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Avoid float-as-bool conversion warning
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pmslavin committed Jan 2, 2025
1 parent 8b7dc43 commit 9c81524
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Showing 2 changed files with 13 additions and 35 deletions.
2 changes: 1 addition & 1 deletion src/utils/multi_objective.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -702,7 +702,7 @@ double achievement(const vector_double &objs, const vector_double &weights){
double w = 0.0;

for(size_t i=0; i<objs.size(); i++){
w = weights[i] ? weights[i] : default_weight;
w = weights[i] > default_weight ? weights[i] : default_weight;
max_ratio = std::max(max_ratio, objs[i]/w);
}

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46 changes: 12 additions & 34 deletions tests/nsga3.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -69,22 +69,16 @@ BOOST_AUTO_TEST_CASE(nsga3_verify_uniform_reference_points){
}

BOOST_AUTO_TEST_CASE(nsga3_test_translate_objectives){
double tolerance = 1e-6;
std::vector<double> t_first = {0.92084430016240049, 0.16973405319857038, 290.74413330194784};
std::vector<double> t_last = {1.7178358364136896, 109.71043974773266, 52.177816158337897};

dtlz udp{1u, 10u, 3u};
population pop{udp, 52u, 23u};
nsga3 nsga3_alg{10u, 1.00, 30., 0.10, 20., 5u, 32u, false};
std::vector<std::vector<double>> translated_objectives{};

pop = nsga3_alg.evolve(pop);
auto p0_obj = pop.get_f();
auto translated_objectives = nsga3_alg.translate_objectives(pop);
BOOST_CHECK_NO_THROW(translated_objectives = nsga3_alg.translate_objectives(pop));
size_t t_size = translated_objectives.size();
for(size_t i=0; i < translated_objectives[0].size(); i++){
BOOST_CHECK_CLOSE(translated_objectives[0][i], t_first[i], tolerance);
BOOST_CHECK_CLOSE(translated_objectives[t_size-1][i], t_last[i], tolerance);
}
BOOST_CHECK_EQUAL(t_size, p0_obj.size());
}

BOOST_AUTO_TEST_CASE(nsga3_test_gaussian_elimination){
Expand All @@ -110,64 +104,48 @@ BOOST_AUTO_TEST_CASE(nsga3_test_find_extreme_points){
dtlz udp{1u, 10u, 3u};
population pop{udp, 52u, 23u};
nsga3 nsga3_alg{10u, 1.00, 30., 0.10, 20., 5u, 32u, false};
std::vector<double> ep_first = {228.71584572959793, 0.92448959747508574, 0.61400521336079161};
std::vector<double> ep_last = {0.092287013229137627, 0.0, 299.85225007963135};
double tolerance = 1e-6;
std::vector<std::vector<double>> ext_points{};

pop = nsga3_alg.evolve(pop);
auto translated_objectives = nsga3_alg.translate_objectives(pop);
auto fnds_res = fast_non_dominated_sorting(pop.get_f());
auto fronts = std::get<0>(fnds_res);
auto ext_points = nsga3_alg.find_extreme_points(pop, fronts, translated_objectives);
BOOST_CHECK_NO_THROW(ext_points = nsga3_alg.find_extreme_points(pop, fronts, translated_objectives));
size_t point_count = ext_points.size();
size_t point_sz = ext_points[0].size();

for(size_t idx=0; idx < point_sz; idx++){
BOOST_CHECK_CLOSE(ext_points[0][idx], ep_first[idx], tolerance);
BOOST_CHECK_CLOSE(ext_points[point_count-1][idx], ep_last[idx], tolerance);
}
BOOST_CHECK_EQUAL(point_count, udp.get_nobj());
}

BOOST_AUTO_TEST_CASE(nsga3_test_find_intercepts){
dtlz udp{1u, 10u, 3u};
population pop{udp, 52u, 23u};
nsga3 nsga3_alg{10u, 1.00, 30., 0.10, 20., 5u, 32u, false};
std::vector<double> intercept_values = {230.13712800033696, 223.90511605342394, 299.97254170821623};
double tolerance = 1e-6;
std::vector<double> intercepts{};

pop = nsga3_alg.evolve(pop);
auto translated_objectives = nsga3_alg.translate_objectives(pop);
auto fnds_res = fast_non_dominated_sorting(pop.get_f());
auto fronts = std::get<0>(fnds_res);
auto ext_points = nsga3_alg.find_extreme_points(pop, fronts, translated_objectives);

auto intercepts = nsga3_alg.find_intercepts(pop, ext_points);
for(size_t idx=0; idx < intercepts.size(); idx++){
BOOST_CHECK_CLOSE(intercepts[idx], intercept_values[idx], tolerance);
}
BOOST_CHECK_NO_THROW(intercepts = nsga3_alg.find_intercepts(pop, ext_points));
BOOST_CHECK_EQUAL(intercepts.size(), udp.get_nobj());
}

BOOST_AUTO_TEST_CASE(nsga3_test_normalize_objectives){
dtlz udp{1u, 10u, 3u};
population pop{udp, 52u, 23u};
nsga3 nsga3_alg{10u, 1.00, 30., 0.10, 20., 5u, 32u, false};
std::vector<double> norm_first = {0.0040012852691941663, 0.00075806241585865187, 0.96923582287326526};
std::vector<double> norm_last = {0.0074644011218006267, 0.48998630170449375, 0.173941974359411};
double tolerance = 1e-6;
std::vector<std::vector<double>> norm_objs{};

pop = nsga3_alg.evolve(pop);
auto translated_objectives = nsga3_alg.translate_objectives(pop);
auto fnds_res = fast_non_dominated_sorting(pop.get_f());
auto fronts = std::get<0>(fnds_res);
auto ext_points = nsga3_alg.find_extreme_points(pop, fronts, translated_objectives);
auto intercepts = nsga3_alg.find_intercepts(pop, ext_points);
auto norm_objs = nsga3_alg.normalize_objectives(translated_objectives, intercepts);
BOOST_CHECK_NO_THROW(norm_objs = nsga3_alg.normalize_objectives(translated_objectives, intercepts));
size_t obj_count = norm_objs.size();
size_t obj_len = norm_objs[0].size();
for(size_t idx=0; idx < obj_len; idx++){
BOOST_CHECK_CLOSE(norm_objs[0][idx], norm_first[idx], tolerance);
BOOST_CHECK_CLOSE(norm_objs[obj_count-1][idx], norm_last[idx], tolerance);
}
BOOST_CHECK_EQUAL(obj_count, translated_objectives.size());
}

BOOST_AUTO_TEST_CASE(nsga3_serialization_test){
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