Fuzzy Decision Making in Toxoplasmosis Medication

Document type: Bookchapters
Peer reviewed: Yes
Author(s): Elisabeth Rakus-Andersson, Alicja Kurnatowska
Title: Fuzzy Decision Making in Toxoplasmosis Medication
Book: New Developments in Fuzzy Sets, Intuitionistic Fuzzy Sets, Generalized Nets and Related Topics
Year: 2012
Volume: II Applications
Pagination: 185-200
Editor: Atanassov K., Homenda W., Hryniewicz O., Kacprzyk J., Krawczak M., Nahorski Z., Szmidt E., Zadrozny S.
ISBN: 83-894-7541-3
Publisher: Polish Academy of Sciences, System Research Institute
City: Warsaw
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Mathematics & Natural Sciences (Sektionen för ingenjörsvetenskap - Avd.för matematik och naturvetenskap)
School of Engineering S-371 79 Karlskrona
+46 455 38 50 00
Authors e-mail: Elisabeth.Andersson@bth.se
Language: English
Abstract: Theoretical fuzzy decision-making models mostly developed by Zadeh, Bellman, Jain and Yager can be adopted as useful tools to estimation of the total effectiveness-utility of a drug when appreciating its positive influence on a collection of symptoms characteristic of a considered diagnosis.
The expected effectiveness of the medicine is evaluated by a physician as a verbal expression for each distinct symptom. By converting the words at first to fuzzy sets and then numbers we can regard the effectiveness structures as entries of a utility matrix that constitutes the common basic component of all methods. We involve the matrix in a number of computations due to different decision algorithms to obtain a sequence of tested medicines in conformity with their abilities to soothe the unfavorable impact of symptoms.
An adjustment of the large spectrum of applied fuzzy decision-making models to the extraction of the best medicines provides us with some deviations in obtained results but we are thus capable to select this method whose effects closest converge to the physicians’ judgments and expectations.
In the current paper we apply fuzzy decision making algorithms to rank medicines in multifocal toxoplasmosis.
Subject: Mathematics\General
Medical Sciences
Keywords: Fuzzy decision-making, Fuzzy utility matrix, Powers of symptom importance, Utilities of medicines in toxoplasmosis, Bellman-Zadeh decision making, Unequal objectives, Minimization of regret, OWA operators.