Findings of the WMT 2021 Shared Tasks in Unsupervised MT and Very Low Resource Supervised MT

Jindřich Libovický, Alexander Fraser

WMT 2021

We present the findings of the WMT2021 Shared Tasks in Unsupervised MT
and Very Low Resource Supervised MT. Within the task, the community
studied very low resource translation between German and Upper
Sorbian, unsupervised translation between German and Lower Sorbian and
low resource translation between Russian and Chuvash, all minority
languages with active language communities working on preserving the
languages, who are partners in the evaluation. Thanks to this, we were
able to obtain most digital data available for these languages and
offer them to the task participants. In total, six teams participated
in the shared task. The paper discusses the background, presents the
tasks and results, and discusses best practices for the future.