TY - CONF T1 - Evaluating Passage Retrieval Approaches for Question Answering. JO - ECIR UR - https://doi.org/10.1007/b96895 PY - 2004/01/01 AU - Roberts I AU - Gaizauskas RJ ED - McDonald S ED - Tait J PB - Springer VL - 2997 SP - 72 EP - 84 Y2 - 2024/12/22 ER -