DalTREC 2004: Question Answering Using Regular Expression Rewriting

This is the first year that the Dalhousie University participated in TREC. We submitted three runs for the QA track. Our evaluation results are generally below the median (with one exception) but seem to be significantly higher than the worst scores, which is within our expectations considering a limited time spent on developing the system. Our approach was based on the regular expression rewriting and the use of external search engines (MultiText and PRISE). One run used Web-reinforced search.

• Type: Conference
• Year: 2004
• Where: TREC
• Authors: Vlado Keselj, Anthony Cox
• Keywords: Dalhousie University, External Search Engines, QA Track, TREC 2004, TREC 2008