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2002 Fiscal Year Final Research Report Summary

Studies on Design and Development of Web Data Warehouse

Research Project

Project/Area Number 13480103
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報システム学(含情報図書館学)
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

KAMBAYASHI Yahiko  Kyoto University, Graduate School of Informatics, Professor, 情報学研究科, 教授 (00026311)

Co-Investigator(Kenkyū-buntansha) YOKOTA Yusuke  Kyoto University, Graduate School of Informatics, Assistant Professor, 情報学研究科, 助手 (70303881)
TAKAKURA Hiroki  Kyoto University, Academic Center for Computing and Media Studies, Associate Professor, 学術情報メディアセンター, 助教授 (70281144)
Project Period (FY) 2001 – 2002
KeywordsWeb Cache / Information Filtering / Data Warehouse / Caching Algorithm / Contents Management / Geographic Information Systems / Web Search / Mobile Terminal
Research Abstract

Due to the rapid expansion of the World Wide Web, it is necessary to develop efficient way of retrieving and processing web contents. Two well-known methods serving for this purpose are web caching and information filtering. The former enhances reusability of retrieved data, while the latter limits retrieval of data to worthwhile ones. In this research, two methods were modified and then united into a single system, under the name of "Web Warehouse".
In improving web cache algorithms, a new model named Virtual Multi-Layered Contents Cache was developed, using classification rules and hierarchical contents management model. The implementation of this model, LRU-SP, was proved to have higher overall efficiency compared to conventional systems in simulation experiment. At the same time, a method using hypertext structure and keyword-based semantics of web contents, named "Intelligent Caching Method using Contents Semantics". This method was implemented as LRU-SP+. The research also contained modification of web cache data as databases, analysis on characteristics of the given data, and dynamic hierarchical structure of web data warehouse, The result was presented in a conference that limits presentations to truly inventive results, (out of 28 presentations in the conference, there was only 1 from Asia,) and has received wide attention for its uniqueness. For improvement on information filtering, locality properties of web contents were used. Unification with Geographic Information Systems (GIS), natural language processing, and hyperlink analysis has enabled restriction of web contents to local ones. This method has improved efficiency in local information search. Although the Web is originally constructed as a global information system, with our system it is also united for a local information search. This method has also gained worldwide attention, and systems with same method are now under development in Korea.

  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] K.Cheng: "Using Database Technology to Improve Performance of Web Proxy Servers"Proceedings of Fourth International Workshop on the Web and Databases (WebDB2001),in conjunction of SIGMOD2001. 73-78 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Kambayashi: "Database Approach for Improving Web Efficiency and Enhancing Geographic Information Systems"Proceedings of 2001 IRC International Conference on Internet Information Retrieval. (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Cheng: "Efficient Management of Data in Proxy Cache"Proceedings of 12^<th> International Workshop on Database and Expert Systems Applications (DEXA 2001). 479-483 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Tezuka: "Web-Based Inference Rules for Processing Conceptual Geographical Relationships"Proceedings of the First International Workshop on Web Geographical Information Systems (WGIS 2001). 375-384 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Lee: "Visual Query Processing for GIS with Web Contents"Proceedings of the 6^<th> IFIP Working Conference on Visual Database Systems. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Kambayashi: "Generation of Location-Related Knowledge from Web Contents"Proceedings of the NSF-OntoWeb Invitational Workshop on DB-IS Research for Semantic Web and Enterprises. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Inoue: "Web Locality Based Ranking Utilizing Location Names and Link Structure"Proceedings of the Second International Workshop on Web and Wireless Geographical Information Systems (W2GIS 2002). (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 手塚太郎: "ウェブ上の自然言語解析で描く都市のイメージ"日本データベース学会Letters. 1・1. 27-30 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Tezuka: "Models for Conceptual Geographical Prepositions Based on Web Resources"Journal of Geographical Information and Decision Analysis (JGIDA). 5・2. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Kambayashi: "Capacity Bound-free Web Warehouse"Proceedings of the First Biennial Conference on Innovative Data Systems Research (CIDR 2003). (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Ozsu, H.-J.Schek, K.Tanaka, Y.Zhang, Y.Kambayashi: "The Second International Conference on Web Information Systems Engineering, Vol.1 Main Program"IEEE Computer Society Press. (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 上林弥彦: "情報の管理と処理"岩波書店. 183 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K. Cheng, Y. Kambayashi and M. Mohania: "Using Database Technology to Improve Performance of Web Proxy Servers"Proceedings of the Fourth International Workshop on the Web and Databases (WebDB2001), in conjunction of SIGMOD2001. 73-78 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Kambayashi, K. Cheng and R. Lee: "Database Approach for Improving Web Efficiency and Enhancing Geographic Information Systems"Proceedings of the 2001 IRC International Conference on Internet Information Retrieval. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Cheng, Y. Kambayashi and M. Mohania: "Efficient Management of Data in Proxy Cache"Proceedings of the 12th International Workshop on Database and Expert Systems Applications (DEXA 2001). 479-483 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Tezuka, R. Lee, H. Takakura and Y. Kambayashi: "Web-Based Inference Rules for Processing Conceptual Geographical Relationships"Proceedings of the F** International Workshop on Web Geographical Information Systems (WGIS 2001). 375-384 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] R. Lee, H. Takakura and Y. Kambayashi: "Visual Query Processing for GIS with Web Contents"Proceedings of the 6th IFIP Working Conference on Visual Database Systems. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Ozsu, H. -J. Schek, K. Tanaka, Y. Zhang and Y. Kambayashi: "The Second International Conference on Web Information Systems Engineering"IEEE Computer Society Press. Vol.1. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Kambayashi, R. Lee and T. Tezuka: "Generation of Location-Related Knowledge from Web Contents"Proceedings of the NSF-Onto Web Invitational Workshop on DB-IS Research for Semantic Web and Enterprises. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Inoue, R. Lee, H. Takakura and Y. Kambayashi: "Web Locality Based Ranking Utilizing Location Names and Link Structure"Proceedings of the Second International Workshop on Web and Wireless Geographical Information Systems (W2GIS 2002). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Tezuka, R. Lee, H. Takakura and Y. Kambayashi: "The Image of the City Using Natural Language Analysis on Web Resources"DBSJ Letters. Vol.1, No.1. 27-30 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Tezuka, R. Lee, H. Takakura and Y. Kambayashi: "Models for Conceptual Geographical Prepositions Based on Web Resources"Journal of Geographical Information and Decision Analysis (JGIDA). Vol.5, No.2. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Kambayashi and K. Cheng: "Capacity Bound-free Web Warehouse"Proceedings of the First Biennial Conference on Innovative Data Systems Research (CIDR 2003). (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Kambayashi: "Information Management and Processing"Iwanami Shoten. 183p (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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