How to retrain Alteryx predictive model?

[mohamedhussen]

Hello, 

I trained the Alteryx Boosted Model on my data before and save the model to yxdb file. now I'm getting new data and need to fine-tune the model and retrain it to the new data so how can I fine-tune this model in Alteryx?

Also, Is there a way to save this model and use it inside my python code to make predictions?

Thanks

[fmvizcaino]

Hi @mohamedhussen ,

The model customization can be found in the second tab of the boosted model, you can't fine tune the model after saving it to a yxdb file, you need to do it before.

You can create a workflow with the boosted model and use alongside a python tool, but it is not possible to export the model and use inside python.

Best,

Fernando Vizcaino

[CharlieS]

Hi @mohamedhussen 

Each time you run the workflow, the model is trained based on the input data and the workflow configuration/setting. If either the data or the settings change (like @fmvizcaino  outlined above), you must save off the model object .yxdb to retain each version of the model. 

If you want to dissect the information within each model object, there's a bit of R you can use to view/extract the values of interest. Here's a post of mine outlining that process:

https://community.alteryx.com/t5/Alteryx-Designer-Discussions/Extract-the-logic-behind-a-pedictive-m... 

However, it will likely be the case that a boosted model has too many attributes for this decomposition method to be useful. It's worth a shot, but it typically more useful on other model types. 

[mohamedhussen]

Hi @fmvizcaino 

Thanks for your reply

So to fine-tune my model I need to train it with the old data and new data together, right? and there is no way to apply transfer learning on the models that I trained before with Alteryx predictive models? 

[fmvizcaino · Accepted solution]

Hi @mohamedhussen ,

Yes, you always need to use old + new data to recreate your model. 

Unfortunately, there is no way of doing transfer learning.

If you have the intelligence suite package (paid add-on), you can generate the python code from your model and then use the python tool to do transfer learning, I think. But the assisted modelling, which gives you the ability to do it doesn't have all the visual models Alteryx have yet.

https://help.alteryx.com/pt-br/current/designer/alteryx-intelligence-suite

Best,

Fernando Vizcaino