CEFR C1

inverted index

noun phrase

Meaning

A data structure that maps each unique word or term to its locations in a document or a set of documents, allowing for efficient retrieval of documents that contain a specific word or phrase.

Examples

  • The search engine's inverted index enabled it to return relevant results in a fraction of a second.
  • Creating an inverted index for the entire database took several hours, but it improved query performance significantly.