TY - CONF T1 - A Data Driven Approach to Query Expansion in Question Answering JO - Proc. IR4QA Workshop (2008) 34-41 UR - http://eprints.whiterose.ac.uk/113896/ PY - 2008/08/01 AU - Derczynski L AU - Wang J AU - Gaizauskas R AU - Greenwood MA ED - Y2 - 2024/12/23 ER -