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author | ROUVREAU Vincent <vincent.rouvreau@inria.fr> | 2019-06-12 07:46:27 +0200 |
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committer | ROUVREAU Vincent <vincent.rouvreau@inria.fr> | 2019-06-12 07:46:27 +0200 |
commit | 6c57ce009e242db0554aaf9316750dd0bb693d6a (patch) | |
tree | 94409a8ae609c48a6212ff61a90f7c083e0d8fcf /src/Persistence_representations/example/sliced_wasserstein.cpp | |
parent | 4e33acbac51c8c2348dc88a16eb38e14c8ef724a (diff) | |
parent | f58f0bb2cb99076d0cd3a11ad39f3277213e3f5e (diff) |
Merge branch 'master' into main_documentation_pages
Diffstat (limited to 'src/Persistence_representations/example/sliced_wasserstein.cpp')
-rw-r--r-- | src/Persistence_representations/example/sliced_wasserstein.cpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/Persistence_representations/example/sliced_wasserstein.cpp b/src/Persistence_representations/example/sliced_wasserstein.cpp new file mode 100644 index 00000000..089172a0 --- /dev/null +++ b/src/Persistence_representations/example/sliced_wasserstein.cpp @@ -0,0 +1,59 @@ +/* This file is part of the Gudhi Library. The Gudhi library + * (Geometric Understanding in Higher Dimensions) is a generic C++ + * library for computational topology. + * + * Author(s): Mathieu Carriere + * + * Copyright (C) 2018 INRIA (France) + * + * 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/Sliced_Wasserstein.h> + +#include <iostream> +#include <vector> +#include <utility> + +using Persistence_diagram = Gudhi::Persistence_representations::Persistence_diagram; +using SW = Gudhi::Persistence_representations::Sliced_Wasserstein; + +int main(int argc, char** argv) { + + Persistence_diagram persistence1, persistence2; + + persistence1.push_back(std::make_pair(1, 2)); + persistence1.push_back(std::make_pair(6, 8)); + persistence1.push_back(std::make_pair(0, 4)); + persistence1.push_back(std::make_pair(3, 8)); + + persistence2.push_back(std::make_pair(2, 9)); + persistence2.push_back(std::make_pair(1, 6)); + persistence2.push_back(std::make_pair(3, 5)); + persistence2.push_back(std::make_pair(6, 10)); + + + SW sw1(persistence1, 1, 100); + SW sw2(persistence2, 1, 100); + + SW swex1(persistence1, 1, -1); + SW swex2(persistence2, 1, -1); + + std::cout << "Approx SW kernel: " << sw1.compute_scalar_product(sw2) << std::endl; + std::cout << "Exact SW kernel: " << swex1.compute_scalar_product(swex2) << std::endl; + std::cout << "Distance induced by approx SW kernel: " << sw1.distance(sw2) << std::endl; + std::cout << "Distance induced by exact SW kernel: " << swex1.distance(swex2) << std::endl; + + return 0; +} |