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AbstractIn this paper, we discuss portfolio selection problem in a fuzzy uncertain environment. Based on the Fullér's and Zhang's notations, we discuss some properties of weighted lower and upper possibilistic means and variances as in probability theory. We further present two weighted...
AbstractThe Information Economics and its platform can input the vigor into manufacturing industry, i.e., garment industry, help to increase its ability for good return, promote the level of technology and management of Garments from a labor-intensive industry, and move it to the accurate...
AbstractDecision-tree algorithm provides one of the most popular methodologies for symbolic knowledge acquisition. The resulting knowledge, a symbolic decision tree along with a simple inference mechanism, has been praised for comprehensibility. The most comprehensible decision trees have been...
AbstractIn this paper we study some single-machine scheduling problems with learning effects where the actual processing time of a job serves as a function of the total actual processing times of the jobs already processed and of its scheduled position. We show by examples that the optimal...
AbstractSemisupervised fuzzy clustering plays an important role in discovering structure in data set with both labelled and unlabelled data. The proposed method learns the task of classification and feature selection through the generalized form of Fuzzy C-means. Experimental results illustrate...
AbstractCombined forecasts is a well-established procedure for improving forecasting accuracy which takes advantage of the availability of both multiple information and computing resources for data-intensive forecasting. Therefore, based on the combination of engineering fuzzy set theory and...
Abstract∈-fuzzy dissimilarity relation is defined by using the concept of ∈-fuzzy equivalence relation and a strong negator. It is proved that the ∈-fuzzy dissimilarity relation so defined satisfies inequalities resembling to generalized triangle inequality.
AbstractIn order to construct nonregular power rings, the concept of regular semi-ideal with respect to a subring is introduced. Then several constructive theorems of HX ring and power ring are established and some examples of non-regular power rings are constructed which contain some nonregular...
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