WIP, first working genetic algorithm to train the neural network

This commit is contained in:
emeric
2019-11-29 13:24:03 +01:00
parent bf2116ff7e
commit 85129d4a40
26 changed files with 1132 additions and 95 deletions
+19
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@@ -1,3 +1,22 @@
/*
* Copyright (C) 2019 Emeric Poupon
*
* This file is part of LMS.
*
* LMS 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.
*
* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <chrono>
#include <optional>
#include <stdexcept>
@@ -0,0 +1,137 @@
/*
* Copyright (C) 2019 Emeric Poupon
*
* This file is part of LMS.
*
* LMS 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.
*
* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <numeric>
#include "utils/Utils.hpp"
#include "ParallelFor.hpp"
template<typename Individual>
class GeneticAlgorithm
{
public:
using Score = float;
using BreedFunction = std::function<Individual(const Individual&, const Individual&)>;
using MutateFunction = std::function<void(Individual&)>;
using ScoreFunction = std::function<Score(const Individual&)>;
struct Params
{
std::size_t nbWorkers {1};
std::size_t nbGenerations;
float mutationProbability {0.05};
BreedFunction breedFunction;
MutateFunction mutateFunction;
ScoreFunction scoreFunction;
};
GeneticAlgorithm(const Params& params);
// Returns the individual that has the maximum score after processing the requested generations
Individual simulate(const std::vector<Individual>& initialPopulation);
private:
struct ScoredIndividual
{
Individual individual;
std::optional<Score> score {};
};
void scoreAndSortPopulation(std::vector<ScoredIndividual>& population);
Params _params;
};
template<typename Individual>
GeneticAlgorithm<Individual>::GeneticAlgorithm(const Params& params)
: _params {params}
{
}
template<typename Individual>
Individual
GeneticAlgorithm<Individual>::simulate(const std::vector<Individual>& initialPopulation)
{
if (initialPopulation.size() < 10)
throw std::runtime_error("Initial population must has at least 10 elements");
std::vector<ScoredIndividual> scoredPopulation;
scoredPopulation.reserve(initialPopulation.size());
std::transform(std::cbegin(initialPopulation), std::cend(initialPopulation), std::back_inserter(scoredPopulation ),
[](const Individual& individual) { return ScoredIndividual {individual};});
scoreAndSortPopulation(scoredPopulation);
for (std::size_t currentGeneration {}; currentGeneration < _params.nbGenerations; ++currentGeneration)
{
std::cout << "Processing generation " << currentGeneration << "..." << std::endl;
// parent selection (elitist selection)
scoredPopulation.resize(scoredPopulation.size() / 2);
// breed the remaining individuals
std::vector<ScoredIndividual> children;
children.reserve(initialPopulation.size() - scoredPopulation.size());
while (children.size() + scoredPopulation.size() < initialPopulation.size())
{
// Select two random parents
const auto itParent1 {pickRandom(scoredPopulation)};
const auto itParent2 {pickRandom(scoredPopulation)};
if (itParent1 == itParent2)
continue;
ScoredIndividual child {_params.breedFunction(itParent1->individual, itParent2->individual)};
if (getRandom(0, 100) <= _params.mutationProbability * 100)
_params.mutateFunction(child.individual);
children.emplace_back(std::move(child ));
}
scoredPopulation.insert(std::end(scoredPopulation), std::make_move_iterator(std::begin(children)), std::make_move_iterator(std::end(children)));
assert(scoredPopulation.size() == initialPopulation.size());
scoreAndSortPopulation(scoredPopulation);
std::cout << "Current best score = " << *scoredPopulation.front().score << std::endl;
}
std::cout << "Best score = " << *scoredPopulation.front().score << std::endl;
return scoredPopulation.front().individual;
}
template<typename Individual>
void
GeneticAlgorithm<Individual>::scoreAndSortPopulation(std::vector<ScoredIndividual>& scoredPopulation)
{
parallel_foreach(_params.nbWorkers, std::begin(scoredPopulation), std::end(scoredPopulation),
[&](ScoredIndividual& scoredIndividual)
{
if (!scoredIndividual.score)
scoredIndividual.score = _params.scoreFunction(scoredIndividual.individual);
});
std::sort(std::begin(scoredPopulation), std::end(scoredPopulation), [](const ScoredIndividual& a, const ScoredIndividual& b) { return a.score > b.score; });
}
@@ -1,47 +1,354 @@
/*
* Copyright (C) 2019 Emeric Poupon
*
* This file is part of LMS.
