Utilizing coarse-grained data in low-data settings for event extraction

Osman Mutlu

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arXiv · 2205.05468

Utilizing coarse-grained data in low-data settings for event extraction

Osman Mutlu

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Abstract

Annotating text data for event information extraction systems is hard, expensive, and error-prone. We investigate the feasibility of integrating coarse-grained data (document or sentence labels), which is far more feasible to obtain, instead of annotating more documents. We utilize a multi-task model with two auxiliary tasks, document and sentence binary classification, in addition to the main task of token classification. We perform a series of experiments with varying data regimes for the aforementioned integration. Results show that while introducing extra coarse-grained data offers greater improvement and robustness, a gain is still possible with only the addition of negative documents that have no information on any event.

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Osman Mutlu. 2022-05-11. Utilizing coarse-grained data in low-data settings for event extraction. https://arxiv.org/abs/2205.05468

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