Federated Learning for Surgical Vision in Appendicitis Classification: Results of the FedSurg EndoVis 2024 Challenge

Fuente: arXiv
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Autores principales: Kirchner, Max, Hoffmann, Hanna, Jenke, Alexander C., Saldanha, Oliver L., Pfeiffer, Kevin, Kanjo, Weam, Alekseenko, Julia, de Boer, Claas, Kolamuri, Santhi Raj, Mazza, Lorenzo, Padoy, Nicolas, Bano, Sophia, Reinke, Annika, Maier-Hein, Lena, Stoyanov, Danail, Kather, Jakob N., Kolbinger, Fiona R., Bodenstedt, Sebastian, Speidel, Stefanie
Formato: Preprint
Publicado: 2025
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author Kirchner, Max
Hoffmann, Hanna
Jenke, Alexander C.
Saldanha, Oliver L.
Pfeiffer, Kevin
Kanjo, Weam
Alekseenko, Julia
de Boer, Claas
Kolamuri, Santhi Raj
Mazza, Lorenzo
Padoy, Nicolas
Bano, Sophia
Reinke, Annika
Maier-Hein, Lena
Stoyanov, Danail
Kather, Jakob N.
Kolbinger, Fiona R.
Bodenstedt, Sebastian
Speidel, Stefanie
author_facet Kirchner, Max
Hoffmann, Hanna
Jenke, Alexander C.
Saldanha, Oliver L.
Pfeiffer, Kevin
Kanjo, Weam
Alekseenko, Julia
de Boer, Claas
Kolamuri, Santhi Raj
Mazza, Lorenzo
Padoy, Nicolas
Bano, Sophia
Reinke, Annika
Maier-Hein, Lena
Stoyanov, Danail
Kather, Jakob N.
Kolbinger, Fiona R.
Bodenstedt, Sebastian
Speidel, Stefanie
contents Developing generalizable surgical AI requires multi-institutional data, yet patient privacy constraints preclude direct data sharing, making Federated Learning (FL) a natural candidate solution. The application of FL to complex, spatiotemporal surgical video data remains largely unbenchmarked. We present the FedSurg Challenge, the first international benchmarking initiative dedicated to FL in surgical vision, evaluated as a proof-of-concept on a multi-center laparoscopic appendectomy dataset (preliminary subset of Appendix300). Three submissions were evaluated on generalization to an unseen center and center-specific adaptation. Centralized and Swarm Learning baselines isolate the contributions of task difficulty and decentralization to observed performance. Even with all data pooled centrally, the task achieved only 26.31\% F1-score on the unseen center, while decentralized training introduced an additional, separable performance penalty. Temporal modeling emerges as the dominant architectural factor: video-level spatiotemporal models consistently outperformed frame-level approaches regardless of aggregation strategy. Naive local fine-tuning leads to classifier collapse on imbalanced local data; structured personalized FL with parameter-efficient fine-tuning represents a more principled path toward center-specific adaptation. By characterizing current FL limitations through rigorous statistical analysis, this work establishes a methodological reference point for robust, privacy-preserving AI systems in surgical video analysis.
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id arxiv_https___arxiv_org_abs_2510_04772
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Federated Learning for Surgical Vision in Appendicitis Classification: Results of the FedSurg EndoVis 2024 Challenge
Kirchner, Max
Hoffmann, Hanna
Jenke, Alexander C.
Saldanha, Oliver L.
Pfeiffer, Kevin
Kanjo, Weam
Alekseenko, Julia
de Boer, Claas
Kolamuri, Santhi Raj
Mazza, Lorenzo
Padoy, Nicolas
Bano, Sophia
Reinke, Annika
Maier-Hein, Lena
Stoyanov, Danail
Kather, Jakob N.
Kolbinger, Fiona R.
Bodenstedt, Sebastian
Speidel, Stefanie
Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
Developing generalizable surgical AI requires multi-institutional data, yet patient privacy constraints preclude direct data sharing, making Federated Learning (FL) a natural candidate solution. The application of FL to complex, spatiotemporal surgical video data remains largely unbenchmarked. We present the FedSurg Challenge, the first international benchmarking initiative dedicated to FL in surgical vision, evaluated as a proof-of-concept on a multi-center laparoscopic appendectomy dataset (preliminary subset of Appendix300). Three submissions were evaluated on generalization to an unseen center and center-specific adaptation. Centralized and Swarm Learning baselines isolate the contributions of task difficulty and decentralization to observed performance. Even with all data pooled centrally, the task achieved only 26.31\% F1-score on the unseen center, while decentralized training introduced an additional, separable performance penalty. Temporal modeling emerges as the dominant architectural factor: video-level spatiotemporal models consistently outperformed frame-level approaches regardless of aggregation strategy. Naive local fine-tuning leads to classifier collapse on imbalanced local data; structured personalized FL with parameter-efficient fine-tuning represents a more principled path toward center-specific adaptation. By characterizing current FL limitations through rigorous statistical analysis, this work establishes a methodological reference point for robust, privacy-preserving AI systems in surgical video analysis.
title Federated Learning for Surgical Vision in Appendicitis Classification: Results of the FedSurg EndoVis 2024 Challenge
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2510.04772