نتایج جستجو برای: fuzzy cognitive map

تعداد نتایج: 522494  

Journal: :Int. J. Computational Intelligence Systems 2014
Adil Baykasoglu Zeynep D. U. Durmusoglu

Primary school selection is actually a decision making problem that should be supported with several source of information. Parents usually handle this problem in an unstructured manner which is indeed a fuzzy mental ranking of schools with respect to the effectiveness. In this study, an analytical hybrid multiple criteria decision making (MCDM) model is proposed and explained with details for ...

Journal: :CoRR 2015
Hung Thai Le Khang Ding Tran Hung Van Le

TÓM TẮT Bài báo này được thực hiện nhằm mục đích nghiên cứu tìm hiểu thuật toán phân cụm FCM và các ý tưởng cải tiến đã có; tiến hành phân tích và phát hiện những đặc điểm phù hợp trong thuật toán FCM có thể áp dụng được đại số gia tử một lý thuyết sử dụng đại số trong việc biểu diễn giá trị của các biến ngôn ngữ. Từ đó, đề xuất một hướng cải tiến mới, đó là sử dụng lý thuyết đại số gia tử vào ...

Journal: :IJFSA 2011
Katsuhiro Honda Akira Notsu Tomohiro Matsui Hidetomo Ichihashi

Cluster validation is an important issue in fuzzy clustering research and many validity measures, most of which are motivated by intuitive justification considering geometrical features, have been developed. This paper proposes a new validation approach, which evaluates the validity degree of cluster partitions from the view point of the optimality of objective functions in FCM-type clustering....

2016
Piotr Szwed

In this paper we propose an extension to the Fuzzy Cognitive Maps (FCMs) that aims at aggregating a number of reasoning tasks into a one parallel run. The described approach consists in replacing real-valued activation levels of concepts (and further influence weights) by random variables. Such extension, followed by the implemented software tool, allows for determining ranges reached by concep...

Journal: :Advances in Adaptive Data Analysis 2011
Shams Rashwan Amany Sarhan Muhammad Talaat Faheem Bayumy B. A. Youssef

Two-dimensional (2D) polyacrylamide gel electrophoresis of proteins is a robust and reproducible technique. It is the most widely used separation tool in proteomics. Current efforts in the field are directed at development of tools for expanding the range of proteins accessible with 2D gels. Proteomics was built around the 2D gel. The idea that multiple proteins can be analyzed in parallel grew...

Journal: :مدیریت صنعتی 0
محمد مدرس یزدی استاد مهندسی صنایع، دانشکدۀ مهندسی صنایع دانشگاه صنعتی شریف، تهران، ایران حسین صفری استادیار مدیریت صنعتی، دانشکدۀ مدیریت دانشگاه تهران، تهران، ایران بهنام اژدری دکتری مدیریت تولید و عملیات، دانشکدۀ مدیریت، دانشگاه تهران، ایران

nowadays we know effective supply chain management a key to business success. therefore, supply chain managers use many practices for scm effectiveness and many tools as their enablers. nevertheless, literature about causal relations between sc enablers and scm practices and performance is scarce. this study reports a cognitive mapping of causal relationships between scm practices, sc enablers ...

2014
Steven A. Gray E. Zanre Stefan Gray

Fuzzy Cognitive Maps (FCM) have found favor in a variety of theoretical and applied contexts that span the hard and soft sciences. Given the utility and flexibility of the method, coupled with the broad appeal of FCM to a variety of scientific disciplines, FCM have been appropriated in many different ways and, depending on the academic discipline in which it has been applied, used to draw a ran...

2016
Katarzyna Poczeta Lukasz Kubus Alexander Yastrebov Elpiniki I. Papageorgiou

Fuzzy cognitive map (FCM) is a universal tool for modeling dynamic decision support systems. It can be constructed by the experts or learned based on data. FCM models learned from data are denser than those created by experts. We developed an evolutionary learning approach for fuzzy cognitive maps based on density and system performance indicators. It allows to select only the most significant ...

Journal: :Knowl.-Based Syst. 2009
Jose L. Salmeron

This paper proposes to build an Augmented Fuzzy Cognitive Map-based for modelling Critical Success Factors in Learning Management Systems. The study of Critical Success Factors helps decision makers to extract from the multidimensional learning process the core activities that are essential for success. Using Fuzzy Cognitive Maps for modelling Critical Success Factors provides major assistance ...

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