Construction of Fuzzy Control Charts Based on Weighted Possibilistic Mean Dabuxilatu Wang, Pinghui Li & Masami Yasuda a School of Economics and Statistics, Guangzhou University, Guangzhou, China b Research Center of Statistical Science Lingnan, Guangzhou University, Guangzhou, China c Faculty of Science, Chiba University, Chiba, Japan Accepted author version posted online: 16 Apr 2014.Published...

Clustering method, which groups thousands of genes by their similarities of expression levels, has been used for identifying unknown functions of genes. Fuzzy clustering method that is one category of clustering assigns one sample to multiple groups according to their membership degrees. It is more appropriate than hard clustering algorithms for analyzing gene expression profiles since single g...

The proposed bi-objective fuzzy data envelopment analysis (BOFDEA) model is a new approach to assess the performance efficiency of decision-making units (DMUs) in uncertain environments using α-cuts. based on (FDEA) and considers two objectives, solution method ranking system are provided. Generally, score obtained for DMU α-cut an interval. Intervals partially ordered sets, due which intervals...

Statistical Quality Control is a valuable strategy that applies to the statistical technique for monitoring manufacturing system under particular situations. On other hand, fuzzy set theory an ideal instrument cope with unclear situation. The existing studies are restricted, and there still mystery behind data. This paper deals technique: namely, control chart based on process capability indice...

For theoretical fuzzy control it is a well known strategy to transform a system of control rules into a system of relation equations. Because these systems of relation equations are not always solvable, solvability criteria and approximate solutions have been discussed. We reconsider some of the results in this field and extend them using more recent results on t-norm based fuzzy logics and on ...

Abstract: This paper proposes a new robust two-degree-of-freedom (DoF) design method for controlling the nonlinear longitudinal speed problem of hybrid electric vehicles (HEVs). First, the uncertain parameters of the HEV model are described by fuzzy α-cut representation, in which the interval uncertainty and the possibility can be simultaneously indicated by the fuzzy membership function. For t...

-This paper proposes a procedure to construct the membership functions of the performance measures in queueing systems where the interarrival time and service time are Fuzzy numbers. We propose a Fuzzy nature in FM/FM/1 queueing system with finite capacity and calling population are infinite. Approximate method of extension namely DSW(Dong, Shah & Wong) algorithm is used to define membership fu...

We propose an flexible extension of SPARQL by introducing fuzzy set theory and the α-cut operation of fuzzy numbers into SPARQL. We show how to efficiently compute the top-k answers of flexible SPARQL queries with regard to membership degrees and user-defined weights. Based on our method, a flexible query service is implemented and evaluated on the LUBM platform. Results of a preliminary user s...