Incorporating user feedback in a ML model

Question

I have developed a ML model for a classification (0/1) NLP task and deployed it in production environment. The prediction of the model is displayed to users, and the users have

Answer 1

Build a simple, light model(s) that can be updated per feedback. Online Machine learning gives a number of candidates for this

Most good online classifiers are linear. In which case we can have a couple of them and achieve non-linearity by combining them via a small shallow neural net

https://stats.stackexchange.com/questions/126546/nonlinear-dynamic-online-classification-looking-for-an-algorithm