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This research addresses the critical issue of hallucinations in Large Language Models by introducing an evidence-driven framework that anchors discharge summaries to explicit source spans via semantic graphs. By treating provenance as a first-class constraint, the approach ensures clinical reliability while reducing documentation burdens for healthcare providers. The release of trained models and source code further facilitates reproducibility in high-stakes medical AI applications.
Toward Complete Hospital Discharge Summarization with Abstract Meaning Representation
arXiv:2609.13581v1 Announce Type: new Abstract: Discharge summaries are lengthy medical documents that summarize a hospital in-patient visit. Automatically generating them can reduce documentation burden and return clinician time to patient care. Whereas Large Language Model (LLMs) could be used for this task, their Achilles heel is hallucinations, which can have drastic consequences for clinical documentation. We present an evidence-driven alignment framework for discharge summarization at the clinical encounter level, that treats provenance as a first-class constraint, using semantic graphs and deep learning models. Each summary sentence is selected and organized via cross-document semantic alignment and is accompanied by explicit evidence links to its source spans. We show our results on two corpora: a publicly available corpus (MIMIC-III) and clinical notes written by physicians at the University of Illinois Hospital (UIC Health). Additionally, we make source code and trained models available.
Abstract:Discharge summaries are lengthy medical documents that summarize a hospital in-patient visit. Automatically generating them can reduce documentation burden and return clinician time to patient care. Whereas Large Language Model (LLMs) could be used for this task, their Achilles heel is hallucinations, which can have drastic consequences for clinical documentation. We present an evidence-driven alignment framework for discharge summarization at the clinical encounter level, that treats provenance as a first-class constraint, using semantic graphs and deep learning models. Each summary sentence is selected and organized via cross-document semantic alignment and is accompanied by explicit evidence links to its source spans. We show our results on two corpora: a publicly available corpus (MIMIC-III) and clinical notes written by physicians at the University of Illinois Hospital (UIC Health). Additionally, we make source code and trained models available.
Published in the 2026 IEEE 14th International Conference on Healthcare Informatics (ICHI). 10 pages, 6 figures
Computation and Language (cs.CL)
arXiv:2609.13581 [cs.CL]
(or arXiv:2609.13581v1 [cs.CL] for this version)
https://doi.org/10.48550/arXiv.2609.13581 Focus to learn more arXiv-issued DOI via DataCite (pending registration)
2026 IEEE 14th International Conference on Healthcare Informatics (ICHI), pp. 93-102, 2026
https://doi.org/10.1109/ICHI69079.2026.00023 Focus to learn more DOI(s) linking to related resources
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