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横向合成背景的概念生成 被引量:3

Concept lattice construction through the composition of attributes
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摘要 目的研究如何利用多个已知形式背景的概念来获得其横向合并形式背景概念的方法。方法形式背景合并前后对偶算子之间的关系。结果得到了由已知小背景的概念获得合并后背景的概念的方法。结论在已经知道小背景的概念的基础上,可以避开重新建格,在知识发现过程中节省资源。 Aim To study the method for obtaining all the concepts of a new combined formal context from some raw contexts with the same objects.Methods Using the relation of dual operators between the combined formal context and primary formal contexts.Results Find the method of obtaining all the concepts of a new combined formal context from some raw contexts.Conclusion The method can avoid reconstructing a new lattice when analyzing a bigger formal context and save resource consequently in the course of knowledge discovery.
机构地区 西北大学数学系
出处 《西北大学学报(自然科学版)》 CAS CSCD 北大核心 2010年第2期195-198,共4页 Journal of Northwest University(Natural Science Edition)
基金 国家自然科学基金资助项目(60703117)
关键词 形式背景 概念格 合成背景 formal context concept lattice combined context
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