异种信息源集成技术研究
摘要
数字化时代就是将各种各样的信息进行数字化，并通过网络资源共享和数字信息传输技术广泛传播。异种信息源信息集成技术研究是为了集成网络上各种纷繁复杂的数据信息，并为用户提供方便、快速、智能的查询搜索系统。
因此，对异种信息源集成系统的研究和开发工作非常重要。本课题针对异种信息源集成系统体系结构框架开展较细致的研究，在参照国际公认的OEM和XML半结构化信息模型的基础上提出了半结构化的信息模型表示语言——自定义模式语言SSL；本课题详细分析和阐述了调和器关于查询处理和信息对象融合的关键技术问题以及包装器查询处理和信息集成的实现机制，解决了扩展包装器功能规则和包装器自动生成技术；扩展了异种信息源集成系统对象通信协议中的若干机制，扩展了查询服务功能——提出触发查询处理技术的实现方案和设计思想并解决实现过程中的触发查询管理和通信机制扩展等关键技术问题。
这些研究和扩展工作是国内现有异种信息源集成系统研究的一个新课题，为相关工作研究和技术扩展提供了一些新的思路和方案。本课题在触发查询方面的设计方案将很好地提高异种信息源集成系统智能查询程度并为其他查询服务和智能搜索提供参考和实现技术方案。
The Digital Time is meant to digitalize all kinds of information , and the information propagated broadly through information sharing and information transportation. The purpose of Heterogeneous Information Integrating System research is to integrate all kinds of digital information on the network, and provides more complicated digital information and more convenient, quick and intelligent services to users. It is a very important subject deserving of a deep study.
In this thesis, the Heterogeneous Information Integrating System Architecture is studied in general, and on the basis of the popular model languages such as OEM and XML, a kind of information schema language called Self-defined Schema Language(SSL) is proposed. The key techniques in the querying and information fusion process in mediators, and the implementing mechanism of querying and information integrating in wrappers are detailed in the thesis. Several extensions to existing designs
are also presented: extension to providing wrapper function rules, extension to some mechanisms of object communication protocol in Heterogeneous Information Integrating System; and extension to some query services. The implementation issues of triggered query are discussed, and the key techniques in triggered query management and communication mechanism extension are given in the thesis.
因此，对异种信息源集成系统的研究和开发工作非常重要。本课题针对异种信息源集成系统体系结构框架开展较细致的研究，在参照国际公认的OEM和XML半结构化信息模型的基础上提出了半结构化的信息模型表示语言——自定义模式语言SSL；本课题详细分析和阐述了调和器关于查询处理和信息对象融合的关键技术问题以及包装器查询处理和信息集成的实现机制，解决了扩展包装器功能规则和包装器自动生成技术；扩展了异种信息源集成系统对象通信协议中的若干机制，扩展了查询服务功能——提出触发查询处理技术的实现方案和设计思想并解决实现过程中的触发查询管理和通信机制扩展等关键技术问题。
这些研究和扩展工作是国内现有异种信息源集成系统研究的一个新课题，为相关工作研究和技术扩展提供了一些新的思路和方案。本课题在触发查询方面的设计方案将很好地提高异种信息源集成系统智能查询程度并为其他查询服务和智能搜索提供参考和实现技术方案。
The Digital Time is meant to digitalize all kinds of information , and the information propagated broadly through information sharing and information transportation. The purpose of Heterogeneous Information Integrating System research is to integrate all kinds of digital information on the network, and provides more complicated digital information and more convenient, quick and intelligent services to users. It is a very important subject deserving of a deep study.
In this thesis, the Heterogeneous Information Integrating System Architecture is studied in general, and on the basis of the popular model languages such as OEM and XML, a kind of information schema language called Self-defined Schema Language(SSL) is proposed. The key techniques in the querying and information fusion process in mediators, and the implementing mechanism of querying and information integrating in wrappers are detailed in the thesis. Several extensions to existing designs
are also presented: extension to providing wrapper function rules, extension to some mechanisms of object communication protocol in Heterogeneous Information Integrating System; and extension to some query services. The implementation issues of triggered query are discussed, and the key techniques in triggered query management and communication mechanism extension are given in the thesis.
引文
[1] A Standard Textual Interchange Format for the Object Exchange Model(OEM) Roy Goldman , Sudarshan , Chawathe , Arturo Crespo , Jason McHugh Database Group Stanford University
[2] Proposal for 13 Client Server Protocol September 2,1996 Hector Garcia-Molina,Andreas Paepcke http://www-db.stanford.edu
[3] Stanford Digital Library Interoperability Protocol, Stanford Digital Library Group,{hassan,paepcke}@cs.Stanford.edu http://www-diglib.stanford.edu
[4] Key 13 Services (KIS) Working Draft, November 1996 13 Workshop: Miami
[5] Reference Architecture for the Intelligent Integration of Information (I~^3) May 19, 1995 Advanced Research Projects Agency Richard Hull , Roger King
[6] Ontologies: Principles,Methods and Application, Mike Uschold & Michael Gruninger AIAI-TR-191 February 1996
[7] Capbility Based Mediation in TSIMMIS,Chen Li , Ramana Yemeni, Vasilis Vassalos ,etc...
