TY - JOUR T1 - Adapting SVM for data sparseness and imbalance: A case study in information extraction JO - Natural Language Engineering PY - 2009/01/01 AU - Li Y AU - Bontcheva K AU - Cunningham H ED - DO - DOI: 10.1017/S1351324908004968 VL - 15 IS - 2 SP - 241 EP - 271 Y2 - 2024/12/22 ER -