*
* LMS 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.
*
* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <iostream>
#include <filesystem>
#include <string>
#include "database/Artist.hpp"
#include "database/Cluster.hpp"
#include "database/Db.hpp"
#include "database/Session.hpp"
#include "database/Release.hpp"
#include "database/SessionPool.hpp"
#include "database/Track.hpp"
#include "similarity/features/SimilarityFeaturesSearcher.hpp"
#include "utils/Config.hpp"
#include "utils/Service.hpp"
#include "utils/StreamLogger.hpp"
#include "GeneticAlgorithm.hpp"
using namespace Similarity;
using SimilarityScore = GeneticAlgorithm<FeatureSettingsMap>::Score;
// An individual is just a FeatureSettingsMap
// The goal is to get the FeatureSettingsMap that maximize the score
const FeatureSettingsMap featuresSettings
{
{ "lowlevel.average_loudness", {1}},
{ "lowlevel.barkbands.mean", {1}},
{ "lowlevel.barkbands.median", {1}},
{ "lowlevel.barkbands.var", {1}},
{ "lowlevel.barkbands_crest.mean", {1}},
{ "lowlevel.barkbands_crest.median", {1}},
{ "lowlevel.barkbands_crest.var", {1}},
{ "lowlevel.barkbands_flatness_db.mean", {1}},
{ "lowlevel.barkbands_flatness_db.median", {1}},
{ "lowlevel.barkbands_flatness_db.var", {1}},
{ "lowlevel.barkbands_kurtosis.mean", {1}},
{ "lowlevel.barkbands_kurtosis.median", {1}},
{ "lowlevel.barkbands_kurtosis.var", {1}},
{ "lowlevel.barkbands_skewness.mean", {1}},
{ "lowlevel.barkbands_skewness.median", {1}},
{ "lowlevel.barkbands_skewness.var", {1}},
{ "lowlevel.barkbands_spread.mean", {1}},
{ "lowlevel.barkbands_spread.median", {1}},
{ "lowlevel.barkbands_spread.var", {1}},
{ "lowlevel.dissonance.mean", {1}},
{ "lowlevel.dissonance.median", {1}},
{ "lowlevel.dissonance.var", {1}},
{ "lowlevel.dynamic_complexity", {1}},
{ "lowlevel.spectral_contrast_coeffs.mean", {1}},
{ "lowlevel.spectral_contrast_coeffs.median", {1}},
{ "lowlevel.spectral_contrast_coeffs.var", {1}},
{ "lowlevel.erbbands.mean", {1}},
{ "lowlevel.erbbands.median", {1}},
{ "lowlevel.erbbands.var", {1}},
{ "lowlevel.gfcc.mean", {1}},
{ "lowlevel.hfc.mean", {1}},
{ "lowlevel.hfc.median", {1}},
{ "lowlevel.hfc.var", {1}},
{ "tonal.hpcp.median", {1}},
{ "lowlevel.melbands.median", {1}},
{ "lowlevel.mfcc.mean", {1}},
{ "lowlevel.pitch_salience.mean", {1}},
{ "lowlevel.pitch_salience.median", {1}},
{ "lowlevel.pitch_salience.var", {1}},
{ "lowlevel.spectral_centroid.mean", {1}},
{ "lowlevel.spectral_centroid.median", {1}},
{ "lowlevel.spectral_centroid.var", {1}},
{ "lowlevel.spectral_complexity.mean", {1}},
{ "lowlevel.spectral_complexity.median", {1}},
{ "lowlevel.spectral_complexity.var", {1}},
{ "lowlevel.spectral_contrast_coeffs.mean", {1}},
{ "lowlevel.spectral_contrast_coeffs.median", {1}},
{ "lowlevel.spectral_contrast_coeffs.var", {1}},
{ "lowlevel.spectral_contrast_valleys.mean", {1}},
{ "lowlevel.spectral_contrast_valleys.median", {1}},
{ "lowlevel.spectral_contrast_valleys.var", {1}},
{ "lowlevel.spectral_decrease.mean", {1}},
{ "lowlevel.spectral_decrease.median", {1}},
{ "lowlevel.spectral_decrease.var", {1}},
{ "lowlevel.spectral_energy.mean", {1}},
