计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
16期
140-145
,共6页
集值信息系统%集中有序%属性标准值%优势关系
集值信息繫統%集中有序%屬性標準值%優勢關繫
집치신식계통%집중유서%속성표준치%우세관계
set-valued information systems%ordered concentration%standard values of attribute%dominance relation
集值信息系统是完备信息系统的一种推广，按照语义可划分为合取集值信息系统和析取集值信息系统。属性偏好关系也有两种：属性递增偏好有序和属性递减偏好有序。提出一种新的属性偏好关系，建立了一种新的优势关系。这种优势关系能够表示一类属性偏好既不是递增有序也不是递减有序，而是趋近于某个标准值的情形，称这样的优势关系为属性集中有序，它可应用于某些集值信息系统。
集值信息繫統是完備信息繫統的一種推廣，按照語義可劃分為閤取集值信息繫統和析取集值信息繫統。屬性偏好關繫也有兩種：屬性遞增偏好有序和屬性遞減偏好有序。提齣一種新的屬性偏好關繫，建立瞭一種新的優勢關繫。這種優勢關繫能夠錶示一類屬性偏好既不是遞增有序也不是遞減有序，而是趨近于某箇標準值的情形，稱這樣的優勢關繫為屬性集中有序，它可應用于某些集值信息繫統。
집치신식계통시완비신식계통적일충추엄，안조어의가화분위합취집치신식계통화석취집치신식계통。속성편호관계야유량충：속성체증편호유서화속성체감편호유서。제출일충신적속성편호관계，건립료일충신적우세관계。저충우세관계능구표시일류속성편호기불시체증유서야불시체감유서，이시추근우모개표준치적정형，칭저양적우세관계위속성집중유서，타가응용우모사집치신식계통。
Set-valued information system is a promotion of complete information system. According to semantics, it can be divided into conjunctive set-valued information system and disjunctive set-valued information system. There are also two kinds of attribute preference relations:attribute increasing preference order and attribute decreasing preference order. This paper focuses on a new attribute preference relation and establishes a new dominance relation. This new dominance relation can represent a kind of attribute preference which is not the increasing preference order and not the decreasing preference order, but the condition attribute values tend to the standard values of attribute, such a dominance relation is called as attribute ordered concentration, it can be applied to some set-valued information systems.
