bundle/config.json

{
  "name": "toothfairy4-prototype-v1",
  "seed": 2026,
  "folds": 5,
  "preprocess": {
    "spacing_mm": [
      0.5,
      0.5,
      0.5
    ],
    "shape_zyx": [
      112,
      192,
      192
    ],
    "clip_percentiles": [
      0.5,
      99.5
    ],
    "orientation": "LPS",
    "dtype": "float16"
  },
  "prototypes": {
    "max_prototypes": 1024,
    "min_support": 2,
    "embedder": "tfidf",
    "linkage_threshold": 0.62,
    "max_sentence_words": 60,
    "assign_threshold": 0.45,
    "tooth_aware": true
  },
  "encoder": {
    "backbone": "slice2d",
    "timm_model": "convnext_tiny",
    "width": 32,
    "dropout": 0.2,
    "epochs": 40,
    "batch_size": 4,
    "accumulate": 2,
    "learning_rate": 0.0002,
    "weight_decay": 0.02,
    "warmup_ratio": 0.1,
    "label_smoothing": 0.02,
    "focal_gamma_negative": 2.0,
    "focal_gamma_positive": 0.0,
    "ema_decay": 0.999,
    "amp": true,
    "num_workers": 8,
    "min_head_support": 0,
    "seed": 2026
  },
  "llm": {
    "base_model": "Qwen/Qwen2.5-1.5B-Instruct",
    "enabled": false,
    "lora_rank": 32,
    "lora_alpha": 64,
    "epochs": 3,
    "batch_size": 4,
    "learning_rate": 0.0001,
    "max_length": 1536,
    "max_new_tokens": 512
  },
  "decode": {
    "strategy": "prototype",
    "clinical_weight": 0.8,
    "captioning_weight": 0.2,
    "calibration_rounds": 6,
    "refine_top": 250,
    "min_sentences": 4,
    "max_sentences": 16,
    "mbr_candidates": 24
  }
}