classification - How to classify chat text when there is no Training data? -


i have use case in chat text classified. want use documentcategorizer in apache opennlp categorize chat. must have training data should have chats classified. have manually categorize hundreds of chats prepare training , test data? else can do? intend chat categories service related problems. list of categories domain specific. should provider of data, provide me categorized chat data? thanks, in advance.

by definition, cannot have classification problem without labelled data. either labels (at least part of) data, or should try address problem in different way.

-- edited add examples of how address problem without classifying:

in general, depending on specific task can try solve "classification" problem via clustering or/and document or term matching. clustering group documents related same topic, while term matching observe documents refer specific terms. if no training data available, have knowledge problem, either method, or combination between them might enough information need.

for specific problem, start trying cluster chats.


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