{
  "method": "dissertation_grid_search",
  "reference": "Blaskowski 2024, Section 1.2.3",
  "optimal_rank": 35,
  "optimal_lambda": 5.0,
  "rank_range_tested": [
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    10,
    15,
    20,
    25,
    30,
    35
  ],
  "lambda_values_tested": [
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    0.1,
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    1.0,
    2.0,
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  ],
  "cv_method": "leave_one_group_out",
  "n_cv_folds": 3,
  "cv_groups": [
    "apul",
    "peve",
    "ptua"
  ],
  "total_combinations": 56,
  "runtime_minutes": 3052.481789604823,
  "timestamp": "2025-11-26T13:56:18.516537"
}