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ForestTrainer.h
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ForestTrainer.h
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/*-------------------------------------------------------------------------------
This file is part of generalized random forest (grf).
grf 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.
grf 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 grf. If not, see <http://www.gnu.org/licenses/>.
#-------------------------------------------------------------------------------*/
#ifndef GRF_FORESTTRAINER_H
#define GRF_FORESTTRAINER_H
#include <memory>
#include "prediction/OptimizedPredictionStrategy.h"
#include "relabeling/RelabelingStrategy.h"
#include "splitting/factory/SplittingRuleFactory.h"
#include "tree/Tree.h"
#include "tree/TreeTrainer.h"
#include "forest/Forest.h"
#include "ForestOptions.h"
namespace grf {
class ForestTrainer {
public:
ForestTrainer(std::unique_ptr<RelabelingStrategy> relabeling_strategy,
std::unique_ptr<SplittingRuleFactory> splitting_rule_factory,
std::unique_ptr<OptimizedPredictionStrategy> prediction_strategy);
Forest train(const Data& data, const ForestOptions& options) const;
private:
std::vector<std::unique_ptr<Tree>> train_trees(const Data& data,
const ForestOptions& options) const;
std::vector<std::unique_ptr<Tree>> train_batch(
size_t start,
size_t num_trees,
const Data& data,
const ForestOptions& options) const;
std::unique_ptr<Tree> train_tree(const Data& data,
RandomSampler& sampler,
const ForestOptions& options) const;
std::vector<std::unique_ptr<Tree>> train_ci_group(const Data& data,
RandomSampler& sampler,
const ForestOptions& options) const;
TreeTrainer tree_trainer;
};
} // namespace grf
#endif //GRF_FORESTTRAINER_H