{
  "arch": "CorefHead (Lee-2017 antecedent scorer on the SHARED frozen mDeBERTa backbone)",
  "precision": "fp16",
  "hidden": 768,
  "proj": 256,
  "mention_rep": "[start_tok ; end_tok ; mean(span)] -> proj(768*3->256)",
  "pair_score": "MLP([m_i ; m_j ; m_i*m_j]) + learned dummy antecedent",
  "decode": "argmax antecedent per mention -> union-find clusters (dummy=no antecedent)",
  "compose": "rewrite-first at inference (resolve clusters, swap anaphora to cluster head, offset back-map keeps provenance)",
  "trained_on": "research/data/coref (4400 train / 1100 val, EN/JA/KO/TH/ZH)",
  "val_link_accuracy": "97.8%",
  "weights": "coref_head_fp16.pt (mention encoder + pair MLP + dummy)",
  "backbone": "shares model_fp16.safetensors encoder (frozen)"
}