Keyphrase Extraction
Keyphrase extraction analyses text to surface phrases that best summarise what a document is about.
Definition
Keyphrase extraction is the automated identification of important phrases within a document to represent its main topics.
Why It Matters
AI systems analyse sentence structure, term frequency, context, and semantic relevance to detect phrases that best summarise a text. These extracted keyphrases help surface high-value concepts quickly, especially in long or domain-specific content.
In practical workflows, keyphrase extraction supports information retrieval, terminology extraction, document indexing, and summarisation. It is also useful for preparing glossaries and improving discoverability in multilingual knowledge bases.