Recipe for Zero-shot POS Tagging: Is It Useful in Realistic Scenarios?

• URL: http://arxiv.org/abs/2410.10576v1
• Date: Mon, 14 Oct 2024 14:51:13 GMT
• Title: Recipe for Zero-shot POS Tagging: Is It Useful in Realistic Scenarios?
• Authors: Zeno Vandenbulcke, Lukas Vermeire, Miryam de Lhoneux,
• Abstract summary: This paper focuses on POS tagging for languages with limited data. We seek to identify the characteristics of datasets that make them favourable for training POS tagging models without using any labelled training data from the target language.
• Score: 4.959459199361905
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: POS tagging plays a fundamental role in numerous applications. While POS taggers are highly accurate in well-resourced settings, they lag behind in cases of limited or missing training data. This paper focuses on POS tagging for languages with limited data. We seek to identify the characteristics of datasets that make them favourable for training POS tagging models without using any labelled training data from the target language. This is a zero-shot approach. We compare the accuracies of a multilingual large language model (mBERT) fine-tuned on one or more languages related to the target language. Additionally, we compare these results with models trained directly on the target language itself. We do this for three target low-resource languages. Our research highlights the importance of accurate dataset selection for effective zero-shot POS tagging. Particularly, a strong linguistic relationship and high-quality datasets ensure optimal results. For extremely low-resource languages, zero-shot models prove to be a viable option.

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