Federated vs Centralized Learning for Brain Tumor Classification: A Systematic Review and Meta-analysis

A systematic review and meta-analysis compares federated learning and centralized learning for brain tumor classification and segmentation, pooling classification accuracy across identified studies.

• Medline, EMBASE, PubMed, Web of Science, and Scopus were searched up to March 4, 2026.
• Classification accuracy was pooled with random-effects meta-analysis; other metrics, including Dice similarity, were summarized descriptively.

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