camspiers / silverstripe-classifierbridge
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Type:silverstripe-module
Requires
- camspiers/statistical-classifier: ~0.8.0
Requires (Dev)
- phpunit/phpunit: ~3.7
This package is auto-updated.
Last update: 2024-10-19 13:36:31 UTC
README
This library helps integrate classification services within SilverStripe sites.
Installation (with composer)
$ composer require camspiers/silverstripe-classifierbridge:dev-master
Usage
Integration via DataList and DataObject
- Implement the Document interface on your DataObject
use Camspiers\StatisticalClassifier\SilverStripe\Document; class MyDataObject extends DataObject implements Document { private static $db = array( 'Content' => 'Text' 'Spam' => 'Boolean' ); public function getCategories() { return array($this->Spam ? 'spam' : 'ham'); } public function getDocument() { return $this->Content; } }
- Use a DataList to retrieve the existing DataObjects and classify a new DataObject
use Camspiers\StatisticalClassifier\Classifier\ComplementNaiveBayes; use Camspiers\StatisticalClassifier\SilverStripe\DataSource; use Camspiers\StatisticalClassifier\SilverStripe\Document; // This DataObject could have been just populate via a form (e.g. $form->saveInto($myDataObject)) $dataObjectToClassify = new MyDataObject( array( 'Content' => 'Some content' ) ); try { // A DataList is passed into a DataSource and then passed into the classifier $classifier = new ComplementNaiveBayes(new DataSource(MyDataObject::get())); if ($classifier->is('spam', $dataObjectToClassify->getDocument())) { // The document is spam // Perhaps set Spam = true on the DataObject and save it } else { // The document isn't spam } } catch (Exception $e) { // Do something with the exception }
Integration via SQLQuery
Using SQLQuery can improve memory usage and execution time, because it bypasses the creation of DataObjects for each record
use Camspiers\StatisticalClassifier\Classifier\ComplementNaiveBayes; use Camspiers\StatisticalClassifier\DataSource\Grouped; use Camspiers\StatisticalClassifier\SilverStripe\SQLQueryDataSource; use Camspiers\StatisticalClassifier\SilverStripe\Document; $spamQuery = new SQLQuery("Content, Spam", "MyDataObject", "Spam = 1"); $hamQuery = new SQLQuery("Content, Spam", "MyDataObject", "Spam = 0"); try { // Create the classifier by using a Grouped data source $classifier = new ComplementNaiveBayes( new Grouped( array( new SQLQueryDataSource("spam", $spamQuery, "Content"), new SQLQueryDataSource("ham", $hamQuery, "Content") ) ) ); if ($classifier->is('spam', "Some content to classify")) { // The document is spam // Perhaps set Spam = true on the DataObject and save it } else { // The document isn't spam } } catch (Exception $e) { // Do something with the exception }
See PHP Classifier for documentation around caching and more advanced topics.