Four Approaches to Low-Resource Multilingual NMT: The Helsinki Submission to the AmericasNLP 2023 Shared Task Ona De Gibert author Raúl Vázquez author Mikko Aulamo author Yves Scherrer author Sami Virpioja author Jörg Tiedemann author 2023-07 text Proceedings of the Workshop on Natural Language Processing for Indigenous Languages of the Americas (AmericasNLP) Manuel Mager editor Abteen Ebrahimi editor Arturo Oncevay editor Enora Rice editor Shruti Rijhwani editor Alexis Palmer editor Katharina Kann editor Association for Computational Linguistics Toronto, Canada conference publication de-gibert-etal-2023-four 10.18653/v1/2023.americasnlp-1.20 https://aclanthology.org/2023.americasnlp-1.20/ 2023-07 177 191