TREC Total Recall Corpora

The Total Recall track ran in TREC 2015 and 2016, and was aimed at developing systems and algorithms for recall-oriented search: situations where you need to find all the relevant items.

Total Recall 2015

• Task guidelines
• Overview paper
• AtHome1 collection
• AtHome2 collection
• AtHome3 collection
• Topics and relevance judgments for all three collections

Total Recall 2016

• Task guidelines
• Overview paper
• AtHome4 collection
• Topics, relevance judgments, facets, and "prels" judgments for 2016.

Getting the data

The topics and relevance judgments can be downloaded directly.

To get the AtHome collections, you must complete the Total Recall Organizational Usage Agreement and return it to [email protected]
The usage agreement requires you to have local users of the data sign the Individual Usage Agreement, which you keep on file at your organization. (If you are just an individual not in a larger organization, the organizational agreement is sufficient.)

This page created on November 8, 2017 Last updated on April 23, 2020 Contact: [email protected]