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Journal of Fuzzy Set Valued Analysis最新文献

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Finding optimal step of fuzzy Newton-Cotes integration rules by using the CESTAC method 用CESTAC方法求模糊牛顿-柯特积分规则的最优步
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2017/JFSVA-00383
S. Noeiaghdam, M. A. Araghi
{"title":"Finding optimal step of fuzzy Newton-Cotes integration rules by using the CESTAC method","authors":"S. Noeiaghdam, M. A. Araghi","doi":"10.5899/2017/JFSVA-00383","DOIUrl":"https://doi.org/10.5899/2017/JFSVA-00383","url":null,"abstract":"The aim of this work, is to evaluate the value of a fuzzy integral by applying the Newton-Cotes integration rules via a reliable scheme. In order to perform the numerical examples, the CADNA (Control of Accuracy and Debugging for Numerical Applications) library and the CESTAC (Controle et Estimation Stochastique des Arrondis de Calculs) method are applied based on the stochastic arithmetic. By using this method, the optimal number of points in the fuzzy numerical integration rules and the optimal approximate solution are obtained. Also, the accuracy of the fuzzy quadrature rules are discussed. An algorithm is given to illustrate the implementation of the method. In this case, the termination criterion is considered as the Hausdorff distance between two sequential results to be an informatical zero. Two sample fuzzy integrals are evaluated based on the proposed algorithm to show the importance and advantage of using the stochastic arithmetic in place of the floating-point arithmetic.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121174129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Some Properties of Intuitionistic $L- T_{0}$ Spaces 直觉性$L- T_{0}$空间的一些性质
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2018/jfsva-00426
R. Islam, M. Hossain, R. Amin
{"title":"Some Properties of Intuitionistic $L- T_{0}$ Spaces","authors":"R. Islam, M. Hossain, R. Amin","doi":"10.5899/2018/jfsva-00426","DOIUrl":"https://doi.org/10.5899/2018/jfsva-00426","url":null,"abstract":"This paper introduces five notions of intuitionistic LT0 spaces and establishes some relation among them. It also proves that all of these notions satisfy ‘good extension’ and ‘hereditary’ property. Finally it observes that all concepts are preserved under one-one, onto and continuous mapping.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121461636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Solving the Interval Riccati differential equation by Wavelet operational matrix method 用小波变换矩阵法求解区间Riccati微分方程
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2016/JFSVA-00288
N. Ghadimi, M. Keshavarz
{"title":"Solving the Interval Riccati differential equation by Wavelet operational matrix method","authors":"N. Ghadimi, M. Keshavarz","doi":"10.5899/2016/JFSVA-00288","DOIUrl":"https://doi.org/10.5899/2016/JFSVA-00288","url":null,"abstract":"Riccati differential equation is an important equation, in many fields of engineering and applied sciences, so recently lots of methods have been proposed to solve this equation. Haar Wavelet operational matrix,is one of the effective methods to solve this equation, that is very simple and easy, compared to other orders. In this paper, we want to solve the nonlinear riccati differential equation in interval initial condition. first we simplify it by using the block pulse function to expand the Haar wavelet one. we have three cases for each interval, but now it can be solved for positive interval Haar coefficients. The results reveal that the proposed method is very effective and simple.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129318949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of ANNs approach for solving fully fuzzy polynomials system 人工神经网络方法在全模糊多项式系统中的应用
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2017/jfsva-00378
Reza Novin, M. A. Araghi, M. Amirfakhrian
{"title":"Application of ANNs approach for solving fully fuzzy polynomials system","authors":"Reza Novin, M. A. Araghi, M. Amirfakhrian","doi":"10.5899/2017/jfsva-00378","DOIUrl":"https://doi.org/10.5899/2017/jfsva-00378","url":null,"abstract":"In processing indecisive or unclear information, the advantages of fuzzy logic and neurocomputing disciplines should be taken into account and combined by fuzzy neural networks. The current research intends to present a fuzzy modeling method using multi-layer fuzzy neural networks for solving a fully fuzzy polynomials system. To clarify the point, it is necessary to inform that a supervised gradient descent-based learning law is employed. The feasibility of the method is examined using computer simulations on a numerical example. The experimental results obtained from the investigation of the proposed method are valid and delivers very good approximation results.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"36 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116661346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An application of a semi-analytical method on linear fuzzy Volterra integral equations 半解析方法在线性模糊Volterra积分方程中的应用
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2014/JFSVA-00161
T. Allahviranloo, M. Ghanbari, R. Nuraei
{"title":"An application of a semi-analytical method on linear fuzzy Volterra integral equations","authors":"T. Allahviranloo, M. Ghanbari, R. Nuraei","doi":"10.5899/2014/JFSVA-00161","DOIUrl":"https://doi.org/10.5899/2014/JFSVA-00161","url":null,"abstract":"Recently, fuzzy integral equations have attracted some interest. In this paper, we focus on linear fuzzy Volterra integral equation of the second kind (FVIE-2) and propose a new method for numerical solving it. In fact, using parametric form of fuzzy numbers we convert a linear fuzzy Volterra integral equation of the second kind to a linear system of Volterra integral equations of the second kind in crisp case. We use variational iteration method (VIM) and find the approximate solution of this system and hence obtain an approximation for fuzzy solution of the linear fuzzy Volterra integral equation of the second kind. Finally, using the proposed method, we give some illustrative examples.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116755701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Multi-objective Fuzzy Reliability Optimization Model: A Parametric Geometric Programming Approach 多目标模糊可靠性优化模型:一种参数几何规划方法
