Differences
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| Both sides previous revisionPrevious revision | |||
| data_mining:regression [2019/02/10 17:12] – [Cost function] phreazer | data_mining:regression [2019/02/10 17:14] (current) – [Gradient descent] phreazer | ||
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| 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 | ||