Active Learning for Sequence Tagging with Deep Pre-trained Models and Bayesian Uncertainty Estimates. - Artem Shelmanov; Dmitry Puzyrev; Lyubov Kupriyanova; Denis Belyakov; Daniil Larionov; Nikita Khromov; Olga Kozlova; Ekaterina Artemova; Dmitry V. Dylov; Alexander Panchenko (EACL, 2021)