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多粒度粗糙集近似集的增量方法

Incremental method for approximating sets of multi-granularity rough sets
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摘要 利用正确分类率来考虑属性论域同时变化时基于向量矩阵的经典多粒度粗糙集上下近似集的动态近似更新。首先讨论了论域缩小属性增加时,多粒度粗糙集的上下近似算子一些性质的改变,并给出了基于向量矩阵的近似集更新方法;其次讨论了论域缩小属性减少时,相应算子性质的变化,并给出了基于向量矩阵的近似集更新方法。新方法有效地缩小了经典多粒度粗糙集近似集更新时的搜索区域。 Dynamic updating the upper and lower approximations in multi-granulation rough sets based on column matrix mainly use the relative correct classification rate to consider the varying attribute values and varying universe simultaneously.First,we discuss some properties of upper and lower approximation operators of multi-granulation rough sets while the universe decreasing and adding attributes,and give an updating method for approximations based on column matrix.Second,we discuss some properties of approximation operators while the universe decreasing and adding attributes,and give an updating method based on column matrix.The methods we proposed effectively shrink the searching region when updating the approximations of the multi-granulation rough sets.
作者 张海洋 马周明 于佩秋 林梦雷 李进金 ZHANG Hai-yang;MA Zhou-ming;YU Pei-qiu;LIN Meng-lei;LI Jin-jin(School of Mathematics and Statistics,Minnan Normal University,Zhangzhou 363000,Fujian,China;Digital Fujian Meteorological Big Data Research Institute,Zhangzhou 363000,Fujian,China)
出处 《山东大学学报(理学版)》 CAS CSCD 北大核心 2020年第1期51-61,共11页 Journal of Shandong University(Natural Science)
基金 国家自然科学基金资助项目(A011404,61573127,61672272,61603173,11701258) 福建省自然科学基金资助项目(2017J01507,2019J01748).
关键词 增量计算 近似集更新 多粒度粗糙集 向量矩阵 incremental computing updating approximation multi-granulation rough set column matrix
作者简介 第一作者:张海洋(1995—),男,硕士研究生,研究方向为粗糙集.E-mail:1913570847@qq.com;通信作者:马周明(1979—),男,博士,副教授,研究方向为人工智能、粒计算和粗糙集.E-mail:44842802@qq.com
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