Results 21 to 30 of about 529 (217)

A sufficient condition for null controllability of nonlinear control systems [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2009
Classical control methods such as Pontryagin Maximum Principle and Bang-Bang Principle and other methods are not usually useful for solving opti-mal control systems (OCS) specially optimal control of nonlinear systems (OCNS).
A. Heydari, A.V. Kamyad
doaj   +1 more source

Similarity -Based Pattern Recognition for Disease Symptom Extraction and Characterization [PDF]

open access: yesNeutrosophic Sets and Systems
Neutrosophic Fuzzy Sets (NFS) expand upon classical fuzzy sets in the field of fuzzy set theory by including measures of truth, indeterminacy, and falsity.
Priya Mathews   +2 more
doaj   +1 more source

On Intuitionistic Fuzzy Entropy of Order-α

open access: yesAdvances in Fuzzy Systems, 2014
Using the idea of Rènyi’s entropy, intuitionistic fuzzy entropy of order-α is proposed in the setting of intuitionistic fuzzy sets theory. This measure is a generalized version of fuzzy entropy of order-α proposed by Bhandari and Pal and intuitionistic ...
Rajkumar Verma, BhuDev Sharma
doaj   +1 more source

New Similarity Measures of Pythagorean Fuzzy Sets and Their Applications

open access: yesIEEE Access, 2019
Similarity measure, as a tool to measure the similarity degree between two objects, is an important research content in fuzzy set theory. Pythagorean fuzzy set, as a new extension of fuzzy set theory, has been widely used in various fields.
Qiang Zhang   +4 more
doaj   +1 more source

Application of Exponential Jensen Picture Fuzzy Divergence Measure in Multi-Criteria Group Decision Making

open access: yesMathematics, 2019
A divergence measure plays a crucial part in discriminating two probability distributions and drawing inferences constructed on such discrimination.
Shouzhen Zeng   +3 more
doaj   +1 more source

The improvement of uncertainty measurements accuracy in sensor networks based on fuzzy dempster-shafer theory

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2020
Threat Assessment is one of the most important components in combat management systems. However, uncertainty is one of the problems that occur in the input data of these systems that have been provided using several sensors in sensor networks.
Ehsan Azimirad   +1 more
doaj   +1 more source

Axiomatic of Fuzzy Complex Numbers

open access: yesAxioms, 2012
Fuzzy numbers are fuzzy subsets of the set of real numbers satisfying some additional conditions. Fuzzy numbers allow us to model very difficult uncertainties in a very easy way.
Angel Garrido
doaj   +1 more source

Distance Measures Based on Metric Information Matrix for Atanassov’s Intuitionistic Fuzzy Sets

open access: yesAxioms, 2023
The metric matrix theory is an important research object of metric measure geometry and it can be used to characterize the geometric structure of a set. For intuitionistic fuzzy sets (IFS), we defined metric information matrices (MIM) of IFS by using the
Wenjuan Ren, Zhanpeng Yang, Xipeng Li
doaj   +1 more source

Measurement-theoretic frameworks for fuzzy set theory [PDF]

open access: yes, 1997
Two different but related measurement problems are considered within the fuzzy set theory. The first problem is the membership measurement find the second is property ranking. These two measurement problems are combined and two axiomatizations of fuzzy set theory are obtained.
Taner Bilgiç, I. Burhan Türksen
openaire   +2 more sources

Measurable prediction for the single patient and the results of large double blind controlled randomized trials. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: It has been shown that the clinical state of one patient can be represented by known measured variables of interest, each of which then form the element of a fuzzy set as point in the unit hypercube. We hypothesized that precise comparison of
Cathy M Helgason, Thomas H Jobe
doaj   +1 more source

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