Hi,

a new UD dataset for Bavarian - called MaiBaam - was recently proposed and released in this LREC-COLING 2024 paper:

Despite the success of the Universal Dependencies (UD) project exemplified by its impressive language breadth, there is still a lack in `within-language breadth': most treebanks focus on standard languages. Even for German, the language with the most annotations in UD, so far no treebank exists for one of its language varieties spoken by over 10M people: Bavarian. To contribute to closing this gap, we present the first multi-dialect Bavarian treebank (MaiBaam) manually annotated with part-of-speech and syntactic dependency information in UD, covering multiple text genres (wiki, fiction, grammar examples, social, non-fiction). We highlight the morphosyntactic differences between the closely-related Bavarian and German and showcase the rich variability of speakers' orthographies. Our corpus includes 15k tokens, covering dialects from all Bavarian-speaking areas spanning three countries. We provide baseline parsing and POS tagging results, which are lower than results obtained on German and vary substantially between different graph-based parsers. To support further research on Bavarian syntax, we make our dataset, language-specific guidelines and code publicly available.

This PR adds support for this dataset :)

Caveats

• PR is based on datasets: add revision support for all Universal Dependencies classes #3420 , so datasets: add revision support for all Universal Dependencies classes #3420 should be merged first
• Due to the fact, that the dataset only comes with a test split, I had to slightly modify the UniversalDependenciesCorpus by allowing a None'd train file
• At the the moment, only the dev branch can be used, as the dataset will be included in an upcoming UD release