BME Submission for SIGMORPHON 2021 Shared Task 0. A Three Step Training Approach with Data Augmentation for Morphological Inflection
Gábor Szolnok, Botond Barta, Dorina Lakatos, Judit Ács · 2021
We present the BME submission for the SIG-MORPHON 2021 Task 0 Part 1, Generalization Across Typologically Diverse Languages shared task.We use an LSTM encoderdecoder model with three step training that is first trained on all languages, then fine-tuned on each language families and finally finetuned on individual languages.We use a different type of data augmentation technique in the first two steps.Our system outperformed the only other submission.Although it remains worse than the Transformer baseline released by the organizers, our model is simpler and our data augmentation techniques are easily applicable to new languages.We perform ablation studies and show that the augmentation techniques and the three training steps often help but sometimes have a negative effect.Our code is publicly available 1 .