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On Heterogeneous Database Retrieval: A Cognitively Guided Approach

Author

Listed:
  • Ramayya Krishnan

    (The Heinz School, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213)

  • Xiaoping Li

    (AT&T (China) Company, Bright China Chang An Building, Number 7 Jianguomen Nei Avenue, Beijing 100005 PRC)

  • David Steier

    (Scient Incorporated, 1 Market Street, San Francisco, California 94105)

  • Leon Zhao

    (Department of Management Information Systems, Eller College of Business and Public Administration, The University of Arizona, Tucson, Arizona 85721)

Abstract

Retrieving information from heterogeneous database systems involves a complex process and remains a challenging research area. We propose a cognitively guided approach for developing an information-retrieval agent that takes the user's information request, identifies relevant information sources, and generates a multidatabase access plan. Our work is distinctive in that the agent design is based on an empirical study of how human experts retrieve information from multiple, heterogeneous database systems. To improve on empirically observed information-retrieval capabilities, the design incorporates mathematical models and algorithmic components. These components optimize the set of information sources that need to be considered to respond to a user query and are used to develop efficient multidatabase-access plans. This agent design, which integrates cognitive and mathematical models, has been implemented using Soar, a knowledge-based architecture.

Suggested Citation

  • Ramayya Krishnan & Xiaoping Li & David Steier & Leon Zhao, 2001. "On Heterogeneous Database Retrieval: A Cognitively Guided Approach," Information Systems Research, INFORMS, vol. 12(3), pages 286-301, September.
    • Handle: RePEc:inm:orisre:v:12:y:2001:i:3:p:286-301
    DOI: 10.1287/isre.12.3.286.9711
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    References listed on IDEAS

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    1. Herbert A. Simon, 1955. "A Behavioral Model of Rational Choice," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 69(1), pages 99-118.
    2. Hemant K. Bhargava & Steven O. Kimbrough & Ramayya Krishnan, 1991. "Unique Names Violations, a Problem for Model Integration or You Say Tomato, I Say Tomahto," INFORMS Journal on Computing, INFORMS, vol. 3(2), pages 107-120, May.
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    Cited by:

    1. Kartik Hosanagar, 2011. "Usercentric Operational Decision Making in Distributed Information Retrieval," Information Systems Research, INFORMS, vol. 22(4), pages 739-755, December.

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