1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/* This file is part of the Gudhi Library. The Gudhi library
* (Geometric Understanding in Higher Dimensions) is a generic C++
* library for computational topology.
*
* Authors: Mathieu Carrière
*
* Copyright (C) 2017 INRIA
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gudhi/kernel.h>
#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
void usage(int nbArgs, char *const progName) {
std::cerr << "Error: Number of arguments (" << nbArgs << ") is not correct\n";
std::cerr << "Usage: " << progName << " PD1 PD2 \n";
std::cerr << " i.e.: " << progName << " ../../../../data/persistence_diagram/PD1.pers ../../../../data/persistence_diagram/PD2.pers \n";
exit(-1); // ----- >>
}
int main(int argc, char **argv) {
if (argc != 3) usage(argc, argv[0]);
double sigma = 2; double tau = 5;
std::string PDname1(argv[1]); std::string PDname2(argv[2]);
std::vector< std::pair<double, double> > v1, v2; std::string line; double b,d;
std::ifstream input1(PDname1);
while(std::getline(input1,line)){
std::stringstream stream(line); stream >> b; stream >> d; v1.push_back(std::pair<double,double>(b,d));
}
std::ifstream input2(PDname2);
while(std::getline(input2,line)){
std::stringstream stream(line); stream >> b; stream >> d; v2.push_back(std::pair<double,double>(b,d));
}
std::cout << "SWK exact = " << Gudhi::kernel::sliced_wasserstein_kernel (v1,v2,sigma,-1) << std::endl;
std::cout << "SWK approx = " << Gudhi::kernel::sliced_wasserstein_kernel (v1,v2,sigma) << std::endl;
std::cout << "PSSK exact = " << Gudhi::kernel::persistence_scale_space_kernel (v1,v2,sigma,-1) << std::endl;
std::cout << "PSSK approx = " << Gudhi::kernel::persistence_scale_space_kernel (v1,v2,sigma) << std::endl;
std::cout << "LPWGK exact = " << Gudhi::kernel::linear_persistence_weighted_gaussian_kernel (v1,v2,sigma,Gudhi::kernel::arctan_weight,-1) << std::endl;
std::cout << "LPWGK approx = " << Gudhi::kernel::linear_persistence_weighted_gaussian_kernel (v1,v2,sigma,Gudhi::kernel::arctan_weight) << std::endl;
std::cout << "GPWGK exact = " << Gudhi::kernel::gaussian_persistence_weighted_gaussian_kernel (v1,v2,sigma,tau,Gudhi::kernel::arctan_weight,-1) << std::endl;
std::cout << "GPWGK approx = " << Gudhi::kernel::gaussian_persistence_weighted_gaussian_kernel (v1,v2,sigma,tau,Gudhi::kernel::arctan_weight) << std::endl;
}
|
