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[机器学习] 李宏毅机器学习笔记-6 (Classification: Logistic Regression;Logistic回归)
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Three steps
Step 1: Function Set
Step 2: Goodness of a Function
Step 3: Find the best function
Logistic Regression VS Linear Regression
为什么不能用Logistic Regression+Square Error
Cross Entropy v.s. Square Error
Discriminative(Logstic) v.s. Generative(Gaussion)
Multi-class Classification
原理与两个class一致。
Limitation of Logistic Regression
Cascading logistic regression models就是一种转换的普适方法。