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資源簡介

利用Mtalab編寫實現決策樹生成ID3算法,利用Sogou_webpage數據集進行訓練、驗證與測試。之后實現剪枝。

資源截圖

代碼片段和文件信息

function?[acc]?=?Accurate_Cal(DTXToBePredictXlabel)
%計算決策樹對待預測樣本預測正確率
%???DT?生成的決策樹
%???XToBePredict待預測樣本
%???Xlabel樣本真實標簽
m?=?length(Xlabel);
Plabel?=?zeros(m1);
XlabelIndex?=?(1:m)‘;
[Plabel~]?=?Decision(DTXToBePredictXlabelIndexPlabel);
acc?=?sum(Plabel?==?Xlabel)?/?m;
end


?屬性????????????大小?????日期????時間???名稱
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?????文件????????330??2018-04-23?18:39??DecisionTree\Accurate_Cal.m

?????文件????????793??2018-04-23?18:57??DecisionTree\Decision.m

?????文件????????676??2018-04-23?19:57??DecisionTree\GenerateTree.m

?????文件????????299??2018-04-22?15:01??DecisionTree\Impurity.m

?????文件??????92672??2015-04-28?08:16??DecisionTree\keyword.xls

?????文件???????5418??2018-04-23?20:23??DecisionTree\main.m

?????文件????????486??2018-04-23?19:37??DecisionTree\Prune.m

?????文件???????1088??2018-04-23?19:32??DecisionTree\Prune_layer.m

?????文件????????567??2018-04-23?20:23??DecisionTree\SelectFeature.m

?????文件????1501687??2015-04-28?10:53??DecisionTree\Sogou_webpage.mat

?????文件???????4274??2018-04-23?11:00??DecisionTree\SplitNode.m

?????文件????????432??2015-04-28?11:01??DecisionTree\數據集說明.txt

?????目錄??????????0??2018-05-08?09:52??DecisionTree

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??????????????1608722????????????????????13


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