{
  "experiment": "A78 LOO observation budget router audit",
  "protocol": {
    "source_a65": "/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a65_per_region_signed_residual_audit/analysis.json",
    "source_a66": "/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a66_regional_budget_controller_replay/analysis.json",
    "source_a77": "/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a77_sampler_time_regional_guidance_replay/analysis.json",
    "selection_uses_gt_for_heldout": false,
    "training_uses_gt_on_train_cases": true,
    "retrospective_validation_uses_gt": true,
    "is_actual_sampler_modification": false,
    "joint_fscore_weight": 0.08,
    "goal": "Stress-test the A77 observation-state rule family under leave-one-case-out threshold fitting.",
    "limitation": "Only 3 active cases have A65 sampler proxy trajectories, so this is a falsification/stability check rather than a publishable generalization result."
  },
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        "selected_lambdas": {
          "gso_000_input4": 1.0,
          "gso_002_input4": 1.0,
          "gso_008_input4": 1.0
        }
      },
      "a78_loo_observation_budget_router": {
        "policy": "a78_loo_observation_budget_router",
        "case_count": 3,
        "mean_delta_chamfer_vs_carrier": -0.0006137885937647636,
        "mean_delta_fscore_vs_carrier": 0.0053395410335304845,
        "mean_joint_score": -0.0010409518764472024,
        "selected_iterations": {
          "gso_000_input4": 3,
          "gso_002_input4": 8,
          "gso_008_input4": 1
        },
        "selected_lambdas": {
          "gso_000_input4": 1.0,
          "gso_002_input4": 1.0,
          "gso_008_input4": 0.125
        }
      },
      "carrier_control": {
        "policy": "carrier_control",
        "case_count": 3,
        "mean_delta_chamfer_vs_carrier": 0.0,
        "mean_delta_fscore_vs_carrier": 0.0,
        "mean_joint_score": 0.0,
        "selected_iterations": {
          "gso_000_input4": 0,
          "gso_002_input4": 0,
          "gso_008_input4": 0
        },
        "selected_lambdas": {
          "gso_000_input4": 1.0,
          "gso_002_input4": 1.0,
          "gso_008_input4": 1.0
        }
      },
      "gt_joint_oracle": {
        "policy": "gt_joint_oracle",
        "case_count": 3,
        "mean_delta_chamfer_vs_carrier": -0.00055811500324122,
        "mean_delta_fscore_vs_carrier": 0.011463166411516281,
        "mean_joint_score": -0.0014751683161625224,
        "selected_iterations": {
          "gso_000_input4": 3,
          "gso_002_input4": 8,
          "gso_008_input4": 8
        },
        "selected_lambdas": {
          "gso_000_input4": 1.0,
          "gso_002_input4": 1.0,
          "gso_008_input4": 1.0
        }
      }
    },
    "loo_oracle_match_count": 2,
    "loo_oracle_match_rate": 0.6666666666666666,
    "loo_mean_joint": -0.0010409518764472024,
    "a66_mean_joint": -0.0009298794336918137,
    "a77_retrospective_mean_joint": -0.0014751683161625224,
    "gt_oracle_mean_joint": -0.0014751683161625224,
    "a76_best_posthoc_joint": -0.00015062746964978867,
    "loo_gap_to_oracle_joint": 0.00043421643971532,
    "loo_delta_vs_a66_joint": -0.0001110724427553887,
    "recommended_next_signal": "A78 LOO is a stress audit, not enough data for a learned router. Next version should expand observation-state labels to 10-case/proxy trajectories before proposing the final sampler architecture."
  },
  "conclusion": {
    "status": "stress_test_needed_before_architecture",
    "summary": "A78 tests whether the A77 observation-state variables survive held-out pressure. Because only three active trajectories exist, the result should guide architecture design but not be treated as final evidence."
  }
}