NL-Augmenter: A Framework for Task-Sensitive Natural Language Augmentation - Kaustubh Dhole; Varun Gangal; Sebastian Gehrmann; Aadesh Gupta; Zhenhao Li; Saad Mahamood; Abinaya Mahadiran; Simon Mille; Ashish Shrivastava; Samson Tan; Tongshang Wu; Jascha Sohl-Dickstein; et al. (Northern European Journal of Language Technology)