{
  "READY": true,
  "name": "ecoli",
  "task": "classification",
  "num_classes": 5,
  "cat_idx": [],
  "num_samples": 327,
  "num_features": 5,
  "imbalance_ratio": 7.15,
  "description": "Five-class protein subcellular localization (327 proteins, five supplied sequence-derived features: mcg, gvh, lip, alm1, alm2). Retain PMLB classes cp, im, imU, om, pp; exclude the original imL, imS and omL classes. Omit the supervised aac discriminant because its training population is unverified, and remove constant chg. Protein IDs are never features. Use five stratified outer folds and three inner folds; fit imputation, encoding and scaling within training partitions.",
  "source": "PMLB (ecoli); verified against original UCI release",
  "license": "CC BY 4.0",
  "url": "https://archive.ics.uci.edu/dataset/39/ecoli",
  "split_strategy": "cv",
  "label": "proteomics",
  "target_mapping": {
    "0": "cp",
    "1": "im",
    "2": "imU",
    "3": "om",
    "4": "pp"
  },
  "source_url": "https://media.githubusercontent.com/media/EpistasisLab/pmlb/7c1f4bdc00136dc2e55c87fa6b8ba6e8af6d1a68/datasets/ecoli/ecoli.tsv.gz",
  "sample_metadata_file": "sample_metadata.csv",
  "source_manifest_sha256": "d1a68bd3d64f3bca1431c8be338c3e6331b30932a9cc4af99c30a89015dc4878",
  "curation_protocol": "source_verified_pmlb_v1",
  "source_num_samples": 327,
  "source_num_features": 7,
  "feature_representation": "Keep PMLB five-class cohort (cp, im, imU, om, pp); exclude imL=2, imS=2, omL=5 source records. Drop aac conservatively because supervised discriminant training-population identity is unverified (not proven leakage); drop constant chg."
}