Active² Learning: Actively reducing redundancies in Active Learning methods for Sequence Tagging and Machine Translation Rishi Hazra author Parag Dutta author Shubham Gupta author Mohammed Abdul Qaathir author Ambedkar Dukkipati author 2021-06 text Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies Kristina Toutanova editor Anna Rumshisky editor Luke Zettlemoyer editor Dilek Hakkani-Tur editor Iz Beltagy editor Steven Bethard editor Ryan Cotterell editor Tanmoy Chakraborty editor Yichao Zhou editor Association for Computational Linguistics Online conference publication hazra-etal-2021-active2 10.18653/v1/2021.naacl-main.159 https://aclanthology.org/2021.naacl-main.159/ 2021-06 1982 1995