动态元数据管理框架....................................................................................................17
3.3.1 语义元数据发布的设计与实现.........................................................................17
3.3.2 元数据服务提供者的设计与实现.....................................................................20
3.3.3 增值服务例析.....................................................................................................22
4 语义元数据生成模块的设计和实现.......................................................................................23
4.1 基于语义元数据的资源描述模型................................................................................23
4.2 语义元数据生成模块的设计........................................................................................23
4.2.1 Ontology 生成工具 Protégé 简介.......................................................................23
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