计算机科学 ›› 2023, Vol. 50 ›› Issue (2): 173-177.doi: 10.11896/jsjkx.211100054
李妍妍, 秦克云
LI Yanyan, QIN Keyun
摘要： 粗糙集理论是一种处理不确定性问题的数学工具。近似算子是粗糙集理论中的核心概念,基于等价关系的Pawlak近似算子可以推广为基于一般二元关系的广义粗糙近似算子。近似算子的拓扑结构是粗糙集理论的重点研究方向。文中主要研究基于对象的广义粗糙近似算子诱导拓扑的性质,证明了广义近似空间中所有可定义集形成拓扑的充分条件也是其必要条件,研究了该拓扑的正则、正规性等拓扑性质;给出了串行二元关系与其传递闭包可以生成相同拓扑的等价条件;讨论了该拓扑与任意二元关系下基于对象的广义粗糙近似算子所诱导拓扑之间的相互关系。
中图分类号:
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