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{
  "case_id": "medium",
  "difficulty": "medium",
  "campaign": {
    "name": "Holiday Fashion Campaign",
    "duration_days": 14,
    "total_budget": 15000,
    "conversion_value": 10.0,
    "investigation_budget": 10,
    "industry_benchmarks": {
      "avg_ctr": 0.021,
      "avg_cvr": 0.028
    }
  },
  "publishers": {
    "pub_001": {
      "name": "StyleMaven Magazine",
      "is_fraudulent": false,
      "fraud_type": null,
      "base_traffic_rate": 12000,
      "true_ctr": 0.022,
      "true_cvr": 0.032,
      "cpm_rate": 2.5,
      "budget_allocation": 0.30,
      "suspicion_reactivity": 1.0,
      "fraud_schedule": {},
      "fake_ctr": 0.0,
      "fake_cvr": 0.0,
      "day_factors": [1.0, 1.01, 0.99, 1.02, 1.0, 0.97, 0.95, 1.03, 1.01, 0.99, 1.02, 1.0, 0.98, 1.01],
      "noise_factors": [1.0, 0.99, 1.01, 1.0, 0.98, 1.02, 1.0, 0.99, 1.01, 1.0, 0.98, 1.01, 1.0, 0.99]
    },
    "pub_002": {
      "name": "FashionForward Hub",
      "is_fraudulent": false,
      "fraud_type": null,
      "base_traffic_rate": 7000,
      "true_ctr": 0.019,
      "true_cvr": 0.027,
      "cpm_rate": 2.0,
      "budget_allocation": 0.20,
      "suspicion_reactivity": 1.0,
      "fraud_schedule": {},
      "fake_ctr": 0.0,
      "fake_cvr": 0.0,
      "day_factors": [1.0, 0.99, 1.01, 1.0, 1.02, 0.96, 0.94, 1.01, 1.0, 0.99, 1.01, 1.02, 0.98, 1.0],
      "noise_factors": [1.0, 1.01, 0.99, 1.0, 1.01, 0.99, 1.0, 1.01, 0.99, 1.0, 1.01, 0.99, 1.0, 1.01]
    },
    "pub_003": {
      "name": "LuxeAds Premium",
      "is_fraudulent": true,
      "fraud_type": "bot_traffic",
      "base_traffic_rate": 11000,
      "true_ctr": 0.020,
      "true_cvr": 0.026,
      "cpm_rate": 3.0,
      "budget_allocation": 0.25,
      "suspicion_reactivity": 0.5,
      "fraud_schedule": {
        "start_day": 3,
        "ramp_days": 2,
        "peak_intensity": 2.5
      },
      "fake_ctr": 0.06,
      "fake_cvr": 0.001,
      "day_factors": [1.0, 1.01, 1.0, 1.05, 1.10, 1.12, 1.10, 1.13, 1.12, 1.10, 1.12, 1.13, 1.11, 1.10],
      "noise_factors": [1.01, 1.0, 0.99, 1.01, 1.0, 0.99, 1.01, 1.0, 0.98, 1.02, 1.0, 0.99, 1.01, 1.0]
    },
    "pub_004": {
      "name": "ClickBoost Pro",
      "is_fraudulent": true,
      "fraud_type": "click_injection",
      "base_traffic_rate": 8000,
      "true_ctr": 0.018,
      "true_cvr": 0.024,
      "cpm_rate": 2.0,
      "budget_allocation": 0.25,
      "suspicion_reactivity": 0.5,
      "fraud_schedule": {
        "start_day": 3,
        "ramp_days": 3,
        "peak_intensity": 2.0
      },
      "fake_ctr": 0.04,
      "fake_cvr": 0.07,
      "day_factors": [1.0, 1.0, 1.0, 1.03, 1.06, 1.08, 1.10, 1.08, 1.10, 1.08, 1.10, 1.08, 1.10, 1.08],
      "noise_factors": [1.0, 1.01, 0.99, 1.0, 0.98, 1.02, 1.0, 0.99, 1.01, 1.0, 0.99, 1.01, 1.0, 0.99]
    }
  },
  "ground_truth": {
    "fraudulent_publishers": ["pub_003", "pub_004"],
    "fraud_types": {
      "pub_003": "bot_traffic",
      "pub_004": "click_injection"
    }
  }
}