#### one class SVM到底是无监督还是有监督学习？

统计/机器学习 监督式学习 无监督学习 半监督学习    浏览次数： 1080

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One class SVM可以用来做异常点检测，到底是无监督还是有监督学习？或者是半监督？

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SofaSofa数据科学社区 DS面经 问答 实战

abuu   2018-01-26 11:13

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Josh_Josh   2018-01-30 08:25

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Zealing   2018-08-02 11:27

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One-class SVM is used for novelty detection, that is, given a set of samples, it will detect the soft boundary of that set so as to classify new points as belonging to that set or not. The class that implements this is called OneClassSVM.

In this case, as it is a type of unsupervised learning, the fit method will only take as input an array X, as there are no class labels.

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