Keyphrase extraction is the process of identifying and extracting multiple words or phrases that capture the main ideas and essence of a document or text. These keyphrases are typically terms that represent the core topics or themes in the content, allowing for a concise summary of the document.
This technique is widely used in natural language processing (NLP) for tasks such as content categorization, search engine optimization (SEO), document indexing, and information retrieval. Keyphrase extraction helps in identifying the most important concepts and enables machines to process, organize, and understand large volumes of text more efficiently.