Encyclopedia of Database Systems

2009 Edition
| Editors: LING LIU, M. TAMER ÖZSU

Boolean Model

  • Massimo Melucci
Reference work entry
DOI: https://doi.org/10.1007/978-0-387-39940-9_917

Definition

In the Boolean Model for Information Retrieval, a document collection is a set of documents and an index term is the subset of documents indexed by the term itself. An index term can also be seen as a proposition which asserts whether the term is a property of a document, that is, if the term occurs in the document or, in other words, if the document is about the concept represented by the term.

The interpretation of a query is set-theoretical. In practice, a query is a Boolean expression where the set operators are the usual intersection, union and complement, and the operands are index terms. The document subsets which corresponds to the index terms of the query are combined through the set operators. The system returns the documents which belong to the subset expressed by the query.

Historical Background

The Boolean model for Information Retrieval was proposed as a paradigm for accessing large scale systems since the 1950s. The idea of composing queries as Boolean...

This is a preview of subscription content, log in to check access.

Recommended Reading

  1. 1.
    Bar-Hillel Y. Language and information. Addison-Wesley, Reading, MA, USA, 1964.zbMATHGoogle Scholar
  2. 2.
    Belkin N.J., Cool C., Croft W.B., and Callan J.P. The Effect of Multiple Query Representations on Information Retrieval System Performance. In Proc. 16th Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 1993, pp. 339–346.Google Scholar
  3. 3.
    Blair D. Language and representation in information retrieval. Elsevier, Amsterdam, 1990.Google Scholar
  4. 4.
    Cooper W. Getting beyond Boole. Inform. Process. Manage., 24:243–248, 1988.CrossRefGoogle Scholar
  5. 5.
    Croft W., Turtle H., and Lewis D. The Use of phrases and structured queries in information retrieval. In Proc. 14th Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 1991, pp. 32–45.Google Scholar
  6. 6.
    G. (ed.), Grefenstette Cross-Language Information Retrieval, International Series on Information Retrieval, Kluwer Academic, Dordecht, 1998.Google Scholar
  7. 7.
    Hersh W. and Hickam D. An evaluation of interactive Boolean and natural language searching with an online medical textbook. J. Am. Soc. Inform. Sci., 46(7):478–489, 1995.CrossRefGoogle Scholar
  8. 8.
    Hull D. A weighted Boolean model for Cross Language Text Retrieval. In Grefenstette [6], pp. 119–136.Google Scholar
  9. 9.
    Korfhage R. Information Storage and Retrieval. Wiley, New York, 1997.Google Scholar
  10. 10.
    Kowalski G. and Maybury M. Information retrieval systems: Theory and implementation. Kluwer, Dordecht, 2000.Google Scholar
  11. 11.
    Lancaster F. and Warner A. Information retrieval today. Information Resources, Arlington, VA, 1993.Google Scholar
  12. 12.
    Lee J. Properties of Extended Boolean Models in Information Retrieval. In Proc. 17th Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 1994, pp. 182–190.Google Scholar
  13. 13.
    Lee J., Kim W., Kim M., and Lee Y. On the evaluation of Boolean operators in the extended Boolean retrieval framework. In Proc. 16th Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 1993, pp. 291–297.Google Scholar
  14. 14.
    Radecki T. Generalized boolean methods of information Retrieval. Int. J. Man–Machine Studies, 18(5):407–439, 1983.zbMATHCrossRefGoogle Scholar
  15. 15.
    van Rijsbergen C. The Geometry of Information Retrieval. Cambridge University Press, UK, 2004.zbMATHGoogle Scholar
  16. 16.
    Wong S., Ziarko W., Raghavan V., and Wong P. Extended boolean query processing in the generalized vector space model. Inform. Syst., 14(1):47–63, 1989.zbMATHCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Massimo Melucci
    • 1
  1. 1.University of PaduaPaduaItaly