handle negative mmd values in max ratio kernel selection

shogun-toolbox · Aug 20, 2016 · f2bbc3f · f2bbc3f
1 parent 5b47724
commit f2bbc3f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/shogun/statistical_testing/internals/mmd/VarianceH1.h b/src/shogun/statistical_testing/internals/mmd/VarianceH1.h
@@ -233,6 +233,9 @@ struct VarianceH1
 			}
 			auto var_est=compute_variance_estimate();
 			auto mmd_est=compute_mmd_job(kernel_functor);
+			// TODO comfirm the theory
+			if (mmd_est<0)
+				mmd_est=0;
 			result[k]=var_est/CMath::sqrt(mmd_est+m_lambda);
 		}