In this paper a fuzzy c-means (FCM) based cell formation (CF) algorithm is used to design cellular manufacturing in a tractor manufacturing firm. In cell formation problems as the size of the part-machine matrix incre...
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ISBN:
(纸本)9789812799463
In this paper a fuzzy c-means (FCM) based cell formation (CF) algorithm is used to design cellular manufacturing in a tractor manufacturing firm. In cell formation problems as the size of the part-machine matrix increases the problem gets complicated. Fuzzy models are suitable for CF problems by allowing the representation of uncertain information. FCM based algorithms seem to be efficient for cell formation problems at cellular manufacturing design.
For crisp relations the concept of interval order can be written in different equivalent ways and it satisfies that its strict preference relation is transitive and the associated large preference relation is complete...
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ISBN:
(纸本)9789812799463
For crisp relations the concept of interval order can be written in different equivalent ways and it satisfies that its strict preference relation is transitive and the associated large preference relation is complete. In this contribution we study the previous implications for each of the (non-equivalent for fuzzy relations) possible definitions of fuzzy interval order.
In several service businesses, web sites are almost required to establish a connection between the customer and the service provider. Web site quality also represents the business quality in domains such as e-commerce...
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ISBN:
(纸本)9789812799463
In several service businesses, web sites are almost required to establish a connection between the customer and the service provider. Web site quality also represents the business quality in domains such as e-commerce, finance, etc. Thus, an evaluation of the web sites is necessary to measure the performance of the business. In this paper, an axiomatic design based on fuzzy group decision making is adopted to evaluate e-leaming web sites' quality.
In this paper we present a profile-based approach to information filtering by an analysis of the content of text documents. The Wikipedia index database is created and used to automatically generate the user profile f...
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ISBN:
(纸本)9789812799463
In this paper we present a profile-based approach to information filtering by an analysis of the content of text documents. The Wikipedia index database is created and used to automatically generate the user profile from the user's document collection. The problem-oriented Wikipedia subcorpora are created (using knowledge extracted from the user profile) for each topic of user interests. The index databases of these subcorpora are applied to filtering information flow (e.g., mails, news). Thus, the analyzed texts are classified into several topics explicitly presented in the user profile. The paper concentrates on the indexing part of the approach. The architecture of an application implementing the Wikipedia indexing is described. The indexing method is evaluated using the Russian and Simple English Wikipedia.
Recent research on highly industrial distributed control methods for complex systems has produced a series of new philosophies based on negotiation, which bring together process engineering with computerscience. Amon...
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ISBN:
(纸本)9789812799463
Recent research on highly industrial distributed control methods for complex systems has produced a series of new philosophies based on negotiation, which bring together process engineering with computerscience. Among these control philosophies the ones based on multi-agent systems (MAS) have become especially relevant. However these MAS models have the drawback of an excessive dependence on up-to-date information about the products, elements or information systems. Radio Frequency Identification (RFID) can help solve these problems at a physical level. RFID enhanced MAS have been proven effective at plant level. The information obtained can also help in superior managerial levels. In this paper a new strategy is presented to help define the interface between physical a managerial levels in MAS platforms and societies. This new approach is analysed for the general case of manufacturing plants, but is made to the handling processes in a new airport.
One of the pernicious master issues of supply chain is the bullwhip or whiplash effect;i.e. the variability of the demand information between stages of the supply chain and the increase of this variability as the info...
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ISBN:
(纸本)9789812799463
One of the pernicious master issues of supply chain is the bullwhip or whiplash effect;i.e. the variability of the demand information between stages of the supply chain and the increase of this variability as the information moves upstream through the chain. In this paper, the reaction of bullwhip effect to grey and fuzzy grey GM(11) forecasting models is analyzed by quantifying the bullwhip effect with variance estimation and Lyapunov exponent using a simple supply chain Matlab simulation (i.e. beer game model) and results derived from the simulation compared with the ones obtained from using selected crisp forecasting model.
We show that on the basis of fuzzy transform, the problem of reconstruction of corrupted images can be solved. The proposed technique is called image fusion. An algorithm of image fusion, based on fuzzy transform, is ...
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ISBN:
(纸本)9789812799463
We show that on the basis of fuzzy transform, the problem of reconstruction of corrupted images can be solved. The proposed technique is called image fusion. An algorithm of image fusion, based on fuzzy transform, is proposed and justified. A measure of fuzziness of an image is proposed as well.
This paper is devoted to introduce an axiomatic model to distinguish what functions are suitable for measuring the degree of contradiction between two Atanassov's intuitionistic fuzzy sets. After stating the neede...
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ISBN:
(纸本)9789812799463
This paper is devoted to introduce an axiomatic model to distinguish what functions are suitable for measuring the degree of contradiction between two Atanassov's intuitionistic fuzzy sets. After stating the needed background, in section 2, we justify and present the axioms that a contradiction measure must satisfy, and the first examples are set out. After motivating the necessity of achieving some definition for modelling the continuity, in the next section we introduce the concepts of semicontinuity from below and semicontinuity from above for contradiction measures. Finally, in section 4, some families of contradiction measures are constructed.
In this paper we use an interval valued fuzzy similarity in the stereo matching problem. An algorithm of fuzzy thresholding is used to find the best membership function to fuzzify the images and we use an interval gen...
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ISBN:
(纸本)9789812799463
In this paper we use an interval valued fuzzy similarity in the stereo matching problem. An algorithm of fuzzy thresholding is used to find the best membership function to fuzzify the images and we use an interval generator to construct IVFS from the fuzzy sets that represent the images.
In this contribution we present some working implementations of a mobile group decision making support system that allows to deal with experts' preferences expressed by means of fuzzy preference relations. The sys...
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ISBN:
(纸本)9789812799463
In this contribution we present some working implementations of a mobile group decision making support system that allows to deal with experts' preferences expressed by means of fuzzy preference relations. The system supports incomplete information situations, that is, the situations where the experts do not give all the preference values that they are usually requested. Several implementations have been created in order to compare the advantages and disadvantages of different existing mobile technologies in both the client and server sides of the system.
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