[机器学习笔记] 梯度降低法

[Machine Learning notebook by NG] Gradient Descent Linear Regression Model(线性模型) h θ = θ 0 + θ 1 x h_\theta=\theta_0+\theta_1x hθ​=θ0​+θ1​x J ( θ 0 , θ 1 ) = 1 2 m ∑ i = 1 m ( h θ ( x ( i ) ) − y ( i

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