1) conditional class entropy
条件类别熵
3) class entropy
类别熵
4) conditional entropy
条件熵
1.
Reduction method of decision table based on new conditional entropy;
基于新的条件熵的决策表约简方法
2.
An incremental approach to computation of a core based on conditional entropy;
一种基于条件熵的增量核求解方法
3.
Rules extraction method of decision tree based on new conditional entropy;
基于新的条件熵的决策树规则提取方法
5) condition entropy
条件熵
1.
Based on the characteristics of entropy,relevant entropy and condition entropy,a rough granulation approaching variable is added in the rough set theory.
本文基于信息论中信息熵、相对熵和条件熵的概念和性质,在粗糙集系统中增加了一个粗粒度逼近量,并根据粗粒度逼近量提出了一种多尺度逼近的属性约简或者叫规则提取的新算法。
2.
To this issue,the condition entropy is used as heuristic information for reducing the searching room.
针对这一不足,利用粗糙集理论中的条件熵作为启发信息,来缩小搜索空间,并在算法中加入消除冗余属性的二次约简过程,得到一种改进的启发式属性约简算法。
3.
Firstly,the paper gives some concept of rough set theory:decision table,indiscernible relation,information entropy and condition entropy.
首先给出粗糙集理论的几个基本概念:决策表、不可分辨关系、信息熵和条件熵,然后对离散化问题进行介绍,给出断点分类的条件熵定义,在此基础上给出了断点选择的粗糙集连续属性离散化算法。
6) entropy condition
熵条件
1.
Researches on the resolution of fast large time step entropy condition scheme;
快速大时间步长熵条件格式的分辨率研究
2.
By means of characteristics and based on initial conservation law, this paper discusses the existence and uniqueness of weak solution, along with its Rankine-Hugoniot and Entropy Condition.
本文运用特征线方法 ,从交通流原始守恒方程出发给出了解决弱解存在与唯一性的间断关系与熵条件 。
3.
With the help of characteristic analysis,under suitable generalized Rankine-Hugoniot relation and entropy condition,four different structures of Riemann solutions are established uniquely,in which the interactions among delta shock wave,vacuum and contact discontinuity are clarified.
借助于特征分析方法,在适当的广义Rankine-Hugoniot条件和熵条件下,得到狄拉克激波与真空、接触间断之间相互作用的结果,建立了四种不同的唯一的黎曼解结构。
补充资料:工业行业类别
工业行业类别:国家 1994 年制定的《国民经济行业分类与代码》( GB /T4754 - 94 ),将现行的%26#8220;工业%26#8221;门类调整为%26#8220;采掘业%26#8221;%26#8220;制造业%26#8221;和%26#8220;电力、煤气和水的生产和供应业%26#8221;三个门类。依据产业活动单位其经济活动性质的同一性进行分类,即按企业生产的产品经济用途、使用的原材料、生产工艺性质来划分,而不是按其所属行政管理系统分类。
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