{
  "model_type": "CRF",
  "task": "token-classification",
  "serialization": "cloudpickle",
  "framework": "sklearn-crfsuite",
  "language": "pt-BR",
  "dataset": "Brazilian Address NER",
  "version": "2.0.0",
  "architecture": {
    "algorithm": "lbfgs",
    "transition_features": "all_possible",
    "pipeline": [
      "AddressFeatureExtractor",
      "CRFTagger"
    ]
  },
  "hyperparameters": {
    "algorithm": "lbfgs",
    "c1": 0.1,
    "c2": 0.1,
    "max_iterations": 100,
    "all_possible_transitions": true
  },
  "labels": [
    "B-bairro",
    "B-cep",
    "B-complemento",
    "B-estado",
    "B-logradouro",
    "B-municipio",
    "B-numero",
    "B-tipo_logradouro",
    "I-bairro",
    "I-complemento",
    "I-logradouro",
    "I-municipio",
    "I-tipo_logradouro"
  ],
  "num_labels": 13,
  "id2label": {
    "0": "B-bairro",
    "1": "B-cep",
    "2": "B-complemento",
    "3": "B-estado",
    "4": "B-logradouro",
    "5": "B-municipio",
    "6": "B-numero",
    "7": "B-tipo_logradouro",
    "8": "I-bairro",
    "9": "I-complemento",
    "10": "I-logradouro",
    "11": "I-municipio",
    "12": "I-tipo_logradouro"
  },
  "label2id": {
    "B-bairro": 0,
    "B-cep": 1,
    "B-complemento": 2,
    "B-estado": 3,
    "B-logradouro": 4,
    "B-municipio": 5,
    "B-numero": 6,
    "B-tipo_logradouro": 7,
    "I-bairro": 8,
    "I-complemento": 9,
    "I-logradouro": 10,
    "I-municipio": 11,
    "I-tipo_logradouro": 12
  },
  "training": {
    "accuracy": 0.999468273661822,
    "trained_at": "2025-11-19T15:36:55.624329",
    "seed": 42
  },
  "feature_extraction": {
    "method": "morphological + contextual",
    "morphological_features": [
      "word_lowercase",
      "is_digit",
      "is_state_abbrev",
      "is_title",
      "is_upper",
      "has_dash",
      "is_cep_format",
      "is_cep_no_dash",
      "word_length",
      "common_address_words",
      "complement_words"
    ],
    "contextual_features": [
      "previous_word",
      "next_word",
      "BOS_marker",
      "EOS_marker"
    ],
    "note": "CRF uses same morphological features as HMM plus contextual features"
  }
}