Machine learning notes (constantly updating...)

machine learning

Machine learning is a study of computer algorithms that can be improved automatically by experience .

                                                                        —— Tom · Mitchell （Tom Mitchell[Mitchell,1997]

  The main steps of machine learning

1 Data preprocessing ： Such as noise removal （ Remove stop words in text analysis ）

2 feature extraction ： Extract some effective features

3 Feature conversion ： Feature processing , Mainly for peacekeeping and dimensionality reduction , Dimensionality reduction includes feature extraction and feature selection . Common are PCA and LDA

4 forecast ： Learn a function and predict

Reference material

 《 Neural networks and deep learning 》-- Professor Qiu Xipeng

《 machine learning 》-- Professor Zhou Zhihua

《2022 New machine learning 》-- Li Hongyi