Information Retrieval

Description

<p>Information Retrieval (IR) is the process of searching, retrieving, and ranking relevant information from large datasets or documents based on user queries. It uses techniques like keyword matching, vector space models, and deep learning-based retrieval systems. Applications include search engines, document retrieval, question-answering systems, and recommendation systems. Efficient IR relies on indexing, ranking algorithms, and relevance feedback to improve accuracy.</p>