BioRED: A Comprehensive Biomedical Relation Extraction Dataset

• URL: http://arxiv.org/abs/2204.04263v1
• Date: Fri, 8 Apr 2022 19:23:49 GMT
• Title: BioRED: A Comprehensive Biomedical Relation Extraction Dataset
• Authors: Ling Luo, Po-Ting Lai, Chih-Hsuan Wei, Cecilia N Arighi, Zhiyong Lu
• Abstract summary: We present BioRED, a first-of-its-kind biomedical RE corpus with multiple entity types and relation pairs. We label each relation as describing either a novel finding or previously known background knowledge, enabling automated algorithms to differentiate between novel and background information. Our results show that while existing approaches can reach high performance on the NER task, there is much room for improvement for the RE task.
• Score: 6.915371362219944
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Automated relation extraction (RE) from biomedical literature is critical for many downstream text mining applications in both research and real-world settings. However, most existing benchmarking datasets for bio-medical RE only focus on relations of a single type (e.g., protein-protein interactions) at the sentence level, greatly limiting the development of RE systems in biomedicine. In this work, we first review commonly used named entity recognition (NER) and RE datasets. Then we present BioRED, a first-of-its-kind biomedical RE corpus with multiple entity types (e.g., gene/protein, disease, chemical) and relation pairs (e.g., gene-disease; chemical-chemical), on a set of 600 PubMed articles. Further, we label each relation as describing either a novel finding or previously known background knowledge, enabling automated algorithms to differentiate between novel and background information. We assess the utility of BioRED by benchmarking several existing state-of-the-art methods, including BERT-based models, on the NER and RE tasks. Our results show that while existing approaches can reach high performance on the NER task (F-score of 89.3%), there is much room for improvement for the RE task, especially when extracting novel relations (F-score of 47.7%). Our experiments also demonstrate that such a comprehensive dataset can successfully facilitate the development of more accurate, efficient, and robust RE systems for biomedicine.

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