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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle 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
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// GNU 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Predictions processor interface.
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*
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* @package core_analytics
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* @copyright 2017 David Monllao {@link http://www.davidmonllao.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core_analytics;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Predictors interface.
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*
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* @package core_analytics
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* @copyright 2016 David Monllao {@link http://www.davidmonllao.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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interface predictor {
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/**
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* Is it ready to predict?
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*
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* @return bool
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*/
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public function is_ready();
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/**
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* Delete all stored information of the current model id.
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*
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* This method is called when there are important changes to a model,
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* all previous training algorithms using that version of the model
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* should be deleted.
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*
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* In case you want to perform extra security measures before deleting
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* a directory you can check that $modelversionoutputdir subdirectories
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* can only be named 'execution', 'evaluation' or 'testing'.
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*
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* @param string $uniqueid The site model unique id string
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* @param string $modelversionoutputdir The output dir of this model version
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* @return null
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*/
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public function clear_model($uniqueid, $modelversionoutputdir);
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/**
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* Delete the output directory.
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*
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* This method is called when a model is completely deleted.
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*
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* In case you want to perform extra security measures before deleting
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* a directory you can check that the subdirectories are timestamps
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* (the model version) and each of this subdirectories' subdirectories
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* can only be named 'execution', 'evaluation' or 'testing'.
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*
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* @param string $modeloutputdir The model directory id (parent of all model versions subdirectories).
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* @param string $uniqueid
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* @return null
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*/
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public function delete_output_dir($modeloutputdir, $uniqueid);
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}
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