Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (36): 68-72.
• 研究、探讨 • Previous Articles Next Articles
WANG Zhaohao，SHU Lan，DING Xiuyong
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王兆浩，舒 兰，丁修勇
Abstract: By adding functions into rough set model，the variable precision rough set model and the probability rough set model are generalized.Comparing the two generalized rough set model，the general rough set models of which the variable precision rough set model and the probability rough set model are two exceptional cases is introduced.Some researches on the properties of these generalized models are done.
Key words: variable precision rough set model, probability rough set model, lower approximations, upper approximations
摘要： 通过在经典粗糙集模型中引入函数，得到了一个广义的变精度粗糙集模型和一个广义的概率粗糙集模型。将这两个广义的模型进行比较研究，又得到了一个更广义的粗糙集模型，这个模型既是变精度粗糙集模型的推广也是概率粗糙集模型的推广，对推广模型的性质做了相应的研究。
关键词: 变精度粗糙集模型, 概率粗糙集模型, 下近似, 上近似
WANG Zhaohao，SHU Lan，DING Xiuyong. On generalization of several rough set models[J]. Computer Engineering and Applications, 2011, 47(36): 68-72.
王兆浩，舒 兰，丁修勇. 几种粗糙集模型的推广研究[J]. 计算机工程与应用, 2011, 47(36): 68-72.
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