{ "lowlevel.spectral_energy.median", {1}},
{ "lowlevel.spectral_energy.var", {1}},
{ "lowlevel.spectral_energyband_high.mean", {1}},
{ "lowlevel.spectral_energyband_high.median", {1}},
{ "lowlevel.spectral_energyband_high.var", {1}},
{ "lowlevel.spectral_energyband_low.mean", {1}},
{ "lowlevel.spectral_energyband_low.median", {1}},
{ "lowlevel.spectral_energyband_low.var", {1}},
{ "lowlevel.spectral_energyband_middle_high.mean", {1}},
{ "lowlevel.spectral_energyband_middle_high.median", {1}},
{ "lowlevel.spectral_energyband_middle_high.var", {1}},
{ "lowlevel.spectral_energyband_middle_low.mean", {1}},
{ "lowlevel.spectral_energyband_middle_low.median", {1}},
{ "lowlevel.spectral_energyband_middle_low.var", {1}},
{ "lowlevel.spectral_entropy.mean", {1}},
{ "lowlevel.spectral_entropy.median", {1}},
{ "lowlevel.spectral_entropy.var", {1}},
{ "lowlevel.spectral_flux.mean", {1}},
{ "lowlevel.spectral_flux.median", {1}},
{ "lowlevel.spectral_flux.var", {1}},
{ "lowlevel.spectral_kurtosis.mean", {1}},
{ "lowlevel.spectral_kurtosis.median", {1}},
{ "lowlevel.spectral_kurtosis.var", {1}},
{ "lowlevel.spectral_rms.mean", {1}},
{ "lowlevel.spectral_rms.median", {1}},
{ "lowlevel.spectral_rms.var", {1}},
{ "lowlevel.spectral_rolloff.mean", {1}},
{ "lowlevel.spectral_rolloff.median", {1}},
{ "lowlevel.spectral_rolloff.var", {1}},
{ "lowlevel.spectral_skewness.mean", {1}},
{ "lowlevel.spectral_skewness.median", {1}},
{ "lowlevel.spectral_skewness.var", {1}},
{ "lowlevel.spectral_spread.mean", {1}},
{ "lowlevel.spectral_spread.median", {1}},
{ "lowlevel.spectral_spread.var", {1}},
{ "lowlevel.zerocrossingrate.mean", {1}},
{ "lowlevel.zerocrossingrate.median", {1}},
{ "lowlevel.zerocrossingrate.var", {1}},
};
static
void
printFeatureSettingsMap(const FeatureSettingsMap& featureSettings)
{
std::cout << "FeatureSettingsMap: (" << featureSettings.size() << " features)" << std::endl;
for (const auto& [name, settings] : featureSettings)
std::cout << "\t" << name << std::endl;
}
static
std::string
trackToString(Database::Session& session, Database::IdType trackId)
{
std::string res;
auto transaction {session.createSharedTransaction()};
Database::Track::pointer track {Database::Track::getById(session, trackId)};
res += track->getName();
if (track->getRelease())
res += " [" + track->getRelease()->getName() + "]";
for (auto artist : track->getArtists())
res += " - " + artist->getName();
for (auto cluster : track->getClusters())
res += " {" + cluster->getType()->getName() + "-"+ cluster->getName() + "}";
return res;
}
static
SimilarityScore
computeTrackScore(Database::Session& session, Database::IdType track1Id, Database::IdType track2Id)
{
SimilarityScore score {};
auto transaction {session.createSharedTransaction()};
auto track1 {Database::Track::getById(session, track1Id)};
auto track2 {Database::Track::getById(session, track2Id)};
if (track1->getRelease() == track2->getRelease())
score += 1;
// Artists in common
{
auto track1ArtistIds {track1->getArtistIds()};
auto track2ArtistIds {track2->getArtistIds()};
std::vector<Database::IdType> commonArtistIds;
std::set_intersection(std::cbegin(track1ArtistIds), std::cend(track1ArtistIds),
