data_mining:regression

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data_mining:regression [2019/02/10 17:12]
phreazer [Cost function]
data_mining:regression [2019/02/10 17:14] (current)
phreazer [Gradient descent]
Line 53: Line 53:
 Wiederholen bis zur Konvergenz: Wiederholen bis zur Konvergenz:
  
-$\theta_j := \theta_j - alpha \frac{\partial}{\partial\theta_j} J(\theta_0, \theta_1)$+$\theta_j := \theta_j - \alpha \frac{\partial}{\partial\theta_j} J(\theta_0, \theta_1)$
  
 Gleichzeitiges Update (!): Gleichzeitiges Update (!):
  
 $$  $$ 
-tmp0 := \theta_0 - alpha \frac{\partial}{\partial\theta_0} J(\theta_0, \theta_1)\\ +tmp0 := \theta_0 - \alpha \frac{\partial}{\partial\theta_0} J(\theta_0, \theta_1)\\ 
-tmp1 := \theta_1 - alpha \frac{\partial}{\partial\theta_1} J(\theta_0, \theta_1)\\+tmp1 := \theta_1 - \alpha \frac{\partial}{\partial\theta_1} J(\theta_0, \theta_1)\\
 \theta_0 := tmp0\\ \theta_0 := tmp0\\
 \theta_1 := tmp1 \theta_1 := tmp1
  • data_mining/regression.txt
  • Last modified: 2019/02/10 17:14
  • by phreazer