1) approximate set
近似集
1.
The updating method of upper and lower approximate sets for a given set resulting from inserting or deleting attributes is explored.
考虑不完备信息系统中可能具有空值及多值的情况,对属性的增减导致给定集合的上、下近似集的更新的方法进行了探讨,推导和证明一组相关的计算公式,并通过例子加以验证,避免了信息系统中知识变化时需重新分类以计算近似集而带来的庞大的时空开销。
2) lower approximation
下近似集
1.
similarity measure, distance measure and entropy measure are defined for the object rank, then upper and lower approximations of concept are defined by using this fuzzy set method , and decision rules are achieved.
本文提出FPS模型解决这种不确定性,并在此基础上,为概念归纳推理定义了模糊粗糙集,为对象的排序定义了相似性测度、距离测度和熵测度,用模糊集方法定义了概念的上下近似集,并得出了决策规则。
3) upper approximation
上近似集
1.
This paper simply introduces rough set theory and its applications,and then it has a detailed statement on knowledge,lower and upper approximation sets and other basic concepts about it.
在介绍粗糙集理论及其应用的基础上,着重围绕粗糙集理论中的知识,下、上近似集等基本概念展开了详细的阐述。
4) lower approximate set
下近似集
5) upper approximation set
上近似集
1.
And several rough set operation algorithms are also offered in this paper,such as upper approximation set,lower approximation set,intersection,cardinal number and so on.
通过讨论二进制与粗糙集之间的内在联系,提出基于二进制的粗糙集运算理论,并借助二进制的位运算操作,给出粗糙集的上近似集和下近似集、等价类的交、集合的基数的运算算法。
6) lower approximation set
下近似集
1.
And several rough set operation algorithms are also offered in this paper,such as upper approximation set,lower approximation set,intersection,cardinal number and so on.
通过讨论二进制与粗糙集之间的内在联系,提出基于二进制的粗糙集运算理论,并借助二进制的位运算操作,给出粗糙集的上近似集和下近似集、等价类的交、集合的基数的运算算法。
补充资料：〖ZK(〗各证集说诸方备用并五脏六腑集论合抄〖ZK)〗
〖ZK(〗各证集说诸方备用并五脏六腑集论合抄〖ZK)〗
内科著作。1卷。原题清叶桂(天士)家传，撰年不详。此书汇集内科杂证70余种，方剂近200首。每证各为一论，阐明疾病性质、病因、症状、治则及方药。论后每引经说，概括病机。所列方药服法亦皆详备。又列“五脏六腑论”一章，引用《内经》、《难经》，逐一论述五脏六腑之形象、部位、表里关系、病症及治法。本书内容多录自《临证指南》，恐系后人伪托叶氏之作。现存抄本
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条