Semantics-Based Information Brokering.

Vipul Kashyap, Amit P. Sheth: Semantics-Based Information Brokering. CIKM 1994: 363-370
  author    = {Vipul Kashyap and
               Amit P. Sheth},
  title     = {Semantics-Based Information Brokering},
  booktitle = {Proceedings of the Third International Conference on Information
               and Knowledge Management (CIKM'94), Gaithersburg, Maryland, November
               29 - December 2, 1994},
  publisher = {ACM},
  year      = {1994},
  pages     = {363-370},
  ee        = {db/conf/cikm/KashyapS94.html,},
  crossref  = {DBLP:conf/cikm/94},
  bibsource = {DBLP,}


The rapid advances in computer and communication technologies, and their merger, is leading to a global information market place. It will consist of federations of very large number of information systems that will cooperate to varying extents to support the users' information needs. We discuss an approach to information brokering in the above environment. We discuss two of its tasks: information resource discovery, which identifies relevant information sources for a given query, and query processing, which involves the generation of appropriate mapping from relevant but structurally heterogeneous objects. Query processing consists of information focusing and information correlation.

Our approach is based on: semantic proximity, which represents semantic similarities based on the context of comparison, and schema correspondences which are used to represent structural mappings and are associated with the context. The context of comparison of the two objects is the primary vehicle to represent the semantics for determining semantic proximity. Specifically, we use a partial context representation to capture the semantics in terms of the assumptions in the intended use of the objects and the intended meaning of the user query. Information focusing is supported by subsequent context comparison. The same mechanism can be used to support information resource discovery. Context comparison leads to changes in schema correspondences that are used to support information correlation.

Copyright © 1994 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.

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Proceedings of the Third International Conference on Information and Knowledge Management (CIKM'94), Gaithersburg, Maryland, November 29 - December 2, 1994. ACM 1994
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Referenced by

  1. Avigdor Gal: Semantic Interoperability in Information Services: Experiencing with CoopWARE. SIGMOD Record 28(1): 68-75(1999)
  2. Vipul Kashyap, Amit P. Sheth: Semantic and Schematic Similarities Between Database Objects: A Context-Based Approach. VLDB J. 5(4): 276-304(1996)
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