Dear all, I am working in a NLP related project so we are using OpenNLP for NER. Our task is to tag the natural language search queries like "Sales by product". We know some features that are used for NER tagging. We aren't find any resource for clear understanding of features. Please share the links for learning the features and then please share how to create customised features. We are eagerly waiting for your reply.
Regards, Rakesh.P