【作者单位】NEC Research China, Beijing 100080, China Department of Mathematics, Taiyuan Normal University, Taiyuan 030012, China Institute of Automation, Chinese Academy of Sciences, Beijing 100080, China
【年份】2007
【卷号】No.2
【页码】297-307
【关键词】algorithms tree expression reduct theory
【摘要】 The discernibility matrix is one of the most important approaches to computing positive region, reduct, core and value reduct in rough sets. The subject of this paper is to develop a parallel approach of it, called \'tree expression\'. Its computatio...