From 0cc35ad04f9c2997014d7cf62a12f697e79fb534 Mon Sep 17 00:00:00 2001 From: Arnur Nigmetov Date: Sat, 20 Jan 2018 19:11:29 +0100 Subject: Major rewrite, templatized version --- .../wasserstein/tests/test_hera_wasserstein.cpp | 203 +++++++++++++++++++++ 1 file changed, 203 insertions(+) create mode 100644 geom_matching/wasserstein/tests/test_hera_wasserstein.cpp (limited to 'geom_matching/wasserstein/tests/test_hera_wasserstein.cpp') diff --git a/geom_matching/wasserstein/tests/test_hera_wasserstein.cpp b/geom_matching/wasserstein/tests/test_hera_wasserstein.cpp new file mode 100644 index 0000000..2ee49ad --- /dev/null +++ b/geom_matching/wasserstein/tests/test_hera_wasserstein.cpp @@ -0,0 +1,203 @@ +#define LOG_AUCTION +#include "catch/catch.hpp" + +#include +#include + + +#undef LOG_AUCTION + +#include "wasserstein.h" + + +using PairVector = std::vector>; + +std::vector split_on_delim(const std::string& s, char delim) +{ + std::stringstream ss(s); + std::string token; + std::vector tokens; + while(std::getline(ss, token, delim)) { + tokens.push_back(token); + } + return tokens; +} + + +// single row in a file with test cases +struct TestFromFileCase { + + std::string file_1; + std::string file_2; + double q; + double internal_p; + double answer; + + TestFromFileCase(std::string s) + { + auto tokens = split_on_delim(s, ' '); + assert(tokens.size() == 5); + + file_1 = tokens.at(0); + file_2 = tokens.at(1); + q = std::stod(tokens.at(2)); + internal_p = std::stod(tokens.at(3)); + answer = std::stod(tokens.at(4)); + + if ( q < 1.0 or std::isinf(q) or + (internal_p != hera::get_infinity() and internal_p < 1.0)) { + throw std::runtime_error("Bad line in test_list.txt"); + } + } +}; + +std::ostream& operator<<(std::ostream& out, const TestFromFileCase& s) +{ + out << "[" << s.file_1 << ", " << s.file_2 << ", q = " << s.q << ", norm = "; + if (s.internal_p != hera::get_infinity()) { + out << s.internal_p; + } else { + out << "infinity"; + } + out << ", answer = " << s.answer << "]"; + return out; +} + + +TEST_CASE("simple cases", "wasserstein_dist") +{ + PairVector diagram_A, diagram_B; + hera::AuctionParams params; + params.wasserstein_power = 1.0; + params.delta = 0.01; + params.internal_p = hera::get_infinity(); + params.initial_epsilon = 0.0; + params.epsilon_common_ratio = 0.0; + params.max_num_phases = 30; + params.gamma_threshold = 0.0; + params.max_bids_per_round = 0; // use Jacobi + + SECTION("trivial: two empty diagrams") { + REQUIRE( 0.0 == hera::wasserstein_dist<>(diagram_A, diagram_B, params)); + } + + SECTION("trivial: one empty diagram, one single-point diagram") { + + diagram_A.emplace_back(1.0, 2.0); + + double d1 = hera::wasserstein_dist<>(diagram_A, diagram_B, params); + REQUIRE( fabs(d1 - 0.5) <= 0.00000000001 ); + + double d2 = hera::wasserstein_dist<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d2 - 0.5) <= 0.00000000001 ); + + params.internal_p = 2.0; + double corr_answer = 1.0 / std::sqrt(2.0); + double d3 = hera::wasserstein_dist<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d3 - corr_answer) <= 0.00000000001 ); + + } + + SECTION("trivial: two single-point diagrams-1") { + + diagram_A.emplace_back(10.0, 20.0); // (5, 5) + diagram_B.emplace_back(13.0, 19.0); // (3, 3) + + double d1 = hera::wasserstein_dist<>(diagram_A, diagram_B, params); + double d2 = hera::wasserstein_dist<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d1 - d2) <= 0.00000000001 ); + REQUIRE( fabs(d1 - 3.0) <= 0.00000000001 ); + + params.wasserstein_power = 2.0; + double d3 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d4 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d3 - d4) <= 0.00000000001 ); + REQUIRE( fabs(d4 - 9.0) <= 0.00000000001 ); + + params.wasserstein_power = 1.0; + params.internal_p = 1.0; + double d5 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d6 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d5 - d6) <= 0.00000000001 ); + REQUIRE( fabs(d5 - 4.0) <= 0.00000000001 ); + + params.internal_p = 2.0; + double d7 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d8 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d7 - d8) <= 0.00000000001 ); + REQUIRE( fabs(d7 - std::sqrt(10.0)) <= 0.00000000001 ); + + } + + SECTION("trivial: two single-point diagrams-2") { + + diagram_A.emplace_back(10.0, 20.0); // (5, 5) + diagram_B.emplace_back(130.0, 138.0); // (4, 4) + + double d1 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d2 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d1 - d2) <= 0.00000000001 ); + REQUIRE( fabs(d1 - 9.0) <= 0.00000000001 ); + + params.wasserstein_power = 2.0; + double d3 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d4 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d3 - d4) <= 0.00000000001 ); + REQUIRE( fabs(d4 - 41.0) <= 0.00000000001 ); // 5^2 + 4^2 + + params.wasserstein_power = 1.0; + params.internal_p = 1.0; + double d5 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d6 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d5 - d6) <= 0.00000000001 ); + REQUIRE( fabs(d5 - 18.0) <= 0.00000000001 ); // 5 + 5 + 4 + 4 + + params.internal_p = 2.0; + double d7 = hera::wasserstein_cost<>(diagram_A, diagram_B, params); + double d8 = hera::wasserstein_cost<>(diagram_B, diagram_A, params); + REQUIRE( fabs(d7 - d8) <= 0.00000000001 ); + REQUIRE( fabs(d7 - 9 * std::sqrt(2.0)) <= 0.00000000001 ); // sqrt(5^2 + 5^2) + sqrt(4^2 + 4^2) = 9 sqrt(2) + + } + +} + + + +TEST_CASE("file cases", "wasserstein_dist") +{ + PairVector diagram_A, diagram_B; + hera::AuctionParams params; + params.wasserstein_power = 1.0; + params.delta = 0.01; + params.internal_p = hera::get_infinity(); + params.initial_epsilon = 0.0; + params.epsilon_common_ratio = 0.0; + params.max_num_phases = 30; + params.gamma_threshold = 0.0; + params.max_bids_per_round = 1; // use Jacobi + + + SECTION("from file:") { + const char* file_name = "../tests/data/test_list.txt"; + std::ifstream f; + f.open(file_name); + std::vector test_params; + std::string s; + while (std::getline(f, s)) { + test_params.emplace_back(s); + } + + for(const auto& ts : test_params) { + params.wasserstein_power = ts.q; + params.internal_p = ts.internal_p; + bool read_file_A = hera::read_diagram_point_set(ts.file_1, diagram_A); + bool read_file_B = hera::read_diagram_point_set(ts.file_2, diagram_B); + REQUIRE( read_file_A ); + REQUIRE( read_file_B ); + double hera_answer = hera::wasserstein_dist(diagram_A, diagram_B, params); + REQUIRE( fabs(hera_answer - ts.answer) <= 0.01 * hera_answer ); + std::cout << ts << " PASSED " << std::endl; + } + } +} -- cgit v1.2.3