std::cbegin(track2ArtistIds), std::cend(track2ArtistIds),
std::back_inserter(commonArtistIds));
score += commonArtistIds.size();
}
// Clusters in common
{
auto track1ClusterIds {track1->getClusterIds()};
auto track2ClusterIds {track2->getClusterIds()};
std::vector<Database::IdType> commonClusterIds;
std::set_intersection(std::cbegin(track1ClusterIds), std::cend(track1ClusterIds),
std::cbegin(track2ClusterIds), std::cend(track2ClusterIds),
std::back_inserter(commonClusterIds));
score += commonClusterIds.size();
}
return score;
}
static
SimilarityScore
computeSimilarityScore(Database::Session& session, const FeatureSettingsMap& featuresSettings)
{
std::cout << "Compute score of: ";
printFeatureSettingsMap(featuresSettings);
std::cout << std::endl;
FeaturesSearcher::TrainSettings trainSettings;
trainSettings.nbIterations = 10;
trainSettings.featureSettingsMap = featuresSettings;
FeaturesSearcher searcher {session, trainSettings};
const std::vector<Database::IdType> trackIds = std::invoke([&]()
{
auto transaction {session.createSharedTransaction()};
return Database::Track::getAllIds(session);
});
SimilarityScore score {};
for (Database::IdType trackId : trackIds)
{
// std::cout << "Processing track '" << trackToString(session, trackId) << "'" << std::endl;
SimilarityScore factor {1};
for (Database::IdType similarTrackId : searcher.getSimilarTracks({trackId}, 3))
{
SimilarityScore trackScore {computeTrackScore(session, trackId, similarTrackId)};
// std::cout << "\tScore = " << trackScore << " (*" << factor << ") with track '" << trackToString(session, similarTrackId) << "'" << std::endl;
trackScore *= factor;
score += trackScore;
factor -= (SimilarityScore {1}/3);
}
}
std::cout << "Total score = " << score << std::endl;
return score;
}
static
FeatureSettingsMap
breedFeatureSettingsMap(const FeatureSettingsMap& a, const FeatureSettingsMap& b)
{
FeatureSettingsMap res;
res.insert(std::cbegin(a), std::cend(a));
res.insert(std::cbegin(b), std::cend(b));
// just kill random elements until size is good
while (res.size() > a.size())
{
const auto itFeature {pickRandom(res)};
res.erase(itFeature);
}
return res;
}
static
void
mutateFeatureSettingsMap(FeatureSettingsMap& a)
{
const std::size_t size {a.size()};
// Replace one of the feature with another one, random
a.erase(pickRandom(a));
while (a.size() != size)
{
const auto itFeatureSetting {pickRandom(featuresSettings)};
a.emplace(itFeatureSetting->first, itFeatureSetting->second);
}
}
int main(int argc, char *argv[])
{
try
{
// log to stdout
ServiceProvider<Logger>::create<StreamLogger>(std::cout);
std::filesystem::path configFilePath {"/etc/lms.conf"};
if (argc >= 2)
configFilePath = std::string(argv[1], 0, 256);
if (argc != 3)
{
std::cerr << "usage: <lms_conf_file> <nb_workers>" << std::endl;
return EXIT_FAILURE;
}
const std::filesystem::path configFilePath {std::string(argv[1], 0, 256)};
const std::size_t nbWorkers = atoi(argv[2]);
ServiceProvider<Config>::create(configFilePath);
Database::Db db {ServiceProvider<Config>::get()->getPath("working-dir") / "lms.db"};
Database::Session session {db};
