ResearchBenchmarksInverse-problem estimation on Burgers equation No noiseInverse-problem estimation on Burgers equation No noiseFollow2.6Relative Viscosity ErrorPINN2.46243.39124.325.2488Jun 17, 2026Evaluation resultsMethodMethodLinksRelative Viscosity ErrorSolution Relative L2 ErrorPINN2026.062.66.27FPINN2026.062.764.79HQNN2026.0651.05PI-HPQNN2026.066.041.7