Fresh Enough to Decide: Age of Intelligence for Cost-Aware Model Synchronization in Dynamic IoT Systems

Age of Intelligence defines model-version-relative, client-specific, and action utility distortion for resource-constrained IoT devices. Kullback-Leibler-aware AoInt Synchronization and Parameter-aware AoInt Synchronization are developed for synchronization. Calibrated Param-AoIntSync reduces joint synchronization cost by 6.15% relative to an Instant-Parameters policy.