[資料分析&機器學習] 第3.4講：支援向量機(Support Vector Machine)介紹

?????(Support Vector Machine)??SVM???????????????????????????????SVM?????????????

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????????????????????????????????????SVM?????????

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???????????SVM????????????????????????????????????

?SVM???????????????????????????????????????????????????????????????????Margin??SVM??????Margin??????????????

?????Margin????

?????w*x = 0 ??????????w*x >0 ?????????w*x <0?

?????????????????w*x<-k ???????????w*x>k????????????

?????X1,X2 ???????????(Support vector)???????????????Margin?????Margin???????margin?? ??????????X1??-X2??????????W???????????Y*(W*X) ?k ????(???????)?????margin ?

??SVM??????????????????????????Python??????,????Coursera????????,??????????

???????????SkLearn??SVM?model???Iris???

??Iris???

?????Train??Test???????

??SVM??SVC???kernel?????SVM?Kernel???????????Probability??True

SVC?SVM?C++??????????????????????????libsvm

?test data??????????100%??

??????SVM??????????

SVM???

1. ?????????????margin???
2. ?????????Kernel??????????????????

SVM???

1. ??????????????O(n)????????????????????

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??????????????????????????????????????????50????

[Python?????????]????????Hahow?????????????????????????????????????https://hahow.in/cr/pydataml

?????????????????????????????https://yehjames.typeform.com/to/XIIVQC????????????????????? [emailprotected]

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1. ????? SVM???????- 1
2. ?????(SVM)??????