Abstract
We describe the NYU-CUBoulder systems for the SIGMORPHON 2020 Task 0 on typologically diverse morphological inflection and Task 2 on unsupervised morphological paradigm completion. The former consists of generating morphological inflections from a lemma and a set of morphosyntactic features describing the target form. The latter requires generating entire paradigms for a set of given lemmas from raw text alone. We model morphological inflection as a sequence-to-sequence problem, where the input is the sequence of the lemma’s characters with morphological tags, and the output is the sequence of the inflected form’s characters. First, we apply a transformer model to the task. Second, as inflected forms share most characters with the lemma, we further propose a pointer-generator transformer model to allow easy copying of input characters.- Anthology ID:
- 2020.sigmorphon-1.8
- Volume:
- Proceedings of the 17th SIGMORPHON Workshop on Computational Research in Phonetics, Phonology, and Morphology
- Month:
- July
- Year:
- 2020
- Address:
- Online
- Editors:
- Garrett Nicolai, Kyle Gorman, Ryan Cotterell
- Venue:
- SIGMORPHON
- SIG:
- SIGMORPHON
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 90–98
- Language:
- URL:
- https://aclanthology.org/2020.sigmorphon-1.8
- DOI:
- 10.18653/v1/2020.sigmorphon-1.8
- Cite (ACL):
- Assaf Singer and Katharina Kann. 2020. The NYU-CUBoulder Systems for SIGMORPHON 2020 Task 0 and Task 2. In Proceedings of the 17th SIGMORPHON Workshop on Computational Research in Phonetics, Phonology, and Morphology, pages 90–98, Online. Association for Computational Linguistics.
- Cite (Informal):
- The NYU-CUBoulder Systems for SIGMORPHON 2020 Task 0 and Task 2 (Singer & Kann, SIGMORPHON 2020)
- PDF:
- https://preview.aclanthology.org/nschneid-patch-2/2020.sigmorphon-1.8.pdf