During the second reporting period, ODELIA moved from prototyping to operational deployment of its decentralized Swarm Learning (SL) infrastructure. The consortium strengthened the minimum viable product through expanded technical documentation, updated best‑practice guidelines, and support for partner‑site setup.
A major milestone was the creation and roll‑out of MediSwarm, the open‑source NVFLARE‑based SL platform. All eight partner sites reached operational readiness, enabling the first multi‑centre open‑source SL training run in December 2025.
In the breast‑cancer MRI use case, partners completed data curation, trained local baseline models, and performed joint SL experiments. A public MRI dataset was released, and the ODELIA public challenge successfully attracted high‑performing external solutions.
Front‑end development advanced with a fully functional, open‑source viewer supporting structured data collection, visualization of AI results, explainability heatmaps, and expert‑feedback workflows.
Regulatory and quality‑assurance work progressed through IEC‑62304‑aligned documentation, improved software‑development processes, and new tools for data‑quality and anomaly detection. Dissemination intensified through publications, conference presentations, and internal and external Summer Schools.
Overall, the period marked a decisive shift toward operational SL in real‑world clinical environments, strengthening the technical and regulatory foundation for the final phase of the project.