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最近在用一些非监督方法做降维的时候,发现在categorical feature有时候MCA比传统的PCA要好一些,(不过有时候先做target encoding再用普通的PCA也不错)。用了一段时间Prince,简单好用,性能不错。https://github.com/MaxHalford/Prince



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最近在用一些非监督方法做降维的时候,发现在categorical feature有时候MCA比传统的PCA要好一些,(不过有时候先做target encoding再用普通的PCA也不错)。用了一段时间Prince,简单好用,性能不错。https://github.com/MaxHalford/Prince

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