Softmax Regression

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(Cost Function)
(Cost Function)
Line 152: Line 152:
of the class label.  Note also that in softmax regression, we have that
of the class label.  Note also that in softmax regression, we have that
<math>
<math>
-
p(y^{(i)} = j | x^{(i)} ; \theta) = \frac{e^{\theta_j^T x^{(i)}}}{(\sum_{l=1}^k e^{ \theta_l^T x^{(i)}} }
+
p(y^{(i)} = j | x^{(i)} ; \theta) = \frac{e^{\theta_j^T x^{(i)}}}{\sum_{l=1}^k e^{ \theta_l^T x^{(i)}} }
</math>.
</math>.

Revision as of 07:07, 10 May 2011

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