Adicionar Modelo IA

thresholds.json

@@ -0,0 +1,116 @@
+{
+  "generated_at": "2025-11-20T02:38:35.138608+00:00",
+  "dataset_size": 4483956,
+  "class_distribution_original": {
+    "0": 4439775,
+    "1": 44181
+  },
+  "train_non_frauds_max_used": 400000,
+  "train_class_distribution_before_balance": {
+    "0": 2663864,
+    "1": 26509
+  },
+  "train_balanced_class_distribution": {
+    "0": 400000,
+    "1": 26509
+  },
+  "auc_roc": 0.8857282388447254,
+  "threshold": 0.44144144144144143,
+  "selection": {
+    "mode": "best_f1",
+    "best_f1_threshold": 0.44144144144144143,
+    "best_f1_value": 0.6439178036627154
+  },
+  "metrics_at_threshold": {
+    "accuracy": 0.9947055727526561,
+    "precision": 0.9544241885282347,
+    "recall": 0.48585332729741965,
+    "f1": 0.6439178041097945
+  },
+  "feature_importances_xgb_gain_top20": [
+    {
+      "feature": "qtas_fraudes_cartao",
+      "gain": 0.32888033986091614
+    },
+    {
+      "feature": "fraude_ratio_terminal",
+      "gain": 0.18363086879253387
+    },
+    {
+      "feature": "fraude_ratio_cartao",
+      "gain": 0.10315709561109543
+    },
+    {
+      "feature": "qtas_fraudes_terminal",
+      "gain": 0.09818089008331299
+    },
+    {
+      "feature": "entropia_geografica_cartao",
+      "gain": 0.0293036587536335
+    },
+    {
+      "feature": "longitude",
+      "gain": 0.023642411455512047
+    },
+    {
+      "feature": "latitude",
+      "gain": 0.02150840125977993
+    },
+    {
+      "feature": "qtas_transacoes_terminal_dia",
+      "gain": 0.02116469480097294
+    },
+    {
+      "feature": "desvio_padrao_valor_cartao",
+      "gain": 0.02007487416267395
+    },
+    {
+      "feature": "valor_medio_cartao",
+      "gain": 0.019987693056464195
+    },
+    {
+      "feature": "desvio_padrao_valor_terminal",
+      "gain": 0.019812680780887604
+    },
+    {
+      "feature": "tx_amount",
+      "gain": 0.019712846726179123
+    },
+    {
+      "feature": "velocidade_ultima_transacao",
+      "gain": 0.01963718980550766
+    },
+    {
+      "feature": "dias_desde_primeira_transacao_do_cartao",
+      "gain": 0.01920768804848194
+    },
+    {
+      "feature": "valor_medio_terminal",
+      "gain": 0.01920476369559765
+    },
+    {
+      "feature": "dias_desde_inicio_terminal",
+      "gain": 0.018486132845282555
+    },
+    {
+      "feature": "tx_hour",
+      "gain": 0.01793355494737625
+    },
+    {
+      "feature": "qtas_transacoes_cartao_dia",
+      "gain": 0.01647430658340454
+    }
+  ],
+  "base_model_meta_weights": {
+    "rf": 0.9984035731210663,
+    "xgb": 0.001111504578919198,
+    "et": 0.000484922300014473
+  },
+  "base_model_auc_test": {
+    "rf": 0.881155250373531,
+    "xgb": 0.8867136661938362,
+    "et": 0.8830867877996174
+  },
+  "model_path": "./models\\stacking_fraude_model_4.pkl",
+  "calibrated_saved": true
+}