An NLP library for building bots, with entity extraction, sentiment analysis, automatic language identify, and so more.

"NLP.js" is a general natural language utility for nodejs. Currently supporting:

• Guess the language of a phrase
• Fast Levenshtein distance of two strings
• Search the best substring of a string with less Levenshtein distance to a given pattern.
• Get stemmers and tokenizers for several languages.
• Sentiment Analysis for phrases (with negation support).
• Named Entity Recognition and management, multi-language support, and acceptance of similar strings, so the introduced text does not need to be exact.
• Natural Language Processing Classifier, to classify an utterance into intents.
• NLP Manager: a tool able to manage several languages, the Named Entities for each language, the utterances, and intents for the training of the classifier, and for a given utterance return the entity extraction, the intent classification and the sentiment analysis. Also, it is able to maintain a Natural Language Generation Manager for the answers.
• 40 languages natively supported, 104 languages supported with BERT integration
• Any other language is supported through tokenization, even fantasy languages