{
  "READY": true,
  "name": "PT-Mush21",
  "task": "classification",
  "num_classes": 6,
  "cat_idx": [],
  "num_samples": 593,
  "num_features": 383,
  "imbalance_ratio": 1.6761,
  "description": "PTR-ToF-MS fungal species classification: 593 measurements and 383 peaks from 25 biological strains of six species, measured in pure culture and co-culture with Pseudomonas helmanticensis (Probst et al., Scientific Reports 2023). Labels 0-5 correspond to Entomortierella galaxiae, Linnemannia exigua, L. hyalina, L. sclerotiella, L. gamsii and L. solitaria. Five strain-grouped outer folds test every measurement once. The three requested inner folds reduce to two in each outer fold because of limited class support at the strain level. The final-fit validation holdout is also strain-disjoint. Sample, strain and condition identifiers are metadata, not features. Source PTR-ToF-MS peak values are area-normalized to a row sum of one and are retained without an additional logarithmic transformation. Feature scaling is fitted within each training partition.",
  "source": "On the use of TabPFN on mass spectrometry analysis of volatile organic compounds. Scientific Reports (2025). GitHub: https://github.com/CIFASIS/TabPFN-VOCS",
  "label": "Metabolomics",
  "sub_labels": [
    "mass spectrometry",
    "volatile organic compounds"
  ],
  "force_scale": true,
  "split_strategy": "cv",
  "split_group": "biological_strain",
  "outer_split_protocol": "mush21_strain_outer_v1",
  "feature_representation": "source_area_normalized",
  "target_mapping": {
    "0": "PA",
    "1": "EX",
    "2": "HY",
    "3": "SC",
    "4": "GA",
    "5": "SO"
  },
  "num_strains": 25,
  "num_source_groups": 50,
  "publication_doi": "10.1038/s41598-023-29134-6",
  "source_url": "https://doi.org/10.1038/s41598-023-29134-6",
  "class_names": [
    "Entomortierella galaxiae",
    "Linnemannia exigua",
    "Linnemannia hyalina",
    "Linnemannia sclerotiella",
    "Linnemannia gamsii",
    "Linnemannia solitaria"
  ],
  "strain_mapping_sha256": "197eb325c54e016553191ae1447c19586b23d104abc8bd11dd5bea012f1f0088",
  "sample_metadata_file": "sample_metadata.csv"
}