Jingle BERT, Frozen All the Way: Freezing Layers to Identify CEFR Levels of Second Language Learners Using BERT Ricardo Muñoz Sánchez author David Alfter author Simon Dobnik author Maria Irena Szawerna author Elena Volodina author 2024-10 text Proceedings of the 13th Workshop on Natural Language Processing for Computer Assisted Language Learning Thomas Gaillat editor Cyriel Mallart editor Fabienne Moreau editor Jen-Yu Li editor Griselda Drouet editor David Alfter editor Elena Volodina editor Arne Jönsson editor LiU Electronic Press Rennes, France conference publication sanchez-etal-2024-jingle https://aclanthology.org/2024.nlp4call-1.11/ 2024-10 137 152