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/*!
@authors Andrei Novikov (pyclustering@yandex.ru)
@date 2014-2020
@copyright BSD-3-Clause
*/
#include <gtest/gtest.h>
#include <pyclustering/cluster/ttsas.hpp>
#include <pyclustering/utils/metric.hpp>
#include "samples.hpp"
#include "utenv_check.hpp"
using namespace pyclustering;
using namespace pyclustering::clst;
static void
template_ttsas_length_process_data(const dataset_ptr p_data,
const double & p_threshold1,
const double & p_threshold2,
const std::vector<size_t> & p_expected_cluster_length,
const distance_metric<point> & p_metric = distance_metric_factory<point>::euclidean()) {
ttsas_data output_result;
ttsas solver(p_threshold1, p_threshold2, p_metric);
solver.process(*p_data, output_result);
const dataset & data = *p_data;
const cluster_sequence & actual_clusters = output_result.clusters();
const representative_sequence & actual_repr = output_result.representatives();
for (auto & repr : actual_repr)
ASSERT_EQ(data[0].size(), repr.size());
ASSERT_EQ(actual_repr.size(), actual_clusters.size());
ASSERT_CLUSTER_SIZES(data, actual_clusters, p_expected_cluster_length);
}
TEST(utest_ttsas, allocation_sample_simple_01) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_sample_simple_01_euclidean) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length, distance_metric_factory<point>::euclidean());
}
TEST(utest_ttsas, allocation_sample_simple_01_euclidean_square) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length, distance_metric_factory<point>::euclidean_square());
}
TEST(utest_ttsas, allocation_sample_simple_01_manhattan) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length, distance_metric_factory<point>::manhattan());
}
TEST(utest_ttsas, allocation_sample_simple_01_chebyshev) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length, distance_metric_factory<point>::chebyshev());
}
TEST(utest_ttsas, allocation_sample_simple_01_minkowski) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length, distance_metric_factory<point>::minkowski(2.0));
}
TEST(utest_ttsas, allocation_sample_simple_01_user_defined) {
const std::vector<size_t> expected_clusters_length = { 5, 5 };
auto user_metric = [](const point & p1, const point & p2) { return euclidean_distance(p1, p2); };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 1.0, 2.0, expected_clusters_length, distance_metric_factory<point>::user_defined(user_metric));
}
TEST(utest_ttsas, allocation_one_allocation_sample_simple_01) {
const std::vector<size_t> expected_clusters_length = { 10 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_01), 10.0, 20.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_sample_simple_02) {
const std::vector<size_t> expected_clusters_length = { 5, 8, 10 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_02), 1.0, 2.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_one_allocation_sample_simple_02) {
const std::vector<size_t> expected_clusters_length = { 23 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_02), 10.0, 20.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_sample_simple_03) {
const std::vector<size_t> expected_clusters_length = { 10, 10, 10, 30 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_03), 1.0, 2.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_one_dimension_points_1) {
const std::vector<size_t> expected_clusters_length = { 10, 10 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_07), 1.0, 2.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_one_allocation_one_dimension_points_1) {
const std::vector<size_t> expected_clusters_length = { 20 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_07), 10.0, 20.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_one_dimension_points_2) {
const std::vector<size_t> expected_clusters_length = { 10, 20 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_09), 1.0, 2.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_one_allocation_one_dimension_points_2) {
const std::vector<size_t> expected_clusters_length = { 30 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_09), 10.0, 20.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_three_dimension_points_2) {
const std::vector<size_t> expected_clusters_length = { 10, 10 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_11), 1.0, 2.0, expected_clusters_length);
}
TEST(utest_ttsas, allocation_three_allocation_one_dimension_points_2) {
const std::vector<size_t> expected_clusters_length = { 20 };
template_ttsas_length_process_data(simple_sample_factory::create_sample(SAMPLE_SIMPLE::SAMPLE_SIMPLE_11), 10.0, 20.0, expected_clusters_length);
}
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