The Retrieval Group

The Retrieval Group of the Information Access Division works with industry, academia and other government agencies to promote the use of more effective and efficient techniques for manipulating (largely) unstructured textual information, especially the browsing, searching, and presentation of that information.
Activities (grouped into 4 major areas):
  • Encourage retrieval research involving large, unstructured text files by providing test collections and organizing the TREC conference and its proceedings
  • Continue to create new test collections, focusing mainly on collections to support specific information retrieval sub-tasks such as cross-language retrieval and multimedia retrieval
  • Develop better evaluation methodology for information access, including improved evaluation measures for comparing systems using test collections and new evaluation measures for interactive searching and browsing operations
  • Enable faster development of prototype (commercial, academic and government) retrieval systems by distribution of a basic state-of-the-art search engine (the PRISE system) that includes implementation of a Z39.50 client/server

Projects and Activities

Related Projects and Activities

Papers and Presentations

IR Tools

Sites of Interest


The Retrieval Group is part of the Information Access Division (IAD),
Information Technology Laboratory (ITL), at

National Institute of Standards and Technology Home Page
NIST is an agency of the U.S. Commerce Department

Search IAD Webspace:

Retrieval Group Manager: Ellen Voorhees
Last updated: Wednesday, 27-Nov-2013 23:45:37 EST
Date created: Wednesday, 03-May-14
privacy policy / security notice / accessibility statement
disclaimer / FOIA