World Library  
Flag as Inappropriate
Email this Article

Fuzzy rule

Article Id: WHEBN0016415639
Reproduction Date:

Title: Fuzzy rule  
Author: World Heritage Encyclopedia
Language: English
Subject: Non-classical logic, Fuzzy logic, Intuitionism, Fuzzy finite element, Heyting arithmetic
Collection: Fuzzy Logic
Publisher: World Heritage Encyclopedia

Fuzzy rule

A fuzzy rule is defined as a conditional statement in the form:

IF x is A
THEN y is B

where x and y are linguistic variables; A and B are linguistic values determined by fuzzy sets on the universe of discourse X and Y, respectively.

Comparison between Boolean and fuzzy logic rules

A classical IF-THEN statement uses binary logic, for instance:

IF man_height is > 180cm
THEN man_weight is > 50kg

Comparison between computational verb and fuzzy logic rules

Computational verb rules(verb rules, for short) are expressed in computational verb logic. The difference between verb and fuzzy rules is that the former using verbs other than BE in the statement while the latter using verb BE only. For example, the two fuzzy rules in above have the following corresponding computational verb counterparts:

  • IF man_height becomes tall THEN man_weight become heavy;
  • IF man_height increase to tall THEN man_weight probably grow to heavy;

See also

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.