ResearchBenchmarksPM1 Concentration Forecasting on AirU air pollution datasetFollow0.886R2 (3H)ET0.619760.688880.7580.82712Jun 23, 2026Evaluation ResultsMethodMethodLinksR2 (3H)R2 (6H)R2 (9H)R2 (12H)ET2026.060.8860.8220.6910.798GB2026.060.8860.830.6940.795RF2026.060.8780.8210.6760.8GRU2026.060.8020.660.5610.62LSTM2026.060.8010.6090.6870.634DT2026.060.7870.7370.4660.602Prophet2026.060.7870.7320.6780.634kNN2026.060.630.5650.3610.532