منابع مشابه
Research of Image Recognition based on Rough Set
In the panoramic camera image there is serious noise interference, and it is not easy to extract and other issues. It is imminent to do the image restoration, image recognition to these image. This paper focuses on the equidistant discretization algorithm, in image pretreatment, and in image feature extraction study, focuses on image feature extraction algorithms based on attribute importance,c...
متن کاملResearch in Social Network Based on Rough Set Clustering Algorithm
This paper uses an improved algorithm based on rough set and K-means clustering to do research in social network, and it solves the problem of vague border. Social networks’ community is similar to the cluster analysis in data mining. However ,when the K-means clustering algorithm is used in social network,there are several disadvantages as following: how to determine the value of K,and the rel...
متن کاملRough Set Approximation Based on Dynamic Granulation
In this paper, the concept of a granulation order is proposed in an information system. The positive approximation of a set under a granulation order is defined. Some properties of positive approximation are obtained. For a set of the universe in an information system, its approximation accuracy is monotonously increasing under a granulation order. This means that a proper family of granulation...
متن کاملIndicator Selection based on Rough Set Theory
A method for indicator selection is proposed in this paper. The method, which adopts the General Methodology and Design Research approach, consists of four steps: Problem Identification, Requirement Gathering, Indicator Extraction, and Evaluation. Rough Set approach also has been applied in the Indicator Extraction phase. This phase consists of 5 steps: Data selection, Data Preprocessing, Discr...
متن کاملOn General Binary Relation Based Rough Set
To keep the key idea of rough set and the representation of information in rough set theory, empty representation is processed properly and three new forms of rough approximation sets are defined as a generation of general binary relation based rough set model. Moreover, the properties of approximation operators in these new rough sets are discussed. The relations among them are studied in this...
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ژورنال
عنوان ژورنال: Journal of Computer and Communications
سال: 2015
ISSN: 2327-5219,2327-5227
DOI: 10.4236/jcc.2015.311002