Based on the conditional rough entropy theory, the definition of the conditional rough entropy of set is given and it can measure the uncertainty of set. The properties and the related theorems are given.

基于知識(shí)的條件粗糙熵理論日韩毛片无码一级观看，提出了集合的條件粗糙熵概念91久久久久久一区二区，用來(lái)刻畫(huà)和度量集合的不確定性。

The theory significance of conditional rough entropy in decision information system is discussed. The conditional rough entropy measures the partial uncertainty in decision information systems.

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At first, analyze the farmer's desire for the pension by Rough Set theory, construct the attribute reduction algorithm based on the conditional entropy for the computation and analysis of 8,410 questionnaire surveys data to make use of the advantage of rough set to deal with indefinite and incomplete data.

首先利用粗糙集理論理不確定和不完整數(shù)據(jù)的優(yōu)勢(shì)国产在线网站，基于改進(jìn)的基于條件熵的屬性約簡(jiǎn)理論對(duì)8410份問(wèn)卷調(diào)查數(shù)據(jù)進(jìn)行計(jì)算與分析特黄特色黄片，得出與農(nóng)民參保意愿密切相關(guān)的幾個(gè)因素，如年齡91AV导航站、性別欧美插插影院、收入、行業(yè)等久草网在线地址。

Rough ideals been first introduced by Kuroki N. Under the condition of the congruence relation, a rough set of a subsemigroup was proved to be its subsemigroup, while that of a leftideal was also proved to be its leftideal.

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In this paper, granularity in rough set theory is used to describe rules based on the concept of rough degree. A tool for knowledge dependent relation diagram is put forward. Then dimensional knowledge granularity decision space and the same construction mapping decision space based on multi-decision sorts is established, and decision algorithm based on KDRD and decision space is introduced. Finally, through combining with the technique of fault diagnosis, it is proved that the approach is very appropriate to the intelligent decision system.

本文利用粗糙集理論中的粗度概念，在對(duì)獲取規(guī)則進(jìn)行擴(kuò)展性的粒度描述的基礎(chǔ)上78摸免费人成视频在线观看，提出了一種工具―知識(shí)依賴關(guān)系圖国产AAA免费黄色视频，構(gòu)造了n維知識(shí)粒度決策空間以及基于多決策類的同構(gòu)映射決策空間，建立了基于KDRD和決策空間的決策算法免费人成a，并結(jié)合機(jī)械故障診斷說(shuō)明了本方法非常適于故障診斷等通過(guò)結(jié)論獲取原因的智能決策系統(tǒng)欧美性爱精品店。

As the extension of rough set,variable precision rough set reflects the difference of degrees of overlap of kinds and sets.

而可變精度粗糙集作為對(duì)經(jīng)典粗糙集理論的擴(kuò)展，體現(xiàn)了等價(jià)類與集合的重疊度程度上的差別黄色视频一、二、三区。

Then, we study Rough Set Theory approach to KDD, develop two algorithms for deriving Reduct and propose the integration of domain knowledge into Rough Set Theory to mining multiple-level rules.

本文在分析了傳統(tǒng)的關(guān)聯(lián)規(guī)則挖掘算法的基礎(chǔ)上人人干人人射视频，給出了幾個(gè)挖掘算法和一個(gè)遞增修正算法；提出了模糊關(guān)聯(lián)規(guī)則的概念及其挖掘算法午夜福利120；研究了結(jié)合背景知識(shí)的多層次關(guān)聯(lián)規(guī)則的挖掘方法操东北妇女视频。

Chapter 2 is started from the basic theory of elastodynamics, the zero and the first order reflection and transmission coefficients of rough interface are derived in theory, and some numerical examples are given. Also dispersion characters of diffraction waves are discussed in the case of micro-rough interface in deep layers.

第二章從彈性動(dòng)力學(xué)的基本理論出發(fā)，通過(guò)求解波動(dòng)方程的定解問(wèn)題色屁屁影院www免费看国产馆，從理論上導(dǎo)出了地震波在粗糙界面上的零階和一階反射透射系數(shù)黄色视频A片免费在线观看，并給出了數(shù)值算例；該章還討論了深層微粗糙界面的繞射波的頻散特征97色在线视频观看香蕉。

The preparation process of equisetum pratense total alkaloid includes the following steps: coarse pulverizing equisetum pratense to obtain rough powder, methyl alcohol percolation to obtain percolate, recovering methyl alcohol, concentrating, degreasing by means of petroleum ether, alkalifying concentrate, CHCl3 extracting, soda lye washing, neutral water washing, recovering CHCl3 to obtain rough alkaloid, adsorption by using silica gel column, eluting, recovering solvent so as to obtain refined EPR.

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Based on rough set theory, research in this paper mainly focuses on mining rules from decision system.Based on the research of the basic concepts of rough set, we deeply analysis and discuss the approximation set algorithm, equivalence class algorithm, core algorithm, attribute reduction algorithm, rules extract algorithm etc.

本文首先對(duì)數(shù)據(jù)挖掘和知識(shí)發(fā)現(xiàn)作一概述2022韩国限制级电影在线观看，并論述了粗糙集理論的重要概念及其度量日韩视频第一区，基于這些概念和度量，具體分析了粗糙集理論的近似集算法www.rct999.com、核算法国产另类重口调教在线、屬性約簡(jiǎn)算法、規(guī)則提取算法黑人粗大猛烈进出高潮视频，給出了它們的算法分析以及具體實(shí)現(xiàn)步驟欧美国产第页。