1. one - class SVM SVDD: https://blog.youkuaiyun.com/OrthocenterChocolate/article/details/40592403
2.one class svm;EllipticEnvelope;IsolationForest https://blog.youkuaiyun.com/sinat_26917383/article/details/76647272
3. https://blog.youkuaiyun.com/YE1215172385/article/details/79750703