Files
sim-numerics/results_diag_model_order_checks.txt
T
vvsandClaude Opus 5 f5d036c9d8 Why the wide-bracket gap remains, taken apart on the SAME evaluations: 'order of the model' explains only a third. Of the 262 evaluations lost on 33 problems, 178 sit on fun3-fun6 - pure powers of order 3, 5, 9, 19 - where no interpolating model works (our step 0.41-0.81 bracket halvings per evaluation, IQI from our own points 0.01-0.17) and Chandrupatla wins by BISECTING 93-100% of his steps; our step is slower than bisection there and our 2x-bisection guarantee licenses it. His band inside our step confirms it per family: fun4/5/6 573/456/456 -> 296/239/235 against his 293/228/228, while +164/+111/+170/+144 on fun1/2/8/9 where it refuses good steps - slot 2's total was two opposite effects summed. Only fun1 (58) is model order: IQI from our three points 10.37 halvings against our 0.62; a convex two-point step cannot carry IQI's negative weight (428/428 non-degenerate states; five underflowed to -0.0).
The flat regime is not detectable by the three-point order estimate: m >= 2 (the exact condition for a tangent step to lose to a halving) fires on 0.2% of APS states and on only 5.8% of states of pure powers of order 3-19. Paper corrected where it said the whole gap is model order (widelimit, decision, abstract, future work - the refuted log transform removed). WARNING recorded in FINDINGS_model_order.md: article/sim_numerics.tex has carried a STALE header since the first commit (current text = sim_numerics.md, unchanged since 08-24); every paper edit of 09-20/21 went into the .tex, the .md has none of them. Which file is canonical is Valeri's call. The new text numbers trace to results_diag_*.txt but are not yet machine-checked by verify_article.py. Trace hook in pure_root is behaviour-neutral and pinned; 762 pass on the server twice.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-21 07:38:16 +01:00

19 lines
1.2 KiB
Plaintext

C1 Chandrupatla on the problems where we lose, by family
family probs ours CH gap CH bisect share
fun1 3 141 83 58 74%
fun2 3 99 94 5 84%
fun3 5 344 301 43 93%
fun4 5 339 293 46 96%
fun5 5 282 228 54 100%
fun6 5 263 228 35 100%
fun8 3 47 39 8 50%
fun9 4 60 47 13 40%
total gap on the losing problems: 262
C2 the 5 states breaking 'exactly one negative weight'
fun6.1 f = [1.000e-175, -1.460e-160, -1.153e-150] w = [1.000e+00, 0.000e+00, -0.000e+00] zero weights: 2 min|f| 1.0e-175
fun6.1 f = [4.634e-163, 1.000e-175, -1.460e-160] w = [-0.000e+00, 1.000e+00, 0.000e+00] zero weights: 2 min|f| 1.0e-175
fun6.3 f = [-2.588e-172, 2.588e-153, 2.588e-153] w = [1.000e+00, 0.000e+00, -0.000e+00] zero weights: 2 min|f| 2.6e-172
fun6.3 f = [6.667e-160, -2.588e-172, 2.588e-153] w = [0.000e+00, 1.000e+00, -0.000e+00] zero weights: 2 min|f| 2.6e-172
fun6.3 f = [5.745e-156, 6.667e-160, -2.588e-172] w = [-0.000e+00, 0.000e+00, 1.000e+00] zero weights: 2 min|f| 2.6e-172