PMML 4.3  Changes from PMML 4.2.1
General Structure
 Allowed
PROBNUMBER to accept scientific notation.
 Added GaussianProcess to
MODELELEMENT
 Added BayesianNetwork to
MODELELEMENT
Mining Schema
 Clarified when
lowValue and
highValue are required.
Builtin Functions
 Added new functions:
normalCDF
 Normal Cumulative Density Function
normalPDF
 Normal Probability Density Function
stdNormalCDF
 Standard Cumulative Density Function
stdNormalPDF
 Standards Normal Probability Density Function
erf
 Related Error Function
normalIDF
 Normal Inverse Distribution Function
stdNormalIDF
 Standard Normal Inverse Distribution Function
 Corrections to documentation.
Output
 Made
dataType of OutputField required.
 Added a new attribute
isFinalResult to
OutputField .
 Added mentions of KNN models with regard to the
rank attribute and the entityId
feature.
Model Explanation
 Allowed multiple instances of
LiftData in
PredictiveModelQuality .
Scope of Fields
 Allowed an
OutputField with
feature="transformedValue" to forward reference a
derived field defined in LocalTransformations .
Association Rules
 Added new attributes
field and category
to Item element.
 Augmented documentation.
General Regression
 Added clarifications to the documentation.
KNN
 Corrected record and field counts in Scoring Example 1.
Multiple Models
 Clarifications to various model combination methods.
 Defined how predicted probabilities are to be calculated for the
following model combination methods:
majorityVote
weightedMajorityVote
average
weightedAverage
max
median
Neural Networks
 New activation function
rectifier .
Support Vector Machines
 Added a new attribute
maxWins to
SupportVectorMachineModel .
 Added a new element
CategoricalPredictor to
VectorFields .
 Dropped an inadvertent requirement to specify
classificationMethod on regression models.
 Added
CategoricalPredictor as an alternative
to FieldRef in
VectorFields element.
Regression
 Major changes to the documentation regarding classification
model scoring.
Rule Sets
 Minor corrections to the documentation.
