Update CostLayer.h

9 years ago · b3313f2b6d
parent 1ec66a334b
commit b3313f2b6d
1 changed files with 2 additions and 2 deletions
--- a/paddle/gserver/layers/CostLayer.h
+++ b/paddle/gserver/layers/CostLayer.h
@ -164,8 +164,8 @@ public:
 * tasks.
 * \f[
 * L =
- *   output - label         / -1 < (output - label) < 1 /
- *   sign(output - label)   / otherwise  /
+ *   (output - label)^2 * 0.5  / -1 < (output - label) < 1 /
+ *   (output - label) - 0.5    / otherwise  /
 * \f]
 */
 class SmoothL1CostLayer : public CostLayer {