Restored regularization at Laplacian Eigenmaps

shogun-toolbox · Sep 19, 2011 · 8b3602c · 8b3602c
1 parent a176859
commit 8b3602c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/shogun/preprocessor/LaplacianEigenmaps.cpp b/src/shogun/preprocessor/LaplacianEigenmaps.cpp
@@ -149,7 +149,7 @@ SGMatrix<float64_t> CLaplacianEigenmaps::apply_to_feature_matrix(CFeatures* feat
 		// using ARPACK DS{E,A}UPD
 		int eigenproblem_status = 0;
 		float64_t* eigenvalues_vector = SG_MALLOC(float64_t,m_target_dim+1);
-		arpack_dsaeupd_wrap(W_matrix,D_diag_vector,N,m_target_dim+1,"LA",3,false,0.0,0.0,
+		arpack_dsaeupd_wrap(W_matrix,D_diag_vector,N,m_target_dim+1,"LA",3,false,-1e-9,0.0,
 		                    eigenvalues_vector,W_matrix,eigenproblem_status);
 		ASSERT(eigenproblem_status==0);
 		SG_FREE(eigenvalues_vector);