计算机科学 ›› 2020, Vol. 47 ›› Issue (6A): 436-439.doi: 10.11896/JsJkx.191100011
岳晓威1, 彭莎2, 秦克云1
YUE Xiao-wei1, PENG Sha2 and QIN Ke-yun1
摘要: 形式背景的属性约简是形式概念分析的重要研究内容之一。文中研究形式背景保持面向对象(属性)概念格结构的属性约简方法。通过分析相应的粒概念,提出了一种新的基于面向对象概念格和基于面向属性概念格的协调集判定定理,进而得到了新的可辨识属性集和可辨识属性矩阵,借助布尔逻辑公式转换给出了约简计算方法。提出的方法可以避免计算所有面向对象的形式概念及面向属性的所有形式概念。另外,提出了面向对象概念格和面向属性概念格的属性特征,给出了绝对必要属性、相对必要属性、绝对不必要属性的等价描述。
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