skip to main content
10.1145/509252.509263acmconferencesArticle/Chapter ViewAbstractPublication PagesmodConference Proceedingsconference-collections
Article
Free Access

Extended semantics for generalization hierarchies

Published:31 May 1978Publication History

ABSTRACT

This paper examines the notion of a generalization abstraction proposed by Smith and Smith and considers the properties of a collection of generalizations as a unit called a 'generalization hierarchy'. Presented here is a more detailed representation which consists of a hybrid between a (graphical) network and a predicate calculus formalism.

References

  1. Codd, E. F. "A Relational Model of Data for Large Shared Data Banks," Communications of the ACM 13 (June 1970): 377 - 387. Google ScholarGoogle ScholarDigital LibraryDigital Library
  2. Codd, E. F. "Further Normalization of the Data Base Relational Model." In Data Base Systems, pp. 33 - 64. Edited by Randall Rustin. Englewood Cliffs, NJ: Prentice-Hall, 1972.Google ScholarGoogle Scholar
  3. Codd, E. F. "Relational Completeness of Data Base Sublanguages." In Data Base Systems, pp. 65 - 98. Edited by Randall Rustin. Englewood Cliffs, NJ: Prentice-Hall, 1972.Google ScholarGoogle Scholar
  4. Eswaran, Kapali P. and Chamberlin, Donald D. "Functional Specifications of a Subsystem for Data Base Integrity." Proceedings of the International Conference on Very Large Data Bases. Framingham, MA: September 1975, pp. 48 - 68.Google ScholarGoogle Scholar
  5. Hammer, Michael M. and McLeod, Dennis J. "Semantic Integrity in a Relational Data Base System." Proceedings of the International Conference on Very Large Data Bases, Framingham MA: September 1975, pp. 25 - 47.Google ScholarGoogle Scholar
  6. Hammer, Michael M. and McLeod, Dennis J. "A Framework for Data Base Semantic Integrity." Proceedings of the Second International Conference on Software Engineering, San Francisco CA: October, 1976. Google ScholarGoogle ScholarDigital LibraryDigital Library
  7. Scragg, Greg. "Semantic Nets as Memory Models." in Computational Semantics, pp. 101 - 127. Edited by Eugene Charniak and Yorick Wilks. Amsterdam: North-Holland Publishing Co., 1976.Google ScholarGoogle Scholar
  8. Smith, John Miles and Smith, Diane C. P. "Database Abstractions: Aggregation and Generalization." ACM Transactions on Database Systems 2 (June 1977): 105 - 133. Google ScholarGoogle ScholarDigital LibraryDigital Library
  9. Smith, John Miles and Smith, Diane C. P. "Integrated Specifications for Abstract Systems." Technical Report UUCS-7-112, Department of Computer Science, University of Utah, Salt Lake City, UT, September, 1977.Google ScholarGoogle Scholar
  10. Tarski, Alfred. Introduction to Logic. New York: Oxford University Press, 1965.Google ScholarGoogle Scholar
  11. Wong. Harry K. T. and Mylopoulos, John. "Two Views of Data Semantics: A Survey of Data Models in Artificial Intelligence and Database Management." A.I. Memo 77-2, Department of Computer Science, University of Toronto, December, 1976.Google ScholarGoogle Scholar
  12. Woods, William A. "Transition Network Grammars for Natural Language Analysis", Communications of the ACM 13. No. 10 (October 1970): 591 - 606. Google ScholarGoogle ScholarDigital LibraryDigital Library
  13. Zisman, Michael D. "Use of Production Systems for Modelling Asynchronous, Concurrent Processes." Working Paper 77-04-01, The Decision Sciences Department, Wharton School, University of Pennsylvania, April 1977.Google ScholarGoogle Scholar

Recommendations

Comments

Login options

Check if you have access through your login credentials or your institution to get full access on this article.

Sign in
  • Published in

    cover image ACM Conferences
    SIGMOD '78: Proceedings of the 1978 ACM SIGMOD international conference on management of data
    May 1978
    180 pages
    ISBN:9781450373425
    DOI:10.1145/509252
    • Conference Chair:
    • John Lyon,
    • General Chairs:
    • Alfred G. Dale,
    • Nell B. Dale,
    • Program Chair:
    • Eugene I. Lowenthal

    Copyright © 1978 ACM

    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

    Publisher

    Association for Computing Machinery

    New York, NY, United States

    Publication History

    • Published: 31 May 1978

    Permissions

    Request permissions about this article.

    Request Permissions

    Check for updates

    Qualifiers

    • Article

    Acceptance Rates

    Overall Acceptance Rate785of4,003submissions,20%

PDF Format

View or Download as a PDF file.

PDF

eReader

View online with eReader.

eReader