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Every article on Frontiers is peer reviewed, permanently archived and free to read.

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Original Research
Published 7 October 2026
Governance-aware autonomous retail coordination in artificial intelligence cities using multi-agent reinforcement learning, blockchain accountability, and federated learning
Toqeer Ali Syed · Ali Akarma · Shahid Kamal · Salman Jan · Ahmad B. Alkhodre · Arshad Jamal
Frontiers in Artificial Intelligence
doi 10.3389/frai.2026.1942376
Original Research
Published 25 August 2026
Severity-aware hierarchical federated learning for privacy-preserving indoor emergency recognition in BLE-based medical IoT environments
Chembon Rajeendran Karthik · Shyam Venkatraman · Hemalatha K
Frontiers in Medical Technology
doi 10.3389/fmedt.2026.1900013