The best free AI courses and certificates for upskilling in 2026 - and I've tried them all

I've worked with AI for decades and have a master's degree in education. Here are the top free AI courses online that I recommend - and why.
IEEE

Machine Anomalous Sound Detection Using Spectral-Temporal Modulation Representations Derived From Machine-Specific Filterbanks

Abstract: Early detection of factory machinery malfunctions is crucial in industrial applications. In machine anomalous sound detection (ASD), different machines exhibit unique vibration-frequency ...
IEEE

Optimizing End-to-End Latency of Sporadic Cause-Effect Chains Using Priority Inheritance

Abstract: Analysis and optimization of end-to-end latency in cause-effect chains is an important problem in real-time systems. Under task-level fixed-priority scheduling, the end-to-end latency ...