SVM::train
(PECL svm >= 0.1.0)
SVM::train — Create a SVMModel based on training data
Description
Train a support vector machine based on the supplied training data.
Parameters
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problem -
The problem can be provided in three different ways. An array, where the data should start with the class label (usually 1 or -1) then followed by a sparse data set of dimension => data pairs. A URL to a file containing a SVM Light formatted problem, with the each line being a new training example, the start of each line containing the class (1, -1) then a series of tab separated data values shows as key:value. A opened stream pointing to a data source formatted as in the file above.
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weights -
Weights are an optional set of weighting parameters for the different classes, to help account for unbalanced training sets. For example, if the classes were 1 and -1, and -1 had significantly more example than one, the weight for -1 could be 0.5. Weights should be in the range 0-1.
Return Values
Returns an SVMModel that can be used to classify previously unseen data. Throws SVMException on error
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Другие службы
- Support Vector Machine
- Функция SVM::__construct() - Construct a new SVM object
- Функция SVM::crossvalidate() - Test training params on subsets of the training data.
- Функция SVM::getOptions() - Return the current training parameters
- Функция SVM::setOptions() - Set training parameters
- Функция SVM::train() - Create a SVMModel based on training data
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