Single and multi-objective optimization for feature selection in anaphora resolution Sriparna Saha author Asif Ekbal author Olga Uryupina author Massimo Poesio author 2011-11 text Proceedings of 5th International Joint Conference on Natural Language Processing Haifeng Wang editor David Yarowsky editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication saha-etal-2011-single https://aclanthology.org/I11-1011/ 2011-11 93 101