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2016/JFSVA-00308
Tanmay Kundu, S. Islam
{"title":"Multi-objective Fuzzy Reliability Optimization Model: A Parametric Geometric Programming Approach","authors":"Tanmay Kundu, S. Islam","doi":"10.5899/2016/JFSVA-00308","DOIUrl":"https://doi.org/10.5899/2016/JFSVA-00308","url":null,"abstract":"This paper presents a multi-objective reliability optimization model taking system reliability and cost of a series system as objective functions. Due to the vagueness of judgements of the decision maker, the objective as well as constraint goal can involve many uncertain factor and other imprecise parameters with vague in nature in a reliability optimization model. Thus the model is formulated in fuzzy environment by considering cost coefficients and the exponential factor as triangular fuzzy number. Here, the nearest interval approximation method is applied to make the fuzzy model in crisp in nature. There are two types of parametric geometric programming technique is used to solve the proposed model. The performance of these two types of solution approach is evaluated by numerical example at the end of this paper.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117201184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Note on L-R Hexagonal Fuzzy Matrices with Matrix Norm 关于具有矩阵范数的L-R六边形模糊矩阵的一个注记
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2018/JFSVA-00427
D. Stephen Dinagar, U. Narayanan
{"title":"A Note on L-R Hexagonal Fuzzy Matrices with Matrix Norm","authors":"D. Stephen Dinagar, U. Narayanan","doi":"10.5899/2018/JFSVA-00427","DOIUrl":"https://doi.org/10.5899/2018/JFSVA-00427","url":null,"abstract":"Fuzzy matrices play an important role to model several uncertain systems. In this paper, we define two norms namely ‘sup norm’ and ‘operator norm’ of L-R Hexagonal fuzzy matrix (L-R HFM). We also relate the norm of L-R HFM in the distance d(?̂?LR , ?̂?LR). An analytical concept of power series and invertibility under the norm of L-R HFM have been studied. Some of the relevant properties, theorems based on the norms are investigated.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117208846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Some results of approximate fixed points in fuzzy Banach spaces 模糊Banach空间中近似不动点的一些结果
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2016/JFSVA-00345
H. Goudarzi
{"title":"Some results of approximate fixed points in fuzzy Banach spaces","authors":"H. Goudarzi","doi":"10.5899/2016/JFSVA-00345","DOIUrl":"https://doi.org/10.5899/2016/JFSVA-00345","url":null,"abstract":"In this paper, first we introduce some aspects of approximate fixed points, such as approximate fixed point property for subsets of a fuzzy Banach space and approximate eigenvalues of a self mapping on a fuzzy normed space. Then as their consequences, we prove more results for Fixed Point Theory on Fuzzy Banach and Banach Spaces.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114298806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prioritizing the Factors Influencing the Success of Technology Transfer by Reverse Engineering Case Study: Aviation Engines Industry 基于逆向工程的技术转移成功影响因素排序研究——以航空发动机行业为例
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2016/JFSVA-00259
M. Shahriari, N. Pilevari, Farzad Ghassemi Ostad
{"title":"Prioritizing the Factors Influencing the Success of Technology Transfer by Reverse Engineering Case Study: Aviation Engines Industry","authors":"M. Shahriari, N. Pilevari, Farzad Ghassemi Ostad","doi":"10.5899/2016/JFSVA-00259","DOIUrl":"https://doi.org/10.5899/2016/JFSVA-00259","url":null,"abstract":"One of the basic purposes in developing countries had been reduction of their technological gap in different eras. So, technology transfer in developing countries has become one of the key factors of economic growth. But technology transfer is a difficult and complex process, so it can be unsuccessful and may waste time and money or undermine the national technology if performed without enough considering and study. Therefore, according to high ability of interior experts and scientists and country's condition to have a successful technology transfer, Reverse Engineering is used as an effective factor. In this paper supporting 15 experts and using Fuzzy Delphi Method, the effective factors on success of technology transfer by reverse engineering in aviation engines industry will be recognized and then prioritized by members of statistical sample and Analytical Network Process (ANP). Finally, we will have three components, technical knowledge for redesign, technical knowledge for producing, and organizational association with original country that are the most important among the other ten selected components.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127407810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Solution of Impulsive Fuzzy Initial Value Problem by Modified Euler's Method 脉冲模糊初值问题的修正欧拉法数值解
Journal of Fuzzy Set Valued Analysis Pub Date : 1900-01-01 DOI: 10.5899/2016/JFSVA-00280
M. Dirbaz, F. Dirbaz
{"title":"Numerical Solution of Impulsive Fuzzy Initial Value Problem by Modified Euler's Method","authors":"M. Dirbaz, F. Dirbaz","doi":"10.5899/2016/JFSVA-00280","DOIUrl":"https://doi.org/10.5899/2016/JFSVA-00280","url":null,"abstract":"In this paper we present numerical solution of first order impulsive fuzzy differential equation by modified Euler's method for the first time. The algorithm is discussed in detail and the result of the numerical solution is given by solving the numerical example and the graph is plotted finally.","PeriodicalId":308518,"journal":{"name":"Journal of Fuzzy Set Valued Analysis","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125344369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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