Database::SessionPool sessionPool {db, nbWorkers};
/* const FeatureSettings
// Create some random settings (i.e random population)
std::vector<FeatureSettingsMap> initialPopulation;
constexpr std::size_t populationSize {100};
constexpr std::size_t nbFeatures {5};
for (std::size_t i {}; i < populationSize; ++i)
{
{ "lowlevel.average_loudness", 1 },
{ "lowlevel.dynamic_complexity", 1 },
{ "lowlevel.spectral_contrast_coeffs.median", 6 },
{ "lowlevel.erbbands.median", 40 },
{ "tonal.hpcp.median", 36 },
{ "lowlevel.melbands.median", 40 },
{ "lowlevel.barkbands.median", 27 },
{ "lowlevel.mfcc.mean", 13 },
{ "lowlevel.gfcc.mean", 13 },
};
FeatureSettingsMap settings;
const TrackFeaturesMap trackFeaturesMap {getAllTrackFeatures(*session)};
while (settings.size() < nbFeatures)
{
const auto itFeatureSetting {pickRandom(featuresSettings)};
settings.emplace(itFeatureSetting->first, itFeatureSetting->second);
}
std::cout << "Found " << trackFeaturesMap.size() << " tracks with features!" << std::endl;*/
initialPopulation.emplace_back(std::move(settings));
}
GeneticAlgorithm<FeatureSettingsMap>::Params params;
params.nbWorkers = nbWorkers;
params.nbGenerations = 300;
params.mutationProbability = 0.2;
params.breedFunction = breedFeatureSettingsMap;
params.mutateFunction = mutateFeatureSettingsMap;
params.scoreFunction =
[&](const FeatureSettingsMap& settings)
{
Database::SessionPool::ScopedSession scopedSession {sessionPool};
return computeSimilarityScore(scopedSession.get(), settings);
};
GeneticAlgorithm<FeatureSettingsMap> geneticAlgorithm {params};
std::cout << "Parameters:\n"
<< "\tnb generations = " << params.nbGenerations << "\n"
<< "\tpopulationSize = " << populationSize << "\n"
<< "\tnbFeatures = " << nbFeatures << "\n"
<< "\tmutationProbability = " << params.mutationProbability << "\n"
<< std::endl;
std::cout << "Starting simulation..." << std::endl;
const FeatureSettingsMap selectedSettings {geneticAlgorithm.simulate(initialPopulation)};
std::cout << "Simulation complete! Best result:" << std::endl;
printFeatureSettingsMap(selectedSettings);
}
catch (std::exception& e)
{
+4
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@@ -10,12 +10,16 @@ lms_similarity_parameters_SOURCES = \
$(top_srcdir)/src/database/Release.cpp \
$(top_srcdir)/src/database/ScanSettings.cpp \
$(top_srcdir)/src/database/Session.cpp \
$(top_srcdir)/src/database/SessionPool.cpp \
$(top_srcdir)/src/database/SimilaritySettings.cpp \
$(top_srcdir)/src/database/SqlQuery.cpp \
$(top_srcdir)/src/database/Track.cpp \
$(top_srcdir)/src/database/User.cpp \
$(top_srcdir)/src/similarity/features/som/DataNormalizer.cpp \
$(top_srcdir)/src/similarity/features/som/Network.cpp \
$(top_srcdir)/src/similarity/features/SimilarityFeaturesCache.cpp \
$(top_srcdir)/src/similarity/features/SimilarityFeaturesSearcher.cpp \
$(top_srcdir)/src/similarity/features/SimilarityFeaturesDefs.cpp \
$(top_srcdir)/src/utils/Config.cpp \
$(top_srcdir)/src/utils/Logger.cpp \
$(top_srcdir)/src/utils/StreamLogger.cpp \
@@ -0,0 +1,47 @@
/*
* Copyright (C) 2019 Emeric Poupon
*
* This file is part of LMS.
*
* LMS 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.
