Needle in a Haystack: Reducing the Costs of Annotating Rare-Class Instances in Imbalanced Datasets Emily Jamison author Iryna Gurevych author 2014-12 text Proceedings of the 28th Pacific Asia Conference on Language, Information and Computing Department of Linguistics, Chulalongkorn University Phuket,Thailand conference publication jamison-gurevych-2014-needle https://aclanthology.org/Y14-1030/ 2014-12 244 253