This dataset contains 21 files. Except for the instruction document README, all files are uploaded in compressed packages (the larger files are split into multiple compressed packages). Users need to download the corresponding compressed packages and decompress them to obtain the original files. * 1_ FITS_ files_ download_ and_ preprocessing.zip, 2_ BGANet_ StarGRUNet.zip, 3_ Model uncertainty.zip, 4_ Comparison of StarGRUNet with GALAH DR3.zip and 5_ Observation Uncertainty.zip are the code files. * BR_ Flux_ Preprocessing_ lamost_ apogee_ between_ 5_ 50.zip.001 to BR_ Flux_ Preprocessing_ lamost_ apogee_ between_ 5_ 50.zip.003 are zips of the reference spectral data (5=50). * X_ test_ above_ 50. zip and X_ test_ between_ 5_ 50.zip are zips of test data set. * StarGRUNet_ Catalog.zip-001 and StarGRUNet_ Catalog.zip.002 are zips the StarGRUNet catalog. dr8_ v1.0_ LRS_ Mec2.zip is the repeated observation catalog. * data.zip contains the trained models, test set labels, test set prediction results, and the APOGEE DR17- LAMOST DR8 cross-matching catalog match.csv. * dr8_ v1.0_ LRS_ Mec2.zip is the repeated observation catalog. * pdf. zip contains all the pictures in the paper.