计算机科学 ›› 2021, Vol. 48 ›› Issue (1): 131-135.doi: 10.11896/jsjkx.200800018
曾惠坤, 米据生, 李仲玲
ZENG Hui-kun, MI Ju-sheng, LI Zhong-ling
摘要： 概念格作为一种知识结构被广泛应用于现实生活中的许多方面,当数据为动态时,形式概念的更新是不可避免的,概念的更新既是知识的补充也是信息的融合。 文中主要研究了在形式背景中添加单个属性或多个属性时概念的更新方法,讨论了属性约简和图的极小顶点覆盖在增添属性之后的变化情况;探讨了将动态添加属性放入决策形式背景中时,非冗余规则的提取和优化问题;在保持规则前件不变的条件下,研究了动态增加决策属性时,非冗余规则是如何变化的。
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