Quick Algorithm for Certain Rule Acquisition Based on Divide and Conquer Method
HU Feng,WANG Guo-Yin
School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031 Institute of Computer Science and Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065
Abstract：Value reduction is a very important issue in rough set theory. Many efficient algorithms have been developed, however, few of them can process huge data sets quickly. In this paper, a quick algorithm for certain rule acquisition based on divide and conquer method is developed by dividing universe objects in attribute space. The proposed algorithm is illustrated by a case research as well. A certain rule set can be got quickly from a discrete decision table in this algorithm. If the data set is in uniform distribution, the time complexity of the algorithm is less than n2, which is fit to process large data sets efficiently. Experiment results show its high efficiency.
胡峰，王国胤. 基于分治法的快速确定规则获取算法[J]. 模式识别与人工智能, 2010, 23(3): 349-356.
HU Feng,WANG Guo-Yin. Quick Algorithm for Certain Rule Acquisition Based on Divide and Conquer Method. , 2010, 23(3): 349-356.
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2010, Vol. 23 
