机器学习基石 - Logistic Regression
机器学习基石下 (Machine Learning Foundations)—Mathematical Foundations
Hsuan-Tien Lin, 林轩田,副教授 (Associate Professor),资讯工程学系 (Computer Science and Information Engineering)
Logistic Regression Problem
- logistic hypothesis:
- logistic function
Logistic Regression Error
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Likelihood of Logistic Hypothesis
极大似然
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cross-entropy error
在极大似然估计下,logistic方程的误差函数
Gradient of Logistic Regression Error
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Minimizing
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PLA Revisited: Iterative Optimization
Gradient Descent
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Linear Approximation
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Simple Heuristic for Changing
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Logistic Regression Algorithm