The goal of HARD is to achieve high accuracy retrieval from documents by leveraging additional information about the searcher and/or the search context captured using very targeted interaction with the searcher. HARD is being run as an evaluation track within TREC, the Text REtrieval Conference sponsored by NIST.
Here are the guidelines for the TREC 2005 HARD track.
Likely schedule of
Useful links and
is maintained by the UMass Amherst
Center for Intelligent Information Retrieval.