MDC at SemEval-2023 Task 7: Fine-tuning Transformers for Textual Entailment Prediction and Evidence Retrieval in Clinical Trials

Robert Bevan, Oisín Turbitt, Mouhamad Aboshokor


Abstract
We present our entry to the Multi-evidence Natural Language Inference for Clinical Trial Datatask at SemEval 2023. We submitted entries forboth the evidence retrieval and textual entailment sub-tasks. For the evidence retrieval task,we fine-tuned the PubMedBERT transformermodel to extract relevant evidence from clinicaltrial data given a hypothesis concerning either asingle clinical trial or pair of clinical trials. Ourbest performing model achieved an F1 scoreof 0.804. For the textual entailment task, inwhich systems had to predict whether a hypothesis about either a single clinical trial or pair ofclinical trials is true or false, we fine-tuned theBioLinkBERT transformer model. We passedour evidence retrieval model’s output into ourtextual entailment model and submitted its output for the evaluation. Our best performingmodel achieved an F1 score of 0.695.
Anthology ID:
2023.semeval-1.179
Volume:
Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Atul Kr. Ojha, A. Seza Doğruöz, Giovanni Da San Martino, Harish Tayyar Madabushi, Ritesh Kumar, Elisa Sartori
Venue:
SemEval
SIG:
SIGLEX
Publisher:
Association for Computational Linguistics
Note:
Pages:
1287–1292
Language:
URL:
https://aclanthology.org/2023.semeval-1.179
DOI:
10.18653/v1/2023.semeval-1.179
Bibkey:
Cite (ACL):
Robert Bevan, Oisín Turbitt, and Mouhamad Aboshokor. 2023. MDC at SemEval-2023 Task 7: Fine-tuning Transformers for Textual Entailment Prediction and Evidence Retrieval in Clinical Trials. In Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023), pages 1287–1292, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
MDC at SemEval-2023 Task 7: Fine-tuning Transformers for Textual Entailment Prediction and Evidence Retrieval in Clinical Trials (Bevan et al., SemEval 2023)
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PDF:
https://aclanthology.org/2023.semeval-1.179.pdf