Supplementary data for: Quality assessment of spectroscopic data reduction pipelines using artificial intelligence, scrutinizing the Data Release 2 from the DESI survey

File Layout Figure File(s) Contents Fig. 1 fig1/fig1_main.csv Fiber focal-plane coordinates and science-fiber flag. Fig. 2 fig2/fig2_main.csv UMAP coordinates colored by target category. Fig. 3 fig3/fig3_main.csv UMAP coordinates with Friends-of-Friends group labels. Fig. 4 fig4/fig4_main.csv UMAP coordinates with outlier mask. Fig. 5 fig5/fig5_panel_dark.csvfig5/fig5_panel_bright.csvfig5/fig5_panel_backup.csv Tile-level outlier fractions by observing program. Fig. 6 fig6/fig6_panel_dark.csvfig6/fig6_panel_bright.csvfig6/fig6_panel_backup.csv Fiber-level outlier fractions by observing program. Fig. 7 fig7/fig7_main.csv Focal-plane coordinates with per-fiber outlier fraction. Fig. 8 fig8/fig8_panel_dark.csvfig8/fig8_panel_bright.csvfig8/fig8_panel_backup.csv Petal-level outlier fractions by observing program. Fig. 9 fig9/fig9_panel_dark.csvfig9/fig9_panel_bright.csvfig9/fig9_panel_backup.csv Outlier fraction versus fiber ID by observing program. Fig. 10 fig10/fig10_main.csv ZWARN flag counts. Fig. 11 fig11/fig11_main.csv Total outlier fraction by observing program. Fig. 12 fig12/fig12_main.csv Per-tile processing times. Fig. 13 fig13/fig13_main.csv Number of outliers versus number of spectra per tile.