I am trying to classify documents I used the intelligent keyword classifier
But whenever I close the project I should retrain the model again
Is There a method that makes me save the vector of words generated by the classifier
Also, have you tried using this framework for DU provided by UiPath, this should be helpful to use as a base to create any project for documents processing:
You need to use the Classifier Training mechanics. The Document Understanding Process that @sonaliaggarwal47 pointed out should definitely help, as it comes pre-configured with an out-of-the-box example.