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    發(fā)布日期: 2021-01-04
  • 語言: Python
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資源簡介

用matlab和python實現(xiàn)創(chuàng)建BP神經(jīng)網(wǎng)絡(luò),對鳶尾花數(shù)據(jù)集進行分類

資源截圖

代碼片段和文件信息

%讀取訓(xùn)練數(shù)據(jù)
[f1f2f3f4class]?=?textread(‘trainData.txt‘??‘%f%f%f%f%f‘150);

%特征值歸一化
%[inputminImaxI]?=?premnmx(?[f1??f2??f3??f4?]‘)?;
[inputps]?=?mapminmax([f1f2f3f4]‘01);

%構(gòu)造輸出矩陣
s?=?length(class);
output?=?zeros(s?3);
for?i?=?1?:?s?
???output(?i??class(?i?)??)?=?1?;
end

%創(chuàng)建神經(jīng)網(wǎng)絡(luò)
%net?=?newff(?minmax(input)??[10?3]??{?‘logsig‘?‘purelin‘?}??‘traingdx‘?)?;?
net?=?feedforwardnet(10‘traingdx‘);

%設(shè)置訓(xùn)練參數(shù)
net.trainparam.show?=?50?;
net.trainparam.epochs?=?500?;
net.trainparam.goal?=?0.01?;
net.trainParam.lr?=?0.01?;

%開始訓(xùn)練
net?=?train(?net?input??output‘?);

%讀取測試數(shù)據(jù)
[t1t2t3t4c]?=?textread(‘testData.txt‘??‘%f%f%f%f%f‘150);

%測試數(shù)據(jù)歸一化
%testInput?=?tramnmx?(?[t1t2t3t4]‘??minI?maxI?)?;
testInput?=?mapminmax(‘a(chǎn)pply‘[t1t2t3t4]‘ps);

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1119??2019-04-06?10:26??BP神經(jīng)網(wǎng)絡(luò)\matlab實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\bpAnnIris.m

?????文件???????1349??2011-07-10?13:38??BP神經(jīng)網(wǎng)絡(luò)\matlab實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\testData.txt

?????文件???????2708??2011-07-10?13:42??BP神經(jīng)網(wǎng)絡(luò)\matlab實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\totalData.txt

?????文件???????1359??2011-07-10?13:39??BP神經(jīng)網(wǎng)絡(luò)\matlab實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\trainData.txt

?????文件???????4972??2019-04-10?17:29??BP神經(jīng)網(wǎng)絡(luò)\pyhton實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\iris.csv

?????文件??????30339??2019-04-13?14:48??BP神經(jīng)網(wǎng)絡(luò)\pyhton實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\Iris.docx

?????文件???????5268??2019-04-13?10:56??BP神經(jīng)網(wǎng)絡(luò)\pyhton實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)\Iris.py

?????目錄??????????0??2019-04-20?10:37??BP神經(jīng)網(wǎng)絡(luò)\matlab實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)

?????目錄??????????0??2019-04-20?10:28??BP神經(jīng)網(wǎng)絡(luò)\pyhton實現(xiàn)BP神經(jīng)網(wǎng)絡(luò)

?????目錄??????????0??2019-04-20?10:27??BP神經(jīng)網(wǎng)絡(luò)

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????????????????47114????????????????????10


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