实验 83:A77 Sampler-time Regional Guidance Replay

在线区域预算回放显示 observation residual 应进入 sampler-time;v2 能解释 oracle 但仍是回顾诊断,不是泛化证明

实验定位 机制正结果 / 泛化未证明

A77 直接回应 A76 的负结果:candidate-specific residual 生成后再排序不可靠,所以这次把 A65 的 iter000-iter008 轨迹当作 sampler-time proxy,在每一步只用可观察信号做 accept / damp / stop。选择策略不读取 GT;GT Chamfer/F-score 只在策略选完后做回顾验证。

结果要分两层看:公平的预注册 no-GT 策略里,最好仍是 a66_uncertainty_damped_budget,joint=-0.0009299,明显优于 A76 post-hoc best=-0.0001506。A77 的 a77_observation_route_v2 能复现 3/3 oracle,joint=-0.0014752,但它是看过 A65/A77 failure taxonomy 后设计出的回顾诊断规则,不能当作泛化证明。它的价值是说明 late-safe、visible-recovery、saturated-damage 这三类 observation state 足以解释 oracle 行为。

A77 reuses saved A65 trajectory rows and linearly scales GT deltas for damped steps. It is a mechanism audit, not yet a real TRELLIS.2 sampler implementation.

实验设计(Image-2 风格)

实验设计图:A77 sampler-time regional guidance replay
实验设计图:A77 sampler-time regional guidance replay
模块设计图:observation-state sampler budget
模块设计图:observation-state sampler budget

模块设计(Image-2 风格)

Online Signals

  • 每个 step 读取 delta_mvd_vs_carrier、visible/neutral/conflict residual delta、region spread 和 local damage flag。
  • 只允许策略使用 observation state;GT 只用于事后评价。
  • 动作空间是 keep carrier、accept step、damp step、stop before damage。

Policy Families

  • 预注册策略:A66、damage stop、MV safe accept、saturated damp。
  • v1 adaptive 过度依赖 local damage ratio,退化成全 case 小步阻尼。
  • v2 retrospective route 把 late-safe、visible recovery、saturated damage 分开,复现 oracle,但需要 LOO/10-case 学习验证。

实验结果(表格)

policy replay comparison

policy性质mean ΔChamfermean ΔF@5jointiterslambdasdamage count
GT joint oracleGT oracle-0.00055810.011463-0.0014752{'gso_000_input4': 3, 'gso_002_input4': 8, 'gso_008_input4': 8}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 1.0}2
A77 observation route v2回顾诊断-0.00055810.011463-0.0014752{'gso_000_input4': 3, 'gso_002_input4': 8, 'gso_008_input4': 8}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 1.0}2
A66 uncertainty damped budget预注册 no-GT-0.00055180.004726-0.0009299{'gso_000_input4': 8, 'gso_002_input4': 8, 'gso_008_input4': 1}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 0.125}2
A65 min region spread预注册 no-GT-0.00019430.005121-0.0006040{'gso_000_input4': 3, 'gso_002_input4': 8, 'gso_008_input4': 1}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 1.0}2
A77 saturated damp预注册 no-GT0.00003700.0000740.0000311{'gso_000_input4': 1, 'gso_002_input4': 1, 'gso_008_input4': 1}{'gso_000_input4': 0.125, 'gso_002_input4': 0.125, 'gso_008_input4': 0.125}1
A77 adaptive v1预注册 no-GT0.00003700.0000740.0000311{'gso_000_input4': 1, 'gso_002_input4': 1, 'gso_008_input4': 1}{'gso_000_input4': 0.125, 'gso_002_input4': 0.125, 'gso_008_input4': 0.125}1
A77 online damage stop预注册 no-GT0.00023210.0009800.0001537{'gso_000_input4': 8, 'gso_002_input4': 1, 'gso_008_input4': 2}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 1.0}2
A77 MV safe accept预注册 no-GT0.0009718-0.0013410.0010791{'gso_000_input4': 6, 'gso_002_input4': 0, 'gso_008_input4': 3}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 1.0}2
carrier control预注册 no-GT0.00000000.0000000.0000000{'gso_000_input4': 0, 'gso_002_input4': 0, 'gso_008_input4': 0}{'gso_000_input4': 1.0, 'gso_002_input4': 1.0, 'gso_008_input4': 1.0}0

case routing details

casedamage ratioMV improve stepsA66 choiceA66 iterA77 v2 choicev2 ΔChamferv2 ΔF@5v2 route reasons
gso_000_input40.7503iter8 / λ=1.0008iter3 / λ=1.000-0.00041590.000512online rule: saturated local damage trajectory; damage_ratio=0.750 >= 0.750; damp first step with lambda=0.125
gso_002_input40.7508iter8 / λ=1.0008iter8 / λ=1.000-0.00160530.015600online rule: saturated local damage trajectory; damage_ratio=0.750 >= 0.750; damp first step with lambda=0.125
gso_008_input41.0005iter1 / λ=0.1251iter8 / λ=1.0000.00034680.018277online rule: saturated local damage trajectory; damage_ratio=1.000 >= 0.750; damp first step with lambda=0.125

可视化结果

A77 joint comparison
A77 joint comparison
A77 Chamfer delta magnitude
A77 Chamfer delta magnitude
A77 F-score delta magnitude
A77 F-score delta magnitude

实验结论

下一步想法