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we are trying to implement name entity recognition on millions of comments/feedback and the process appears to be slow. We are thinking of removing stop words/frequent words from the texts and apply ner on them. Does removing stop words affect the accuracy of ner?
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stanford-nlp
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I think it's plausible you will get respectable F1 scores if you run on a sentence with the stop words removed. Ultimately you will have to experiment with it and see if the quality is acceptable for your needs.