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Demantra Engine Forecast Validation Is Not Working As Expected Warning:Seasonal model has series length (xx) less than season (xx) Not accurate validation (Doc ID 2409783.1)

Last updated on JUNE 11, 2018

Applies to:

Oracle Demantra Advanced Forecasting and Demand Modeling - Version and later
Information in this document applies to any platform.


On : version, Engine

Demantra engine forecast validation is not working as expected

When running the Demantra engine on, the engine is throwing warnings like
It appears to not be working as expected.


 "Forecast validation: Seasonal model has series length (33) less than season (52). Not accurate validation".

The issue can be reproduced at will with the following steps:
Steps to Reproduce:
1. Log into Business Modeler.
2. Navigate to Engine > Model Library.
3. Modify Min Len values for some of the models from 52 to less than 52 weeks (1 year) e.g. 26.
4. Run engine.

The issue has the following business impact:
Due to this issue, users cannot get the forecast across to the planners




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