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Discrepancies in PMML model output on different systems

The same PMML model can produce different outputs when it is run on different systems.

Cause

This problem occurs when one of the following conditions applies:

  • Input values for the model are missing or invalid.
  • The PMML algorithms are programmed differently in the Pega Platform™ PMML engine and other third-party systems.

Solution - Missing or invalid input values for the model

For the solution, see Errors during the PMML execution.

Solution - PMML algorithms in the Pega Platform PMML engine

In some cases, third-party tools have deviated from the PMML standard, which might be the cause of discrepancies. The Pega Platform engine adheres to the PMML standard to execute the PMML definition. To make sure that there is no problem with the PMML engine on your instance of Pega Platform, ask a PMML developer and system architect to investigate the discrepancies that occurred.

Pega Platform 7.1.1 - 8.3.1 System Architect Lead System Architect Decision Management
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