《百面机器学习》读书笔记（一）-特征工程-白红宇

《百面机器学习》读书笔记（一）-特征工程

阅读量：319 次

发布时间：2019-03-04

本文共 2246 字，大约阅读时间需要 7 分钟。

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?????????????????????????????????????????????????????????Min-Max Scaling?????????Z-Score Normalization??

??????????????????????????????????????????0?1??????
\boxed{X_{norm} = \frac{X - X_{min}}{X_{max} - X_{min}}}

????????????????????????????0?????1?
\boxed{z = \frac{x - \mu}{\sigma}}

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?????One-Hot Coding??????????????????????????????????

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??????PCA?t-SNE??????????????

????????L1/L2????????????????????

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?????N-gram???

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N-gram??????????n-gram???

??????Latent Dirichlet Allocation?LDA??????-?????????????

????????????Word2Vec?GloVe?BERT???????????????

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LDA??????????????????

Word2Vec?BERT???????????????????????

??Word2Vec

Word2Vec????2013????????????????????????

Word2Vec?????????LDA?????????

Word2Vec?????????????????CBOW?Skip-gram?????

CBOW????????????

Skip-gram????????????

???????????????????????CBOW????????????Skip-gram????????????

?LDA???Word2Vec????????????LDA???????????????????????????

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???????L1/L2?????????????????

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??????GAN???????????????????

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