SynCABEL: Synthetic Contextualized Augmentation for Biomedical Entity Linking

Fuente: arXiv
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Autores principales: Remaki, Adam, Gérardin, Christel, Farré-Maduell, Eulàlia, Krallinger, Martin, Tannier, Xavier
Formato: Preprint
Publicado: 2026
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author Remaki, Adam
Gérardin, Christel
Farré-Maduell, Eulàlia
Krallinger, Martin
Tannier, Xavier
author_facet Remaki, Adam
Gérardin, Christel
Farré-Maduell, Eulàlia
Krallinger, Martin
Tannier, Xavier
contents We present SynCABEL (Synthetic Contextualized Augmentation for Biomedical Entity Linking), a framework that addresses a central bottleneck in supervised biomedical entity linking (BEL): the scarcity of expert-annotated training data. SynCABEL leverages large language models to generate context-rich synthetic training examples for all candidate concepts in a target knowledge base, providing broad supervision without manual annotation. We demonstrate that SynCABEL, when combined with decoder-only models and guided inference, establishes new state-of-the-art results across three widely used multilingual benchmarks: MedMentions for English, QUAERO for French, and SPACCC for Spanish. Evaluating data efficiency, we show that SynCABEL reaches the performance of full human supervision using up to 60% less annotated data, substantially reducing reliance on labor-intensive and costly expert labeling. Finally, acknowledging that standard evaluation based on exact code matching often underestimates clinically valid predictions due to ontology redundancy, we introduce an LLM-as-a-judge protocol. This analysis reveals that SynCABEL significantly improves the rate of clinically valid predictions. Our synthetic datasets, models, and code are released to support reproducibility and future research.
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id arxiv_https___arxiv_org_abs_2601_19667
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SynCABEL: Synthetic Contextualized Augmentation for Biomedical Entity Linking
Remaki, Adam
Gérardin, Christel
Farré-Maduell, Eulàlia
Krallinger, Martin
Tannier, Xavier
Computation and Language
Artificial Intelligence
Information Retrieval
Machine Learning
We present SynCABEL (Synthetic Contextualized Augmentation for Biomedical Entity Linking), a framework that addresses a central bottleneck in supervised biomedical entity linking (BEL): the scarcity of expert-annotated training data. SynCABEL leverages large language models to generate context-rich synthetic training examples for all candidate concepts in a target knowledge base, providing broad supervision without manual annotation. We demonstrate that SynCABEL, when combined with decoder-only models and guided inference, establishes new state-of-the-art results across three widely used multilingual benchmarks: MedMentions for English, QUAERO for French, and SPACCC for Spanish. Evaluating data efficiency, we show that SynCABEL reaches the performance of full human supervision using up to 60% less annotated data, substantially reducing reliance on labor-intensive and costly expert labeling. Finally, acknowledging that standard evaluation based on exact code matching often underestimates clinically valid predictions due to ontology redundancy, we introduce an LLM-as-a-judge protocol. This analysis reveals that SynCABEL significantly improves the rate of clinically valid predictions. Our synthetic datasets, models, and code are released to support reproducibility and future research.
title SynCABEL: Synthetic Contextualized Augmentation for Biomedical Entity Linking
topic Computation and Language
Artificial Intelligence
Information Retrieval
Machine Learning
url https://arxiv.org/abs/2601.19667