Started to restore clusters based recommendation engine

2020-02-15 15:52:39 +01:00
parent 7f05a1d4e6
commit d1bdaf6203
26 changed files with 326 additions and 177 deletions
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2018 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/>.
+ */
+
+#pragma once
+
+#include "recommendation/IClassifier.hpp"
+
+
+namespace Recommendation
+{
+
+	class ClusterClassifier : public IClassifier
+	{
+		public:
+			ClusterClassifier(Database::Session& session);
+			ClusterClassifier(const ClusterClassifier&) = delete;
+			ClusterClassifier(ClusterClassifier&&) = delete;
+			ClusterClassifier& operator=(const ClusterClassifier&) = delete;
+			ClusterClassifier& operator=(ClusterClassifier&&) = delete;
+
+		private:
+
+			bool isTrackClassified(Database::IdType trackId) const override;
+			bool isReleaseClassified(Database::IdType releaseId) const override;
+			bool isArtistClassified(Database::IdType artistId) const override;
+
+			std::vector<Database::IdType> getSimilarTracksFromTrackList(Database::Session& session, Database::IdType tracklistId, std::size_t maxCount) const override;
+			std::vector<Database::IdType> getSimilarTracks(Database::Session& session, const std::unordered_set<Database::IdType>& tracksId, std::size_t maxCount) const override;
+			std::vector<Database::IdType> getSimilarReleases(Database::Session& session, Database::IdType releaseId, std::size_t maxCount) const override;
+			std::vector<Database::IdType> getSimilarArtists(Database::Session& session, Database::IdType artistId, std::size_t maxCount) const override;
+
+			void classify(Database::Session& session);
+
+			std::unordered_set<Database::IdType>	_classifiedArtists;
+			std::unordered_set<Database::IdType>	_classifiedReleases;
+			std::unordered_set<Database::IdType>	_classifiedTracks;
+};
+
+} // namespace Recommendation
+