{
  "release_version": "3.1.0-multisource-balanced",
  "random_seed": 42,
  "test_size": 0.2,
  "splitter": "GroupShuffleSplit",
  "group_key_priority": [
    "derived_from",
    "normalized_hash",
    "id"
  ],
  "classifier": {
    "type": "sklearn.linear_model.LogisticRegression",
    "solver": "lbfgs",
    "C": 4.0,
    "max_iter": 3000,
    "class_weight": "balanced"
  },
  "preparation": {
    "confidence_threshold": 0.65,
    "target_per_task": 800,
    "max_per_task": 2000,
    "accepted_label_methods": [
      "source_fixed",
      "human_override"
    ],
    "augmentation": "deterministic lexical variants"
  },
  "features": {
    "input_size": 1544,
    "word_bigram_bins": 1024,
    "character_trigram_bins": 512,
    "numeric_features": 8,
    "hash": "FNV-1a 32-bit over JavaScript UTF-16 code units"
  },
  "labels": {
    "task": [
      "general_chat",
      "writing",
      "translation",
      "summarization",
      "research",
      "coding",
      "mathematics",
      "document_analysis",
      "high_stakes"
    ],
    "complexity": [
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      "medium",
      "high"
    ]
  },
  "reference_environment": {
    "python": "3.13.5",
    "numpy": "2.3.5",
    "scikit-learn": "1.8.0",
    "regex": "2026.5.9",
    "onnx_opset": 13,
    "onnx_ir_version": 8
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}