| Tool | Purpose | |------|---------| | | Industrial-strength NLP in Python (fast, production-ready) | | NLTK | Academic/educational – wide algorithms, slower | | Hugging Face Transformers | Access thousands of pretrained models (BERT, GPT, Llama) | | Stanford CoreNLP | Java-based, deep linguistic analysis | | Gensim | Topic modeling, word embeddings | | LangChain | Build applications around LLMs (chains, agents, RAG) | | Ollama / vLLM | Run open-source LLMs locally (Llama 3, Mistral, etc.) | 9. Simple Python Example (Sentiment Analysis) Using Hugging Face Transformers:
1. What is NLP? Natural Language Processing (NLP) is a subfield of artificial intelligence (AI) that gives computers the ability to understand, interpret, generate, and derive meaning from human language (text or speech). It sits at the intersection of computer science, linguistics, and machine learning. natural language processing
Human language is ambiguous, context-dependent, and constantly evolving. Unlike structured data (e.g., spreadsheets), natural language requires handling sarcasm, idioms, synonyms, and unstated assumptions. 2. Key Levels of Linguistic Analysis NLP systems typically process language across several layers: | Tool | Purpose | |------|---------| | |