<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>We present a hybrid HMM-based PoS tagger for Old Church Slavonic. The training corpus is a portion of one text, Codex Marianus (40k) annotated with the Universal Dependencies UPOS tags in the UD-PROIEL treebank. We perform a number of experiments in within-domain and out-of-domain settings, in which the remaining part of Codex Marianus serves as a within-domain test set, and Kiev Folia is used as an out-of-domain test set. Analysing by-PoS-class precision and sensitivity in each run, we combine a simple context-free n-gram-based approach and Hidden Markov method (HMM), and added linguistic rules for specific cases such as punctuation and digits. While the model achieves a rather non-impressive accuracy of 81% in in-domain settings, we observe an accuracy of 51% in out-of-domain evaluation, which is comparable to the results of large neural architectures based on pre-trained contextual embeddings.</p>
</abstract>

We present a hybrid HMM-based PoS tagger for Old Church Slavonic. The training corpus is a portion of one text, Codex Marianus (40k) annotated with the Universal Dependencies UPOS tags in the UD-PROIEL treebank. We perform a number of experiments in within-domain and out-of-domain settings, in which the remaining part of Codex Marianus serves as a within-domain test set, and Kiev Folia is used as an out-of-domain test set. Analysing by-PoS-class precision and sensitivity in each run, we combine a simple context-free n-gram-based approach and Hidden Markov method (HMM), and added linguistic rules for specific cases such as punctuation and digits. While the model achieves a rather non-impressive accuracy of 81% in in-domain settings, we observe an accuracy of 51% in out-of-domain evaluation, which is comparable to the results of large neural architectures based on pre-trained contextual embeddings.

An HMM-Based PoS Tagger for Old Church Slavonic

National Research University “Higher School of Economics”

Journal of Linguistics/Jazykovedný casopis

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"An HMM-Based PoS Tagger for Old Church Slavonic"}

We present a hybrid HMM-based PoS tagger for Old Church Slavonic. The training corpus is a portion of one text, Codex Marianus (40k) annotated with the...

An HMM-Based PoS Tagger for Old Church Slavonic

Published Online: Dec 30, 2021

Page range: 556 - 567

DOI: https://doi.org/10.2478/jazcas-2021-0051

Keywords
HMM tagger, Old Church Slavonic, PoS tagging, hybrid models, Universal Dependencies

© 2021 Olga Lyashevskaya et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

An HMM-Based PoS Tagger for Old Church Slavonic

Published Online: Dec 30, 2021

Page range: 556 - 567

DOI: https://doi.org/10.2478/jazcas-2021-0051

KeywordsHMM tagger, Old Church Slavonic, PoS tagging, hybrid models, Universal Dependencies

© 2021 Olga Lyashevskaya et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
HMM tagger, Old Church Slavonic, PoS tagging, hybrid models, Universal Dependencies