2 ///////////////////////////////////////////////////////////////////////////
3 // This program is free software: you can redistribute it and/or modify //
4 // it under the terms of the version 3 of the GNU General Public License //
5 // as published by the Free Software Foundation. //
7 // This program is distributed in the hope that it will be useful, but //
8 // WITHOUT ANY WARRANTY; without even the implied warranty of //
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
10 // General Public License for more details. //
12 // You should have received a copy of the GNU General Public License //
13 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
15 // Written by Francois Fleuret //
16 // (C) Idiap Research Institute //
18 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
19 ///////////////////////////////////////////////////////////////////////////
23 Two handy functions to sample in a very large weighted sample set,
24 and to generate a ROC curve given a very large sample set.
34 // This function is not trivial because it has to handle numerical
35 // pitfalls due to the very large number of samples.
37 scalar_t robust_sampling(int nb, scalar_t *weights, int nb_to_sample, int *sampled);
39 void print_roc_small_pos(ostream *out,
40 int nb_pos, scalar_t *pos_responses,
41 int nb_neg, scalar_t *neg_responses,