Results 221 to 230 of about 67,281 (268)

Extending the fuzzy database with fuzzy numbers

Information Sciences, 1984
The fuzzy relational database model originated by the authors permits fuzzy domain values from a discrete, finite universe. The model is extended here by demonstrating that fuzzy numbers may be employed as domain values without loss of consistency with respect to representation or the relational algebra.
Bill P. Buckles, Frederick E. Petry
openaire   +1 more source

Ranking of fuzzy numbers by fuzzy mapping

International Journal of Computer Mathematics, 2011
In this work, the concepts of interval function, the mean value and α lower percentile of a fuzzy number are presented. Also, we defined a large family of fuzzy numbers. Then, we obtained a method to rank them. Herein, the approach proposed is relatively simple in terms of computational efforts and is efficient for ranking fuzzy numbers.
Babak Asady, M. Akbari, M. A. Keramati
openaire   +1 more source

Approximations of fuzzy numbers by step type fuzzy numbers

Fuzzy Sets and Systems, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guixiang Wang, Jing Li
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Inverse of a fuzzy matrix of fuzzy numbers

International Journal of Computer Mathematics, 2009
The aim of this paper is to extend the concept of inverse of a matrix with fuzzy numbers as its elements, which may be used to model uncertain and imprecise aspects of real-world problems. We pursue two main ideas based on employing real scenarios and arithmetic operators. In each case, exact and inexact strategies are provided.
Mehdi Dehghan 0002, Mehdi Ghatee, Behnam Hashemi   +2 more
openaire   +1 more source

Fuzzy distance of triangular fuzzy numbers

Journal of Intelligent & Fuzzy Systems, 2013
In this paper, a new triangular fuzzy distance is proposed for two triangular fuzzy numbers and this distance is developed and applied for two points in a K-dimensional space. In this fuzzy distance we use the left and right point. Its calculations are easier compared to the previous presented distances and its result is always a non negative fuzzy ...
Soheil Sadi-Nezhad, Ameneh Noroozi-yadak, Ahmad Makui   +2 more
openaire   +1 more source

Symmetric fuzzy numbers and additive equivalence of fuzzy numbers

Soft Computing, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dong Qiu, Weiquan Zhang
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The Satisfaction Degree of the Fuzzy Numbers and Ranking of the Fuzzy Numbers

2009 Sixth International Conference on Fuzzy Systems and Knowledge Discovery, 2009
In this paper, a new method of ranking the fuzzy number is proposed. Firstly, a new concept of the satisfaction degree of the fuzzy number is presented and its properties are discussed. Secondly, the interaction between the parameters, α- levels and ranking result is studied.
Yi-ying Shi, Xue-Hai Yuan
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A fuzziness measure for fuzzy numbers: Applications

Fuzzy Sets and Systems, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Miguel Delgado 0001, Maria-Amparo Vila, William Voxman   +2 more
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VSOP fuzzy numbers and their fuzzy ordering

Fuzzy Sets and Systems, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kiyomitsu Horiuchi, Naoyuki Tamura
openaire   +2 more sources

Utility with fuzzy numbers

Fuzzy Sets and Systems, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources