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The traditional method of teachers evaluation in colleges and universities listed too many indicators, and there are some indicators that are unimportant or do not care about the people. This evaluation not only delay students, but also can not draw scientific conclusions. This paper introduces a method which combined discernibility matrix and the(More)
At present, the agriculture images are increasing greatly day by day. It becomes increasingly difficult for users to find out the desired images. Building the database to store images and realizing the automatic retrieval of images is very important in agriculture field. Based on the study of visual feature retrieval technology of images, this article puts(More)
With the rapid in global popularization, produced with the definition of the electronic evidence, concept appears. Thus cause the attention of people to electronic evidence. Electronic evidence acquisition and recoverable sex and proof force research become a hotspot of current researches and difficult problem. In this paper, on the basis of collecting(More)
This paper establishes a reasonable evaluation model with the decision-making attribute as the upper factor and the condition attribute as the lower factor, considering both the advantage of reduction in processing massive data and the advantage of AHP in decision-making. AHP has been used in reduction for the rules extracted. The attribute reduction(More)
A new rough set (RS) knowledge acquisition based on discrete particle swarm optimization(DPSO-RS) are proposed to solve feature selection strategy. rough set is lack of the ability of anti-jamming, which is used the information entropy is considered as a suitable function in discrete particle swarm algorithm and the attribute dependent degree of variable(More)
Rough set theory has been successfully applied to many areas including machine learning pattern recognition decision analysis process control, knowledge discovery from databases. An algorithm in finding minimal reduction based on Prepositional Satisfiability(abbreviated as SAT) algorithm is proposed. A branch and bound algorithm is presented to solve the(More)
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