Datasets:
| { | |
| "dataset_name": "smoking", | |
| "download_urls": { | |
| "GSE50660": "https://ftp.ncbi.nlm.nih.gov/geo/series/GSE50nnn/GSE50660/matrix/GSE50660_series_matrix.txt.gz", | |
| "HumanMethylation450_manifest": "https://webdata.illumina.com/downloads/productfiles/humanmethylation450/humanmethylation450_15017482_v1-2.csv" | |
| }, | |
| "download_timestamp": "2026-10-27T00:51:32.294007", | |
| "statistics": { | |
| "num_samples": 464, | |
| "num_features": 139125, | |
| "target_stats": { | |
| "class_mapping": { | |
| "never": 0, | |
| "ever": 1 | |
| }, | |
| "num_classes": 2, | |
| "class_names": [ | |
| "never", | |
| "ever" | |
| ], | |
| "samples_per_class": { | |
| "never": 179, | |
| "ever": 285 | |
| }, | |
| "original_geo_class_counts": { | |
| "never": 179, | |
| "former": 263, | |
| "current": 22 | |
| }, | |
| "n_promoter_probes": 139125, | |
| "n_mapped_genes": 20763 | |
| } | |
| }, | |
| "preprocessing_notes": "GSE50660 Illumina 450k beta values restricted to HumanMethylation450 v1.2 probes annotated as TSS1500 or TSS200. Hub matrices are uncorrected promoter probes. ogbench picks, for each gene, the candidate probe with the minimum mean beta on training never-smokers (label 0), imputes remaining NaNs with training column means, and median-centers each gene on the training split only. The original 3-class GEO smoking status (0=never, 1=former, 2=current) is collapsed into a binary target: 0=never, 1=ever (former or current)." | |
| } |