摘要
根据哲学的内外因原理,建立了基于外因驱动的动态信息系统模型,提出了属性值变迁集和变迁属性集2个概念,并提出了2对基于内外因分析的粗糙近似算子,用以研究外因对信息系统变化的作用.
According to the philosophic rule of internal and external factors to the change of objects,the internal factors were the evidence and base of the change of objects,while the external factors were the condition,and the external factors took action by means of the internal factors.It was constructed a dynamic information system based on time sequence and driven by the external factors,and proposed pair of concepts of attribute value transition and transitional attribute set,and then presented two pairs of rough approximation operators based on internal/extermal factors analysis in dynamic information system above to study the actions of external factors to the change of information system.
出处
《浙江师范大学学报（自然科学版）》
CAS
2010年第2期168-172,共5页
Journal of Zhejiang Normal University:Natural Sciences
基金
浙江省教育厅科研项目(20071162)
关键词
粗糙集
近似算子
内外因分析
动态信息系统
rough set
approximation operator
internal and external factors analysis
dynamic information system
