arXiv Computation and Language By Songtao Li, Yijia Zhang, Shidi Zhang, Jianyuan Yuan, Fengyu Zhang, Hongfei Lin

A Guideline-Augmented Multi-Agent Framework for Schema-as-Code Biomedical Named Entity Recognition

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The paper introduces GAMA, a guideline-augmented multi-agent framework designed to improve biomedical named entity recognition (BioNER) using large language models (LLMs). GAMA constructs dataset-specific guideline memory by inducing and verifying annotation rules from training data, then employs a planning component to generate span-type hypotheses with rationales, a coding component to produce schema-constrained entity objects, and a verification module for structural compliance and dual-loop refinement. Experiments across five BioNER datasets demonstrate that GAMA consistently outperforms strong LLM-based baselines, with ablation studies confirming the effectiveness of each component.

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