Skip to main content

An Implementation for Fuzzy Deductive Relational Databases

  • Chapter
Recent Issues on Fuzzy Databases

Part of the book series: Studies in Fuzziness and Soft Computing ((STUDFUZZ,volume 53))

Abstract

This chapter shows how to integrate the representation of deductive rules and fuzzy information stored in a relational DBMS to build a module that can obtain new data from data stored in tables. The deductions can be applied to classical (or precise) data, imprecise data or both of them, so it is necessary to provide a mechanism to find the tuples in the database satisfying a rule, i.e. a mechanism to calculate the precision degree of the answer by means of the combination of the precision degrees of every value into an unified measure. Keywords, relational databases extension, fuzzy deduction, inference.

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

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. E.F. Codd. A relational model of data for large shared data banks. Communications of the ACM, 1970.

    Google Scholar 

  2. P. Bosc, M. Galibourg, and G. Hamon. Fuzzy querying with sql: Extensions and implementation aspects. Fuzzy Sets and Systems, 28:333–349, 1988.

    Article  MathSciNet  MATH  Google Scholar 

  3. B. P. Buckles and F. E. Petry. A fuzzy representation of data for relational databases. Fuzzy Sets and Systems, (7):213–226, 1982.

    Article  MATH  Google Scholar 

  4. H. Prade and C. Testemale. Generalizing database relational algebra for the treatment of incomplete/uncertain information and vague queries. Information Sciences, (34):113–143, 1984.

    Article  MathSciNet  Google Scholar 

  5. M. A. Vila, J. C. Cubero, J. M. Medina, and O. Pons. Logic and fuzzy relational databases: A new language and a new definition. In P. Bosc and J. Kacprzyk, editors, In Fuzzy Sets and Possibility Theory in Databases Management Systems. Physica-Verlag, 1995.

    Google Scholar 

  6. M. Zemankova and A. Kandel. Fuzzy Relational Databases — A Key to Expert Systems. Verlag TUV Rheinland, 1984.

    Google Scholar 

  7. J.M. Medina, O. Pons, and M.A. Vila. Gefred. a generalized model of fuzzy relational databases. Information Sciences, 1994.

    Google Scholar 

  8. J.M. Medina, O. Pons, J.C. Cubero, and M.A. Vila. Freddi: A fuzzy relational deductive database interface. International Journal of Intelligent Systems, 12:597–613, 1997.

    Article  Google Scholar 

  9. L.A. Zadeh. The concept of a linguistic variable and its application to approximate reasoning. Information Sei., 8, 9:(8) 199–2481975,

    Article  MathSciNet  MATH  Google Scholar 

  10. L.A. Zadeh. The concept of a linguistic variable and its application to approximate reasoning. Information Sei., 8, 9, 301–357. 1975

    Article  MathSciNet  MATH  Google Scholar 

  11. L.A. Zadeh. The concept of a linguistic variable and its application to approximate reasoning. Information Sei., 8, (9) 43–80, 1975.

    Article  Google Scholar 

  12. J. Grant. Incomplete information in a relational database. Fundamenta Informative, 3:363–378, 1980.

    MathSciNet  MATH  Google Scholar 

  13. E. F. Codd. Extending the database relational model to capture more meaning. ACM Transactions on Database Systems, 4:262–296, 1979.

    Article  Google Scholar 

  14. E. F. Codd. Missing information (applicable and inapplicable) in relational databases. ACM SIGMOD Record, 15(4), 1986.

    Article  Google Scholar 

  15. E. F. Codd. The twelve rules for relational dbms. Technical Report EFC-6, San Jose, The Relational Institute, 1986.

    Google Scholar 

  16. E. F. Codd. More commentary on missing information in relational databases. ACM SIGMOD Record, 16(1), 1987.

    Article  Google Scholar 

  17. J. Galindo. Tratamiento de la Imprecisión en Bases de Datos Relationales: Extensión del modelo y adaptatión de los SGBD actuales. PhD thesis, Department of Computer Science and Artificial Intelligence, University of Granada, SPAIN, 1999.

    Google Scholar 

  18. O. Pons, J. M. Medina, J. C. Cubero, and A. Vila. Foundations of Intelligent Systems, chapter An Architecture for a Deductive Fuzzy Relational Database. Sringer, 1996.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2000 Springer-Verlag Berlin Heidelberg

About this chapter

Cite this chapter

Blanco, I., Cubero, J.C., Pons, O., Vila, A. (2000). An Implementation for Fuzzy Deductive Relational Databases. In: Bordogna, G., Pasi, G. (eds) Recent Issues on Fuzzy Databases. Studies in Fuzziness and Soft Computing, vol 53. Physica, Heidelberg. https://doi.org/10.1007/978-3-7908-1845-1_9

Download citation

  • DOI: https://doi.org/10.1007/978-3-7908-1845-1_9

  • Publisher Name: Physica, Heidelberg

  • Print ISBN: 978-3-7908-2476-6

  • Online ISBN: 978-3-7908-1845-1

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics