Machine Learning in Java - Second Edition

Predictive model markup language

Predictive Model Markup Language (PMML) is an XML-based interchange format that allows machine- learning models to be easily shared between applications and systems. Supported models include logistic regression, neural networks, decision trees, naïve Bayes, regression models, and many others. A typical PMML file consists of the following sections:

• Header containing general information
• Data dictionary, describing data types
• Data transformations, specifying steps for normalization, discretization, aggregations, or custom functions
• Model definition, including parameters
• Mining schema listing attributes used by the model
• Targets allowing post-processing of the predicted results
• Output listing fields to be output ...