Volume 23 (2026)
Volume 22 (2025)
Volume 21 (2024)
Volume 20 (2023)
Volume 19 (2022)
Volume 18 (2021)
Volume 17 (2020)
Volume 16 (2019)
Volume 15 (2018)
Volume 14 (2017)
Volume 13 (2016)
Volume 12 (2015)
Volume 11 (2014)
Volume 10 (2013)
Volume 9 (2012)
Volume 8 (2011)
Volume 7 (2010)
Volume 6 (2009)
Volume 4 (2007)
Volume 3 (2006)
Volume 2 (2005)
Volume 1 (2004)
OPTIMIZATION OF FUZZY CLUSTERING CRITERIA BY A HYBRID PSO AND FUZZY C-MEANS CLUSTERING ALGORITHM

E. MEHDIZADEH; S. SADI-NEZHAD; R. TAVAKKOLI-MOGHADDAM

Volume 5, Issue 3 , September and October 2008, Pages 1-14

Abstract
  This paper presents an efficient hybrid method, namely fuzzy particleswarm optimization (FPSO) and fuzzy c-means (FCM) algorithms, to solve the fuzzyclustering problem, especially for large sizes. When the problem becomes large, theFCM algorithm may result in uneven distribution of data, making it difficult ...  Read More

SOLVING FUZZY LINEAR SYSTEMS BY USING THE SCHUR COMPLEMENT WHEN COEFFICIENT MATRIX IS AN M-MATRIX

M. S. Hashemi; M. K. Mirnia; S. Shahmorad

Volume 5, Issue 3 , September and October 2008, Pages 15-29

Abstract
  This paper analyzes a linear system of equations when the righthandside is a fuzzy vector and the coefficient matrix is a crisp M-matrix. Thefuzzy linear system (FLS) is converted to the equivalent crisp system withcoefficient matrix of dimension 2n × 2n. However, solving this crisp system isdifficult ...  Read More

ALMOST S^{*}-COMPACTNESS IN L-TOPOLOGICAL SPACES

Guo-Feng Wen; Fu-Gui Shi; Hong-Yan Li

Volume 5, Issue 3 , September and October 2008, Pages 31-44

Abstract
  In this paper, the notion of almost S^{*}-compactness in L-topologicalspaces is introduced following Shi’s definition of S^{*}-compactness. The propertiesof this notion are studied and the relationship between it and otherdefinitions of almost compactness are discussed. Several characterizations ...  Read More

BEST APPROXIMATION SETS IN -n-NORMED SPACE CORRESPONDING TO INTUITIONISTIC FUZZY n-NORMED LINEAR SPACE

S. Vijayabalaji; N. Thillaigovindan

Volume 5, Issue 3 , September and October 2008, Pages 57-69

Abstract
  The aim of this paper is to present the new and interesting notionof ascending family of  $alpha $ −n-norms corresponding to an intuitionistic fuzzy nnormedlinear space. The notion of best aproximation sets in an  $alpha $ −n-normedspace corresponding to an intuitionistic fuzzy ...  Read More

METACOMPACTNESS IN L-TOPOLOGICAL SPACES

Sunil Jacob John; T. Baiju

Volume 5, Issue 3 , September and October 2008, Pages 71-79

Abstract
  In this paper the concept of metacompactness in L-topologicalspaces is introduced by means of point finite families of L-fuzzy sets. Thisfuzzy metacompactness is a natural generalization of Lowen fuzzy compactness.Further a characterization of fuzzy metacompactness in the weakly inducedL-topological ...  Read More

INTUITIONISTIC FUZZY QUASI-METRIC AND PSEUDO-METRIC SPACES

Yongfa Hong; Xianwen Fang; Binguo Wang

Volume 5, Issue 3 , September and October 2008, Pages 81-88

Abstract
  In this paper, we propose a new definition of intuitionistic fuzzyquasi-metric and pseudo-metric spaces based on intuitionistic fuzzy points. Weprove some properties of intuitionistic fuzzy quasi- metric and pseudo-metricspaces, and show that every intuitionistic fuzzy pseudo-metric space is intuitionisticfuzzy ...  Read More

THE DIRECT AND THE INVERSE LIMIT OF HYPERSTRUCTURES ASSOCIATED WITH FUZZY SETS OF TYPE 2

Violeta Leoreanu Fotea

Volume 5, Issue 3 , September and October 2008, Pages 89-94

Abstract
  In this paper we study two important concepts, i.e. the direct andthe inverse limit of hyperstructures associated with fuzzy sets of type 2, andshow that the direct and the inverse limit of hyperstructures associated withfuzzy sets of type 2 are also hyperstructures associated with fuzzy sets of type ...  Read More