The Parametric Modification of Fuzzy Sets Constituting a Content of Medical Linguistic Variables

Document type: Conference Papers
Peer reviewed: Yes
Full text:
Author(s): Elisabeth Rakus-Andersson
Title: The Parametric Modification of Fuzzy Sets Constituting a Content of Medical Linguistic Variables
Conference name: 2007 IEEE Conference on Fuzzy Systems (FUZZIEEE 2007)
Year: 2007
Pagination: 924-929
ISBN: 1-4244-1210-2
Publisher: IEEE Computational Intelligence Society
City: Imperial College, London
ISI number: 000252371500160
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. Mathematics and Science (Sektionen för teknik – avd. för matematik och naturvetenskap)
School of Engineering S- 371 79 Karlskrona
+46 455 38 50 00
http://www.tek.bth.se/
Authors e-mail: Elisabeth.Andersson@bth.se
Language: English
Abstract: One of the most important features of fuzzy set theory is its potential for the modeling of natural language expressions. Most works done on this topic focus on some parts of natural language, mostly those that correspond to the so-called “evaluating linguistic expressions”. We build constraints for the mathematical substitutes of these expressions to mark characteristic limits on an ordered scale.
We discuss a case of creating the total list of terms of the linguistic variable “symptom presence in diagnosis” replaced by fuzzy sets all emerging from one presence description “seldom”. To accomplish this task we insert a particular parameter in the membership functions of the sets.
Subject: Mathematics\General
Keywords: Linguistic variable, constrains of fuzzy sets, s-functions, parametric modifiers of s-functions
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