Overview of NLP | Generative AI Tutorial for Beginner | Gen Ai Tutorial [Updated 2024] - igmGuru

1. Definition: NLP is a subfield of artificial intelligence (AI) that focuses on the interaction between computers and humans using natural language.

2. Objectives: Understand and interpret human language by enabling machines to read, decipher, and derive meaning from text or speech.
Enable machines to generate human-like language.

3. Key Components:

Tokenization: Breaking down text into individual words or phrases (tokens).
Part-of-Speech Tagging: Assigning grammatical categories (e.g., noun, verb) to words in a sentence.
Named Entity Recognition (NER): Identifying entities such as names, locations, organizations, etc., in text.
Syntax and Parsing: Analyzing the grammatical structure of sentences.
Sentiment Analysis: Determining the emotional tone of a piece of text.
Machine Translation: Translating text from one language to another.

4. Challenges in NLP:

Ambiguity: Words and phrases can have multiple meanings.
Context: The meaning of a word can change based on the context in which it is used.
Understanding Idioms and Colloquialisms: Capturing the nuances of informal language expressions.

5. Applications:

Chatbots and Virtual Assistants: Conversational interfaces for interacting with users.
Text Summarization: Creating concise summaries of longer texts.
Sentiment Analysis: Analyzing opinions expressed in text (e.g., product reviews).
Speech Recognition: Converting spoken language into text.
Language Translation: Translating text from one language to another.

6. Techniques and Approaches:

Machine Learning: Many NLP tasks involve the use of machine learning algorithms, especially deep learning models like recurrent neural networks (RNNs) and transformers.
Rule-based Systems: Traditional approaches use predefined rules and linguistic knowledge.
Statistical Models: Statistical techniques for language modeling and prediction.

7. Recent Advances:

Transformer Models: Architectures like BERT, GPT, and T5 have achieved state-of-the-art performance in various NLP tasks.
Transfer Learning: Pretraining models on large datasets and fine-tuning for specific tasks.
Zero-shot Learning: Models capable of performing tasks without task-specific training data.

NLP has made significant strides in recent years, with applications in various industries, including healthcare, finance, customer service, and more. The ongoing research in the field continues to push the boundaries of what is possible in natural language understanding and generation.