Easyai notes - machine learning

Supervised learning

Supervised learning means that we give algorithms ⼀ Data sets , And give the right answer （ It has been labeled correctly ）. The machine learns the correct answer through data ⽅ Law .

Supervised learning 2 A mission ：
Return to ： Forecast continuous 、 Specific values .
classification ： Classify all kinds of things ,⽤ In discrete prediction .

Unsupervised learning

⾮ In supervised learning , The given dataset does not have “ right key ”, All the data is ⼀ What kind of .⽆ The task of supervised learning is from a given data set , Dig out the underlying structure .

often ⻅ Of 2 Class algorithm is ：
clustering ： Hierarchical clustering
Dimension reduction ： Principal component analysis – PCA

Classical machine learning algorithms

The mainstream supervised learning algorithm