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Updating pmml file in Analysis Model/ PMML changes don’t take effect in prediction

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Updating pmml file in Analysis Model/ PMML changes don’t take effect in prediction

Hello,

 

Thingworx provides a way to edit already existing analysis models and their pmml files.

We only want to update/replace the old .pmml file with a new one (updated weights).

However by doing that, the prediction does not change with the new pmml file. We also tried restarting thingworx and thingworx analysis.

We strive to create a generic solution for updating an existing analysis model with a newer version of the pmml model. The input parameters of the used pmml model always stay the same.

 

For the prediction we are using the following analysis provider: TW.AnalysisServices.AnalyticsServer.AnalyticsServerConnector

 

What we also tried so far:

When creating a new analysis model, thingworx seems to store the uploaded *.pmml models in the following location:

/ThingworxStorage/repository/TW.AnalysisServices.ModelRepository/Provider/{ModelName}.pmml

 

However replacing the model in this folder with a newer version (same inputs; only with updated model weights/parameters) does not lead to a change in the prediction. Restarting the platform didn’t work either. Even after deleting the pmml file in the folder the prediction still worked.

 

Does Thingworx cache and/or store the uploaded models to another location/database?

 

How can we update and replace an already in-use pmml model without changing any configuration in thingworx?

1 ACCEPTED SOLUTION

Accepted Solutions
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Re: Updating pmml file in Analysis Model/ PMML changes don’t take effect in prediction

@Max3 ,

 

Thank you for posting to the PTC Community.

 

I see that you have already opened a case with Technical Support requesting the same information.

 

In short, if you want to update an existing model, a new model needs to be re-created/uploaded in Analytics Manager and Analysis Event re-created.

 

We will also reach out to you in the case that you have opened.

 

Regards,

 

Neel

View solution in original post

1 REPLY 1
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Re: Updating pmml file in Analysis Model/ PMML changes don’t take effect in prediction

@Max3 ,

 

Thank you for posting to the PTC Community.

 

I see that you have already opened a case with Technical Support requesting the same information.

 

In short, if you want to update an existing model, a new model needs to be re-created/uploaded in Analytics Manager and Analysis Event re-created.

 

We will also reach out to you in the case that you have opened.

 

Regards,

 

Neel

View solution in original post

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