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#ifndef _theplu_yat_classifier_sampler_ |
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#define _theplu_yat_classifier_sampler_ |
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|
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// $Id$ |
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|
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/* |
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Copyright (C) 2006 Jari Häkkinen, Peter Johansson, Markus Ringnér |
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Copyright (C) 2007 Peter Johansson |
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Copyright (C) 2008 Jari Häkkinen, Peter Johansson |
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|
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This file is part of the yat library, http://dev.thep.lu.se/yat |
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|
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The yat library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License as |
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published by the Free Software Foundation; either version 3 of the |
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License, or (at your option) any later version. |
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|
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The yat library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with yat. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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#include "Target.h" |
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#include "yat/utility/Index.h" |
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|
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#include <vector> |
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|
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namespace theplu { |
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namespace yat { |
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namespace classifier { |
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|
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/// |
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/// @brief Interface class for dividing samples into training and |
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/// validation. |
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/// |
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class Sampler |
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{ |
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|
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public: |
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/// |
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/// @brief Constructor |
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/// |
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/// @param target used to balance partitions |
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/// @param N Number of partitions |
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/// |
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Sampler(const Target& target, size_t N); |
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|
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/// |
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/// Destructor (pure virtual destructor) |
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/// |
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virtual ~Sampler() =0; |
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|
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/// |
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/// @return number of partitions |
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/// |
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size_t size(void) const; |
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|
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/// |
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/// @return the targets for the total set |
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/// |
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const Target& target(void) const; |
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|
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/// |
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/// @return training indices |
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/// |
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const utility::Index& |
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training_index(size_t i) const; |
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|
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/// |
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/// @return training target |
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/// |
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/// @note if state is invalid the result is undefined |
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/// |
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const Target& training_target(size_t i) const; |
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|
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/// |
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/// @return validation index |
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/// |
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/// @note if state is invalid the result is undefined |
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/// |
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const utility::Index& validation_index(size_t i) const; |
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|
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/// |
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/// @return validation target |
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/// |
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/// @note if state is invalid the result is undefined |
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/// |
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const Target& validation_target(size_t i) const; |
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|
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protected: |
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/// index of training sets for the partitions |
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std::vector<utility::Index> training_index_; |
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/// Targets for training sets for the partitions |
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std::vector<Target> training_target_; |
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/// index of validation sets for the partitions |
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std::vector<utility::Index> validation_index_; |
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/// Targets for validation sets for the partitions |
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std::vector<Target> validation_target_; |
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|
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private: |
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Target target_; |
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}; |
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|
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}}} // of namespace classifier, yat, and theplu |
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#endif |