What is NLP and Its Tasks?

Natural Language Processing (NLP) is a branch of artificial intelligence (AI) focused on the interaction between computers and human language. It involves the ability of machines to understand, interpret, generate, and respond to natural language in a meaningful way. NLP combines computational linguistics with machine learning, deep learning, and statistics to enable machines to process human language effectively.
Key tasks in NLP:

1. Text Classification: Categorizing text into predefined labels (e.g., spam detection in emails).
2. Named Entity Recognition : Identifying and classifying key information in text (e.g., names of people, places, dates).
3. Sentiment Analysis: Determining the sentiment behind a text (e.g., positive, negative, or neutral tone in social media posts).
4. Machine Translation: Automatically translating text from one language to another (e.g., Google Translate).
5. Speech Recognition: Converting spoken language into text (e.g., virtual assistants like Siri or Alexa).
6. Text Summarization: Generating a concise summary of a longer document.
7. Language Generation: Producing natural language text from structured data (e.g., chatbots, automated content generation).