What is Natural Language Processing?

Natural Language Processing

Definition The field of AI focused on enabling computers to understand, interpret, and generate human language. NLP encompasses tasks such as translation, summarization, sentiment analysis, question answering, and named-entity recognition.

In Depth

Early NLP relied on hand-crafted rules and statistical methods like TF-IDF and n-gram models. The transformer revolution transformed NLP into a pre-train-then-fine-tune discipline, with LLMs achieving human-level or better performance on many benchmarks. NLP is now embedded in search engines, customer service bots, document automation, and clinical record processing.

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