{
  "experiment": "A74 LOO Pareto ranker audit",
  "protocol": {
    "source_a73": "/home/jiachen/TRELLIS/experiments/nonorthogonal_gpt_orthoview/outputs/data_survey/vggt_spatial_adapter/support_guidance_a73_per_region_lambda_pareto/analysis.json",
    "selection_features": [
      "bias",
      "visible",
      "conflict",
      "neutral",
      "unobserved",
      "mean_lambda",
      "lambda_std",
      "conflict_minus_visible",
      "conflict_minus_restmax",
      "neutral_unobserved_sum",
      "mean_move_milli",
      "p95_move_milli",
      "is_carrier",
      "is_scalar",
      "is_conflict_only",
      "visible_over_half",
      "unobserved_over_conflict"
    ],
    "selection_uses_gt_for_heldout": false,
    "training_uses_gt_labels_on_train_cases": true,
    "heldout_protocol": "leave-one-case-out over the three A73 active cases",
    "rankers": [
      "a73_weak_proxy",
      "lambda_order_prior",
      "moderate_scalar_prior",
      "loo_linear_joint_ranker",
      "hard_lambda_1",
      "carrier_zero",
      "a73_gt_oracle_upper_bound"
    ],
    "limitation": "A74 is a retrospective ranker audit on only three active cases. It tests whether lambda/motion priors are sufficient; it does not prove generalization to unseen object categories."
  },
  "aggregate": {
    "active_case_count": 3,
    "ten_case_count": 10,
    "random_weight_count": 9000,
    "joint_f_weight": 0.08,
    "rankers": {
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        "nonzero_count": 3,
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        "mean_delta_chamfer_10case": -8.858090957966635e-06,
        "mean_delta_fscore_10case": 0.0002588703647283558,
        "mean_joint_score_10case": -2.9567720136235098e-05,
        "gap_to_a73_oracle_joint": 0.0002792979249533011,
        "gap_to_a53_reference_joint": 0.0003552825102254115,
        "selected_candidates": {
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            "lambdas": {
              "surface_improved": 0.35,
              "surface_conflict": 1.0,
              "surface_neutral": 0.7,
              "unobserved_closable": 0.5
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            "delta_chamfer_vs_carrier": 7.412520754446206e-05,
            "delta_fscore_vs_carrier": -0.0020922470471264054,
            "joint_score": 0.0002415049713145745,
            "on_pareto_front": false
          },
          "gso_002_input4": {
            "candidate": "probe_v0.250_c0.750_r0.500",
            "lambdas": {
              "surface_improved": 0.25,
              "surface_conflict": 0.75,
              "surface_neutral": 0.5,
              "unobserved_closable": 0.5
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            "delta_fscore_vs_carrier": 0.004680678456703502,
            "joint_score": -0.0005351809769575566,
            "on_pareto_front": false
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          "gso_008_input4": {
            "candidate": "probe_v0.250_c0.750_r0.500",
            "lambdas": {
              "surface_improved": 0.25,
              "surface_conflict": 0.75,
              "surface_neutral": 0.5,
              "unobserved_closable": 0.5
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            "delta_chamfer_vs_carrier": -1.979416702851955e-06,
            "delta_fscore_vs_carrier": 2.7223770646123135e-07,
            "joint_score": -2.0011957193688534e-06,
            "on_pareto_front": false
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        "selected_count": 3,
        "nonzero_count": 3,
        "pareto_selected_count": 0,
        "mean_delta_chamfer_10case": -6.160956715672156e-06,
        "mean_delta_fscore_10case": 0.0002879556130294253,
        "mean_joint_score_10case": -2.9197405758026183e-05,
        "gap_to_a73_oracle_joint": 0.00027966823933150997,
        "gap_to_a53_reference_joint": 0.0003556528246036204,
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              "unobserved_closable": 0.0
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            "on_pareto_front": false
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          "gso_008_input4": {
            "candidate": "template_v0.125_c0.750_n0.250_u0.125",
            "lambdas": {
              "surface_improved": 0.125,
              "surface_conflict": 0.75,
              "surface_neutral": 0.25,
              "unobserved_closable": 0.125
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            "delta_chamfer_vs_carrier": 6.990755611291366e-05,
            "delta_fscore_vs_carrier": 0.0002868004212460973,
            "joint_score": 4.6963522413225876e-05,
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      "moderate_scalar_prior": {
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        "mean_delta_fscore_10case": 0.0007678604195963223,
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      "hard_lambda_1": {
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        "mean_delta_chamfer_10case": -8.919863608208289e-05,
        "mean_delta_fscore_10case": 0.0007678604195963223,
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          "gso_008_input4": {
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              "surface_neutral": 1.0,
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      "carrier_zero": {
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        "mean_joint_score_10case": 0.0,
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          "gso_008_input4": {
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      },
      "a73_gt_oracle_upper_bound": {
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        "nonzero_count": 3,
        "pareto_selected_count": 3,
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        "selected_candidates": {
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          "gso_008_input4": {
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      },
      "loo_linear_joint_ranker": {
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        "mean_delta_chamfer_10case": -8.342649668938857e-06,
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        "gap_to_a73_oracle_joint": 0.00025841748966491456,
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        "selected_candidates": {
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    },
    "best_no_gt_ranker_by_joint": "moderate_scalar_prior",
    "best_no_gt_joint_score_10case": -0.00015062746964978867,
    "best_no_gt_gap_to_a73_oracle_joint": 0.0001582381754397475,
    "best_no_gt_gap_to_a53_reference_joint": 0.00023422276071185792,
    "a73_oracle_joint_score_10case": -0.00030886564508953617,
    "a73_weak_proxy_joint_score_10case": -2.9567720136235098e-05,
    "a73_hard_joint_score_10case": -0.00015062746964978867,
    "a53_reference_joint_score_10case": -0.0003848502303616466,
    "a53_reference_delta_chamfer_10case": -0.00026892608090207243,
    "a53_reference_delta_fscore_10case": 0.0014490518682446774,
    "recommended_next_signal": "Simple lambda-only rankers are insufficient if the best LOO no-GT ranker remains far from the A73 oracle; the next predictor must include observation-conditioned VGGT/MV residual features or move the regional budget into sampler-time guidance."
  },
  "case_summaries": [
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      "loo_linear_joint": 7.477068034007273e-05,
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  ],
  "loo_details": [
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    }
  ],
  "conclusion": "Best no-GT ranker is moderate_scalar_prior. If its oracle gap remains positive, A73's proxy bottleneck is not solved by lambda-only ranking; future work should add VGGT/MV observation residuals or optimize the regional budget during denoising rather than post-hoc mesh interpolation."
}