Adding custom features to improve a NER model while training

I have trained a ner model using prodigy with quite good results. However, I wanted to improve the model further by adding custom features e.g., if entity is isupper(), isdigit(), etc. I tried to find some infos about this but I couldn't find. I guess this should be available? especially using Prodigy 1.11.8 and Spacy 3.4.1

hi @fsa!

Check out this related spaCy discussion forum issue to create a custom feature extractor.

Hope this helps!