Proceedings of the 19th International Workshop on Treebanks and Linguistic Theories, 2020
We investigate part of speech (POS) tagging for Chaghatay, a historical language with a considera... more We investigate part of speech (POS) tagging for Chaghatay, a historical language with a considerable amount of morphology but few available resources such as POS annotated corpora. In a situation where we have little training data but a large POS tagset, it is not obvious which method will be best to obtain an accurate POS tagger. We experiment with a conditional random field and a Recurrent Neural Network, augmenting the models with coarse grained POS tag information, and by utilizing additional data, either additional unannotated data used to train a language model or annotated data from a modern relative, Uyghur. Our results show that the combination of an RNN and pretraining with coarse grained POS tags reaches the highest accuracy of 76.17%.
Proceedings of the 19th International Workshop on Treebanks and Linguistic Theories, 2020
We investigate part of speech (POS) tagging for Chaghatay, a historical language with a considera... more We investigate part of speech (POS) tagging for Chaghatay, a historical language with a considerable amount of morphology but few available resources such as POS annotated corpora. In a situation where we have little training data but a large POS tagset, it is not obvious which method will be best to obtain an accurate POS tagger. We experiment with a conditional random field and a Recurrent Neural Network, augmenting the models with coarse grained POS tag information, and by utilizing additional data, either additional unannotated data used to train a language model or annotated data from a modern relative, Uyghur. Our results show that the combination of an RNN and pretraining with coarse grained POS tags reaches the highest accuracy of 76.17%.
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