An improved periodic activation for PINNs reconstructing convective flows

arXiv:2609.21798 · physics.flu-dyn, cs.LG · Submitted 2026-09-18 · Read on arXiv

physics.flu-dyn, cs.LG

Submitted: 2026-09-18

Updated: 2026-09-18

Terminology

• Activation Function — 9× in this paper · explained in 1 episode
• Inverse Problem — 2× in this paper · explained in 2 episodes
• Adam — 1× in this paper · explained in 2 episodes
• Adaptation — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 3 episodes
• Loss Function — 1× in this paper · explained in 2 episodes
• Physics-Informed Neural Networks (PINNs) — 1× in this paper · explained in 6 episodes

Sources

• Spectral bias in physics-informed and operator learning: Analysis and mitigation guidelines
• Fourier Features Let Networks Learn High Frequency Functions in Low Dimensional Domains

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