ResearchBenchmarksForward problem on Helmholtz-2DFollow0.0136Relative L2 ErrorPILIR-0.0510560.3853720.82181.258228May 1, 2026Evaluation ResultsMethodMethodLinksRelative L2 ErrorPILIR2026.050.0136Wavelet2026.050.496PIG2026.051PINN2026.051.62PIXEL2026.051.63