add new evaluation metric mlogloss for multi-class classification logloss

2015-03-19 11:34:38 -07:00
parent 8025b338a8
commit e1538ae615
4 changed files with 88 additions and 11 deletions
--- a/src/learner/objective-inl.hpp
+++ b/src/learner/objective-inl.hpp
@@ -225,7 +225,7 @@ class SoftmaxMultiClassObj : public IObjFunction {
    this->Transform(io_preds, output_prob);
  }
  virtual void EvalTransform(std::vector<float> *io_preds) {
-    this->Transform(io_preds, 0);
+    this->Transform(io_preds, 1);
  }
  virtual const char* DefaultEvalMetric(void) const {
    return "merror";