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This paper proposes a methodology based on fuzzy multiobjective and tabu search to determine the optimal on/off patterns of tie and sectionalizing switches for feeder reconfiguration in a distribution system with distributed generators. Three main objectives considered in the feeder reconfiguration problem consist of power loss, feeder load balancing, and number of switching operations of the switches...
Human resources are the primary resources of an enterprise. Personnel training can cultivate core competence and achieve the success. In view of the existing fuzziness and randomness in the training effect comprehensive evaluation, an index system, which comprises the first class indices such as training condition, training management and training effect, was put forward; and then a two stage fuzzy...
This paper proposes a fuzzy TOPSIS method. An example including an application to distribution center location selection is investigated using the method to illustrate its applications and the differences from the traditional TOPSIS method. The traditional TOPSIS is only suitable for decision making under certain multi-criteria, which requires the decision-making criteria and the attribute entropy...
In this paper, a novel approach is proposed for automatic adaptive subtitle color changing based on fuzzy logic. Fuzzy analyzer, the core of this system, changes the color of the subtitle/caption to a 'pleasant' color according to color harmony and the visual perception of the image background colors. Using RGB histograms of background image, the fuzzy analyzer computes the R, G and B values for the...
One of the main problems in the computer area, more specifically in the hypermedia area, is related to the information overload. This is because most of the hypermedia systems are not developed taking the heterogeneous needs of the users into account. These systems are made essentially to show all the information to every user. It is known that each user has different levels of knowledge, goals, abilities,...
This paper presents a new approach to enhance the contrast of microcalcifications in mammograms using a fuzzy algorithm based on Tsallis entropy. In phase I image is fuzzified using S membership function. In Phase II using the non-uniformity factor calculated from local information the contrast of Microcalcifications were enhanced while suppressing the background heavily. This is the first time in...
Sensor networks are the next generation of technology for use in various applications, including tracking, monitoring and control. However, sensor networks still have some inherent security and hardware problems. The cluster routing scheme has been proposed in attempt to reduce duplication reports. Moreover, statistical en-route filtering (SEF) has been proposed to detect and drop the injected fabricated...
Knowledge management is a critical process in organizations. There may be dependence and feedback among factors of knowledge management performance assessment. In this study, analytic network process (ANP) was adopted to model a multi-criteria knowledge management performance assessment system with dependence and feedback. Due to complexity in assessing knowledge management performance, it is difficult...
Mobile Ad-hoc Networks (MANET) are multi-hop wireless packet networks in which all the nodes cooperatively maintain the network connectivity without the aid of infrastructure networks. This paper proposes a new Distributed Fuzzy Score-based Clustering Algorithm (DFSCA) for MANETs. The proposed Clustering Algorithm considers the Battery Remaining, Number of Neighbors, Number of Members, and Stability...
Ontology construction is a time consuming and labor intensive task and it is difficult to reuse existed ontology, so the conventional knowledge base based ontology building methods are in a low efficiency. From the view of facilitating knowledge sharing and reusing, modularization is introduced into ontology. But most current methods of ontology modularization are restricted to man-made factors to...
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