基于誤判成本的決策樹c5.0算法的優(yōu)化分析

1、山西大學(xué)2014屆碩士學(xué)位論文基于誤判成本的決策樹C5.0算法的優(yōu)化分析基于誤判成本的決策樹C5.0算法的優(yōu)化分析作者姓名張開指導(dǎo)教師崔軍副教授學(xué)科專業(yè)計(jì)算機(jī)應(yīng)用技術(shù)研究方向信息可視化培養(yǎng)單位計(jì)算機(jī)與信息技術(shù)學(xué)院學(xué)習(xí)年限2010年9月至2014年11月二○一四年十月目錄中文摘要.................................................................................

2、..................................IABSTRACT......................................................................................................................III第一章緒論...................................................

3、.................................................................11.1選題背景和意義.....................................................................................................11.2國(guó)內(nèi)外的發(fā)展現(xiàn)狀...............................

4、..................................................................21.3論文主要內(nèi)容.........................................................................................................31.4論文組織結(jié)構(gòu).............................

5、............................................................................4第二章數(shù)據(jù)挖掘與決策樹技術(shù)........................................................................................62.1數(shù)據(jù)挖掘技術(shù)概述..............................

6、...................................................................62.1.1數(shù)據(jù)挖掘的基本概念...................................................................................62.1.2數(shù)據(jù)挖掘的研究?jī)?nèi)容........................................

7、...........................................62.1.3數(shù)據(jù)挖掘的常用技術(shù)...................................................................................72.1.4數(shù)據(jù)挖掘過程...................................................................

8、............................92.2決策樹技術(shù)...........................................................................................................122.2.1決策樹簡(jiǎn)介................................................................

9、.................................122.2.2決策樹C5.0算法.......................................................................................152.2.3決策樹的剪枝.......................................................................

10、......................19第三章C5.0算法的優(yōu)化分析.........................................................................................233.1數(shù)據(jù)采集....................................................................................

11、...........................233.1.1數(shù)據(jù)源的選擇.............................................................................................233.1.2數(shù)據(jù)取樣............................................................................

12、.........................263.2數(shù)據(jù)預(yù)處理...........................................................................................................263.2.1處理數(shù)據(jù)噪聲.................................................................

13、............................273.2.2處理冗余數(shù)據(jù).............................................................................................283.2.3數(shù)據(jù)變換...........................................................................

14、..........................283.3建模開發(fā)...............................................................................................................303.4決策樹C5.0算法優(yōu)化..........................................................

15、...............................333.4.1成本矩陣的設(shè)定.........................................................................................333.4.2選定剪枝程度.........................................................................