How well does active learning actually work? Time-based evaluation of cost-reduction strategies for language documentation. Jason Baldridge author Alexis Palmer author 2009-08 text Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Philipp Koehn editor Rada Mihalcea editor Association for Computational Linguistics Singapore conference publication baldridge-palmer-2009-well https://aclanthology.org/D09-1031/ 2009-08 296 305