Natural Language Processing has been a hot field as most of the data coming from the side of the user is in unstructured form like free text, whether it is user comments (Facebook, Instagram), chats (Whatsapp, Hike), product reviews (Amazon, Flipkart) and the list can go on. There are a number of problems with this sort of data: wrong spellings, slang, emojis, etc. making the preprocessing of text data an extremely difficult task.
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