2 * folded-ctf is an implementation of the folded hierarchy of
3 * classifiers for object detection, developed by Francois Fleuret
6 * Copyright (c) 2008 Idiap Research Institute, http://www.idiap.ch/
7 * Written by Francois Fleuret <francois.fleuret@idiap.ch>
9 * This file is part of folded-ctf.
11 * folded-ctf is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 3 as
13 * published by the Free Software Foundation.
15 * folded-ctf is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with folded-ctf. If not, see <http://www.gnu.org/licenses/>.
27 Two handy functions to sample in a very large weighted sample set,
28 and to generate a ROC curve given a very large sample set.
38 // This function is not trivial because it has to handle numerical
39 // pitfalls due to the very large number of samples.
41 scalar_t robust_sampling(int nb, scalar_t *weights, int nb_to_sample, int *sampled);
43 void print_roc_small_pos(ostream *out,
44 int nb_pos, scalar_t *pos_responses,
45 int nb_neg, scalar_t *neg_responses,