Semantic Reasoning in Medicine: The Role of Knowledge Graphs Across Five Key Domains
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Computer Science > Machine Learning
arXiv:2606.15155 (cs)
[Submitted on 13 Jun 2026]
Title:Semantic Reasoning in Medicine: The Role of Knowledge Graphs Across Five Key Domains
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Abstract:Knowledge graphs (KGs) have emerged as a promising solution for integrating and reasoning over complex biomedical and clinical data in healthcare. By representing structured relationships among entities such as diseases, drugs, symptoms, and patient records, KGs provide a semantic backbone for decision-making, prediction, recommendation, and personalized care. Recent advances have demonstrated their utility across diverse medical applications--including clinical decision support systems, disease and treatment outcome prediction, health recommender systems, precision medicine, and medical question answering--where KGs often enhance interpretability, semantic coherence, and patient-specific reasoning. In parallel, a growing body of work focuses on medical KG generation itself, proposing frameworks that construct graphs from EHRs, clinical narratives, biomedical literature, and web resources using ontologies, semantic web technologies, deep-learning-based information extraction, and hybrid neuro-symbolic pipelines. Despite this progress, significant challenges remain, including limited and fragmented knowledge coverage, difficulties in aligning heterogeneous data sources, the fragility of current reasoning and representation-learning methods on dense multi-relational graphs, and unresolved issues related to privacy, bias, and accountability. This survey reviews and categorizes current research on KGs in medicine along both application-oriented and methodology-oriented dimensions, discusses their benefits and technical foundations, and outlines key limitations and open research directions. By analyzing trends, architectures, and evaluation practices, this work aims to guide future developments in KG-driven medical AI systems and support their safe and effective integration into healthcare environments.
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2606.15155 [cs.LG] |
| (or arXiv:2606.15155v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2606.15155
arXiv-issued DOI via DataCite (pending registration)
|
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