Check this: https://opennlp.apache.org/documentation/1.6.0/manual/opennlp.html#tools.namefind.training.featuregen Also you can learn from the javadocs: https://opennlp.apache.org/documentation/1.6.0/apidocs/opennlp-tools/opennlp/tools/util/featuregen/package-summary.html
regards William 2016-06-21 14:03 GMT-03:00 <rakeshbe...@gmail.com>: > 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