Neighborhood components analysis fails and creates a segmentation fault.

[rcurtin]

Reported by marcus on 18 Feb 43388785 08:25 UTC
The executable for neighborhood components analysis fails and creates a segmentation fault. The error is caused by a wrong reference created by labels.unsafe_col(0).

NCA<LMetric<2> > nca(data, labels.unsafe_col(0)); // this line produce the error
NCA<LMetric<2>, L_BFGS> nca(data, labels.unsafe_col(0)); // this line produce the error

// everything is fine
arma::uvec labels_col = labels.unsafe_col(0);   
NCA<LMetric<2> > nca(data, labels_col); 
NCA<LMetric<2>, L_BFGS> nca(data, labels_col);

Command: nca -i fisheriris_data.csv -l fisheriris_label.csv -o output.csv -O sgd

Data-set and patch is added.

[rcurtin]

Commented by rcurtin on 1 Apr 43388800 21:47 UTC
Patch applied, thanks.