*
* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <functional>
#include <thread>
#include <boost/asio/io_context.hpp>
template <typename It, typename Func>
void parallel_foreach(std::size_t nbWorkers, It begin, It end, Func&& func)
{
if (nbWorkers == 0)
throw std::runtime_error("Invalid worker count");
boost::asio::io_context ioContext;
for (It it {begin}; it != end; ++it)
{
auto refValue {std::ref<typename It::value_type>(*it)};
ioContext.post([refValue, &func]() { std::cout << "EXEC FROM WORKER" << std::endl; func(refValue); std::cout << "END EXEC FROM WORKER" << std::endl; });
}
std::vector<std::thread> threads;
for (std::size_t i {}; i < nbWorkers - 1; ++i)
threads.emplace_back([&]() { ioContext.run(); });
ioContext.run();
for (std::thread& t : threads)
t.join();
}
+60 -3
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@@ -1,3 +1,22 @@
/*
* Copyright (C) 2019 Emeric Poupon
*
* This file is part of LMS.
*
* LMS 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.
*
* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <filesystem>
#include <iostream>
#include <stdexcept>
@@ -25,8 +44,8 @@ int main(int argc, char *argv[])
const FeatureSettingsMap featuresSettings
{
// { "lowlevel.average_loudness", 1 },
// { "lowlevel.dynamic_complexity", 1 },
/* { "lowlevel.average_loudness", 1 },
{ "lowlevel.dynamic_complexity", 1 },
{ "lowlevel.spectral_contrast_coeffs.median", {1} },
{ "lowlevel.erbbands.median", {1} },
{ "tonal.hpcp.median", {1} },
@@ -34,6 +53,41 @@ int main(int argc, char *argv[])
{ "lowlevel.barkbands.median", {1} },
{ "lowlevel.mfcc.mean", {1} },
{ "lowlevel.gfcc.mean", {1} },
*/
{ "lowlevel.spectral_kurtosis.median", {1}},
{ "lowlevel.spectral_kurtosis.mean", {1}},
{ "lowlevel.spectral_complexity.var", {1}},
{ "lowlevel.barkbands.median", {1}},
{ "lowlevel.barkbands_kurtosis.mean", {1}},
/*
{"lowlevel.spectral_centroid.dvar2", {1} },
{"lowlevel.barkbands.median", {1} },
{ "lowlevel.barkbands.dvar", {1} },
{ "lowlevel.spectral_complexity.min", {1} },
{ "lowlevel.pitch_salience.dmean2", {1} },
{ "lowlevel.spectral_contrast_valleys.dmean", {1} },
{ "lowlevel.pitch_salience.max", {1} },
{ "lowlevel.barkbands.mean", {1} },
{ "lowlevel.spectral_complexity.mean", {1} },
{ "lowlevel.dissonance.dvar", {1} },
*/
/*
{ "lowlevel.spectral_energy.dvar", {1} },
{ "lowlevel.barkbands.min", {1} },
{ "lowlevel.spectral_centroid.median", {1} },
{"lowlevel.barkbands_kurtosis.median", {1} },
{"lowlevel.spectral_energy.median", {1} },
{"lowlevel.barkbands.max", {1} },
{"lowlevel.barkbands_spread.var", {1} },
{"lowlevel.spectral_decrease.var", {1} },
{"lowlevel.spectral_contrast_valleys.dmean", {1} },
{"lowlevel.barkbands_crest.mean", {1} },
{"lowlevel.spectral_entropy.var", {1} },
{"lowlevel.barkbands_crest.max", {1} },
{"lowlevel.hfc.dvar", {1} },
{"lowlevel.barkbands_skewness.dvar2", {1} },
{"lowlevel.spectral_centroid.max", {1} },
*/
};
std::filesystem::path configFilePath {"/etc/lms.conf"};
@@ -47,7 +101,10 @@ int main(int argc, char *argv[])
std::cout << "Classifying tracks..." << std::endl;
// may be long...
FeaturesSearcher searcher {session, featuresSettings};
struct FeaturesSearcher::TrainSettings trainSettings;
trainSettings.nbIterations = 10;
trainSettings.featureSettingsMap = featuresSettings;
FeaturesSearcher searcher {session, trainSettings};
std::cout << "Classifying tracks DONE" << std::endl;
const std::vector<Database::IdType> trackIds = std::invoke([&]()