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    • TREC 1999 Adhoc Dataset

    Metadata Updated: September 30, 2025

    The ad hoc retrieval task investigates the performance of systems that search a static set of documents using new questions (called topics in TREC). This task is similar to how a researcher might use a library - the collection is known but the questions likely to be asked are not known. NIST provides the participants approximately 2 gigabytes worth of documents and a set of 50 natural language topic statements. The participants produce a set of queries from the topic statements and run those queries against the documents. The output from this run is the official test result for the ad hoc task. Participants return the best 1000 documents retrieved for each topic to NIST for evaluation. The dataset comprises the documents, the topics, and the annotations of relevant documents.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://trec.nist.gov/pubs/trec8/t8_proceedings.html

    Dates

    Metadata Created Date September 30, 2025
    Metadata Updated Date September 30, 2025

    Metadata Source

    Harvested from Commerce Non Spatial Data.json Harvest Source

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 30, 2025
    Metadata Updated Date September 30, 2025
    Publisher National Institute of Standards and Technology
    Maintainer
    Identifier ark:/88434/mds2-3620
    Data First Published 2025-01-14
    Language en
    Data Last Modified 2024-10-31 00:00:00
    Category Information Technology:Data and informatics
    Public Access Level public
    Bureau Code 006:55
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id f8c77a84-b5f3-49d5-82ed-248a1e8458ba
    Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
    Harvest Source Title Commerce Non Spatial Data.json Harvest Source
    Homepage URL https://data.nist.gov/od/id/mds2-3620
    License https://www.nist.gov/open/license
    Program Code 006:045
    Related Documents https://trec.nist.gov/pubs/trec8/t8_proceedings.html
    Source Datajson Identifier True
    Source Hash ed3de852e66520badbe6382176ed64ed17ba129447bf9e941d6da02d755f3a53
    Source Schema Version 1.1

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