{
  "architecture": "BiLSTM-CRF",
  "embedding": {
    "word_dim": 300,
    "word_source": "FastText (EN + RU, 500K vocab each)",
    "char_cnn_dim": 50,
    "char_cnn_kernel": 3,
    "language_dim": 16,
    "total_input_dim": 366
  },
  "encoder": {
    "type": "BiLSTM",
    "layers": 2,
    "hidden_per_direction": 256
  },
  "crf": {
    "num_tags": 9,
    "scheme": "BIO",
    "labels": ["O", "B-PER", "I-PER", "B-ORG", "I-ORG", "B-LOC", "I-LOC", "B-MISC", "I-MISC"]
  },
  "total_parameters": "~3.5M",
  "checkpoint_stage": "domain fine-tune, stage 2 (mixed EN+RU+domain, unfrozen)",
  "training_epoch": 12,
  "val_f1_at_checkpoint": 0.8472
}