In the AI Classifier what is exactly threshold cutoff value, how is it going to affect the predicted categories?

A threshold is the value at which the decision is made, whether to classify that patent under the categories you have selected or not. 

For example, Lets say, you have a set of patent numbers with 2 categories, one is called as category A and the other is called as Category B. If you have set the threshold as 60 then if a record has confidence score of above 60 for category A then the record will be auto-classified under Category A, however, for the records which has confidence score less than 60 then those records will not be auto-classified in category A. This logic will be applied to all the categories that you have in your project.

In PatSeer, we have provided with a wide range of options to choose the threshold value, it ranges from 30 to 90.