[8] Descriptive and Formal Ontology Raul Corazzon
[9] Object Fusion in Mediator System, Yannis Papakonstantinou-Serge Abiteboul-Hector Garcia-Molina
[10] Wrapper Generation for Semi-structured Internet Sources, Naveen Ashish and CraigKnoblock
[11] Using Wrapper Agents to Answer Queries in Distributed Information Systems>> Luciano Serafini and Chinara Ghidini
[12] Building the InfoBus-A Review of Technical Choices in the Stanford Digital Library Project, Andreas Paepcke ... , Stanford University
[13] Interoperability for Digital Libraries: Problems and Directions, Andreas Paepcke, Stanford University
[14] Sun Microsystems programing utility&libraries , SUN microsystem ,Inc.
[15] CORBA 教程
[16] Addressing Heterogeneity in the Networked Information Environment, Michelle Q Wang Bldonado and Steve B.Cousins , Computer Science Department, Stanford University
[17] The Stanford Digital Library Metadata Architecture ,Michelle Baldonado... , Computer Science Department, Stanford University
[18] The TSIMMIS Approach to Mediation, Hector Barcia-Molina,etc.
[19] Key 13 Services (KIS) Working Draft, November 1996,13 Workshop-.Miami
[20] Query Mapping Across Heterogeneous Information Sources , Chen-Chuan K.Chang, Computer Scientce Department, Stanford University
[21] An Optimizer for Heterogeneous Systems With NoStandard Data and Search Capabilities, IBM Almaden Research Center, San Jose, CA 95120
[22] Object Exchange Across Heterogeneous Information Sources, Yannis Papakonstantinou Hector Garcia-Molina, Computer Science Department , Stanford University
[23] A Wrapper Architecture for legacy Data Sources , Mary Tork Roth , Peter Schwarz, IBM Almaden Research Center
[24] ONTOLOGIES : Principles, Methods and Application , Mike Uschold & Michael Gruninger, February 1996
[25] ORBIX and ORBIX WEB tools for Application Integration , IONA Inc.
[2] Proposal for 13 Client Server Protocol September 2,1996 Hector Garcia-Molina,Andreas Paepcke http://www-db.stanford.edu
[3] Stanford Digital Library Interoperability Protocol, Stanford Digital Library Group,{hassan,paepcke}@cs.Stanford.edu http://www-diglib.stanford.edu
[4] Key 13 Services (KIS) Working Draft, November 1996 13 Workshop: Miami
[5] Reference Architecture for the Intelligent Integration of Information (I~^3) May 19, 1995 Advanced Research Projects Agency Richard Hull , Roger King
[6] Ontologies: Principles,Methods and Application, Mike Uschold & Michael Gruninger AIAI-TR-191 February 1996
[7] Capbility Based Mediation in TSIMMIS,Chen Li , Ramana Yemeni, Vasilis Vassalos ,etc...
[8] Descriptive and Formal Ontology Raul Corazzon
[9] Object Fusion in Mediator System, Yannis Papakonstantinou-Serge Abiteboul-Hector Garcia-Molina
[10] Wrapper Generation for Semi-structured Internet Sources, Naveen Ashish and CraigKnoblock
[11] Using Wrapper Agents to Answer Queries in Distributed Information Systems>> Luciano Serafini and Chinara Ghidini
[12] Building the InfoBus-A Review of Technical Choices in the Stanford Digital Library Project, Andreas Paepcke ... , Stanford University
[13] Interoperability for Digital Libraries: Problems and Directions, Andreas Paepcke, Stanford University
[14] Sun Microsystems programing utility&libraries , SUN microsystem ,Inc.
[15] CORBA 教程
[16] Addressing Heterogeneity in the Networked Information Environment, Michelle Q Wang Bldonado and Steve B.Cousins , Computer Science Department, Stanford University
[17] The Stanford Digital Library Metadata Architecture ,Michelle Baldonado... , Computer Science Department, Stanford University
[18] The TSIMMIS Approach to Mediation, Hector Barcia-Molina,etc.
[19] Key 13 Services (KIS) Working Draft, November 1996,13 Workshop-.Miami
[20] Query Mapping Across Heterogeneous Information Sources , Chen-Chuan K.Chang, Computer Scientce Department, Stanford University
[21] An Optimizer for Heterogeneous Systems With NoStandard Data and Search Capabilities, IBM Almaden Research Center, San Jose, CA 95120
[22] Object Exchange Across Heterogeneous Information Sources, Yannis Papakonstantinou Hector Garcia-Molina, Computer Science Department , Stanford University
[23] A Wrapper Architecture for legacy Data Sources , Mary Tork Roth , Peter Schwarz, IBM Almaden Research Center
[24] ONTOLOGIES : Principles, Methods and Application , Mike Uschold & Michael Gruninger, February 1996
[25] ORBIX and ORBIX WEB tools for Application Integration , IONA Inc.