selection_weights.json

{
  "version": "1.0.0",
  "method": "ensemble_calibrated_scoring",
  "heads": [
    "solver_rank",
    "runtime",
    "gap",
    "feasible_prob"
  ],
  "models": [
    "lightgbm_style",
    "catboost_style",
    "random_forest_style",
    "learning_to_rank"
  ],
  "normalization": {
    "n_variables": 1000,
    "n_constraints": 500
  },
  "solver_weights": {
    "cp_sat": {
      "bias": 0.62,
      "coefficients": [
        -0.02,
        0.04,
        0.12,
        0.22,
        0.18,
        0.08,
        0.1,
        0.15,
        0.2,
        0.12,
        0.05,
        0.08,
        0.06,
        0.1,
        0.08,
        0.05,
        0.04,
        0.06
      ],
      "runtime_base": 0.35,
      "gap_base": 2.5,
      "feasible_base": 0.92,
      "problem_affinity": {
        "job_shop": 0.18,
        "vrp": 0.12,
        "rcpsp": 0.14,
        "bin_packing": 0.1,
        "tsp": 0.08
      },
      "config_rules": {
        "scheduling": {
          "num_search_workers": 8,
          "search_branching": "portfolio"
        }
      }
    },
    "highs": {
      "bias": 0.58,
      "coefficients": [
        0.1,
        0.06,
        -0.05,
        0.08,
        -0.12,
        0.06,
        -0.04,
        0.05,
        0.02,
        0.04,
        0.03,
        0.02,
        0.05,
        0.04,
        0.06,
        0.02,
        0.01,
        0.03
      ],
      "runtime_base": 0.42,
      "gap_base": 1.8,
      "feasible_base": 0.9,
      "problem_affinity": {
        "assignment": 0.15,
        "facility_location": 0.12,
        "network_design": 0.1,
        "knapsack": 0.08
      },
      "config_rules": {
        "mip": {
          "threads": 4,
          "presolve": "on",
          "cut_strategy": "aggressive"
        }
      }
    },
    "cbc": {
      "bias": 0.52,
      "coefficients": [
        0.05,
        0.08,
        0.08,
        0.1,
        0.06,
        0.04,
        0.05,
        0.03,
        0.02,
        0.03,
        0.02,
        0.01,
        0.04,
        0.03,
        0.05,
        0.02,
        0.02,
        0.02
      ],
      "runtime_base": 0.55,
      "gap_base": 3.2,
      "feasible_base": 0.86,
      "problem_affinity": {
        "set_cover": 0.14,
        "bin_packing": 0.12,
        "knapsack": 0.08
      },
      "config_rules": {
        "default": {
          "cuts": "on",
          "heuristics": "on"
        }
      }
    },
    "scip": {
      "bias": 0.6,
      "coefficients": [
        0.08,
        0.1,
        0.04,
        0.1,
        0.02,
        0.05,
        0.06,
        0.04,
        0.03,
        0.04,
        0.03,
        0.03,
        0.05,
        0.04,
        0.04,
        0.03,
        0.02,
        0.03
      ],
      "runtime_base": 0.48,
      "gap_base": 2.0,
      "feasible_base": 0.91,
      "problem_affinity": {
        "facility_location": 0.14,
        "set_cover": 0.1,
        "network_design": 0.08
      },
      "config_rules": {
        "mip": {
          "presolving": true,
          "separating": true
        }
      }
    },
    "glpk": {
      "bias": 0.45,
      "coefficients": [
        0.02,
        0.04,
        0.02,
        0.04,
        -0.08,
        0.02,
        0.02,
        0.02,
        0.01,
        0.02,
        0.01,
        0.01,
        0.03,
        0.02,
        0.03,
        0.01,
        0.01,
        0.01
      ],
      "runtime_base": 0.62,
      "gap_base": 4.5,
      "feasible_base": 0.78,
      "problem_affinity": {
        "assignment": 0.1,
        "network_design": 0.06
      },
      "config_rules": {
        "lp": {
          "presolve": true,
          "mip_gap": 0.03
        }
      }
    },
    "gurobi": {
      "bias": 0.66,
      "coefficients": [
        0.12,
        0.08,
        0.02,
        0.08,
        -0.05,
        0.04,
        0.04,
        0.03,
        0.02,
        0.03,
        0.02,
        0.02,
        0.06,
        0.05,
        0.05,
        0.03,
        0.02,
        0.03
      ],
      "runtime_base": 0.3,
      "gap_base": 1.2,
      "feasible_base": 0.94,
      "problem_affinity": {
        "facility_location": 0.16,
        "vrp": 0.1,
        "assignment": 0.12,
        "tsp": 0.08
      },
      "config_rules": {
        "mip": {
          "MIPFocus": 1,
          "Presolve": 2,
          "Heuristics": 0.25
        }
      }
    },
    "minizinc": {
      "bias": 0.54,
      "coefficients": [
        -0.01,
        0.03,
        0.14,
        0.18,
        0.16,
        0.1,
        0.08,
        0.18,
        0.22,
        0.1,
        0.06,
        0.06,
        0.08,
        0.06,
        0.04,
        0.04,
        0.05,
        0.04
      ],
      "runtime_base": 0.5,
      "gap_base": 2.8,
      "feasible_base": 0.88,
      "problem_affinity": {
        "job_shop": 0.14,
        "rcpsp": 0.12,
        "bin_packing": 0.08
      },
      "config_rules": {
        "cp": {
          "solver": "chuffed",
          "neighborhood_size": 16
        }
      }
    },
    "alns": {
      "bias": 0.56,
      "coefficients": [
        0.06,
        0.02,
        0.04,
        0.06,
        0.08,
        0.12,
        0.06,
        0.1,
        0.08,
        0.14,
        0.08,
        0.1,
        0.12,
        0.14,
        0.1,
        0.08,
        0.06,
        0.08
      ],
      "runtime_base": 0.38,
      "gap_base": 3.5,
      "feasible_base": 0.89,
      "problem_affinity": {
        "vrp": 0.18,
        "tsp": 0.14,
        "job_shop": 0.12
      },
      "config_rules": {
        "meta": {
          "neighborhood_size": 32,
          "destroy_pct": 0.35,
          "initial_solution": "greedy"
        }
      }
    }
  }
}