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gp_mining:
  run_id: qlib_gp_run_0
  seed: 42
  device: auto

  population_size: 300
  generations_per_run: 30
  max_init_depth: 4
  max_tree_depth: 8
  max_tree_nodes: 60
  min_tree_nodes: 3

  elite_size: 20
  tournament_k: 5
  crossover_rate: 0.50
  mutation_rate: 0.35
  random_immigrant_rate: 0.15

  forward_steps: 5
  min_stocks: 50
  top_k_export: 30

  depth_penalty: 0.006
  node_penalty: 0.0012
  duplicate_penalty: 0.05

  elite_corr_fatal: 0.95
  elite_corr_hard: 0.85
  elite_corr_mid: 0.75
  elite_corr_soft: 0.65
  max_elite_cache: 60
  export_corr_threshold: 0.80

  windows: [3, 5, 8, 10, 15, 20, 30, 40, 60, 80, 120]