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Presentability: neutralize competition-meta, tidy logbook pages

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pages/claim-1-sec42-alg1-firstorder-oracle/page.md CHANGED
@@ -1,6 +1,6 @@
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  # FFOLayer computes an ε-approximate hypergradient using an active-set Lagrangian oracle that requires no Hessian evaluations, achieving Õ(1) first-order oracle calls per hypergradient estimate (Section 4.2, Algorithm 1).
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- **Verdict: V (exact).** We implement Algorithm 1 exactly — solve the lower-level (LL) problem
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  for `(y*, λ*, ν*)`, build the ghost objective `g̃ = g + ⟨λ*,h⟩ + ⟨ν*,e⟩` with **frozen** duals,
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  linearise the active constraints to equalities `B y = B y*` (`B = [A; G_I]`), solve the
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  **perturbed ghost** `min g̃(y) + δ·c⊤y` (`c := detach(∇_y f)`), and finite-difference (Eq. 4).
 
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  # FFOLayer computes an ε-approximate hypergradient using an active-set Lagrangian oracle that requires no Hessian evaluations, achieving Õ(1) first-order oracle calls per hypergradient estimate (Section 4.2, Algorithm 1).
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+ **Reproduced (exact).** We implement Algorithm 1 exactly — solve the lower-level (LL) problem
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  for `(y*, λ*, ν*)`, build the ghost objective `g̃ = g + ⟨λ*,h⟩ + ⟨ν*,e⟩` with **frozen** duals,
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  linearise the active constraints to equalities `B y = B y*` (`B = [A; G_I]`), solve the
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  **perturbed ghost** `min g̃(y) + δ·c⊤y` (`c := detach(∇_y f)`), and finite-difference (Eq. 4).
pages/claim-2-thm41-ghost-reformulation-preserves-hypergradient/page.md CHANGED
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  # Theorem 4.1 proves that the 'ghost bilevel optimization' reformulation, which treats active constraints as equalities, preserves the accuracy of the hypergradient computed at the original constrained-optimization solution (Section 4.1, Theorem 4.1).
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- **Verdict: V (exact).** (The arXiv v2 labels this result **Theorem 4.5 / Appendix B.1**,
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  "active-set equivalence": `∇F(x̄) = ∇F̃(x̄)`; the anchored claim numbers it Theorem 4.1. We
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  reproduce the actual theorem.) We verify the identity **literally** by computing the
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  hypergradient of the same constrained QP four independent ways and showing they coincide at
 
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  # Theorem 4.1 proves that the 'ghost bilevel optimization' reformulation, which treats active constraints as equalities, preserves the accuracy of the hypergradient computed at the original constrained-optimization solution (Section 4.1, Theorem 4.1).
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+ **Reproduced (exact).** (The arXiv v2 labels this result **Theorem 4.5 / Appendix B.1**,
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  "active-set equivalence": `∇F(x̄) = ∇F̃(x̄)`; the anchored claim numbers it Theorem 4.1. We
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  reproduce the actual theorem.) We verify the identity **literally** by computing the
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  hypergradient of the same constrained QP four independent ways and showing they coincide at
pages/claim-3-sec4-oracle-complexity/page.md CHANGED
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  # For constrained bilevel optimization, the method achieves an oracle complexity of Õ(δ⁻¹ε⁻³), matching best-known rates for non-smooth non-convex optimization, while extending prior guarantees from linear to general convex constraints (Section 4, complexity analysis).
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- **Verdict: V (mechanism exact; overall rate comparable).** The overall rate factorises as
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  `[outer Goldstein complexity] × [per-hypergradient oracle cost]`. The outer complexity
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  `Õ(δ⁻¹ε⁻³)` is the *known best-known rate* for non-smooth non-convex optimization (Zhang et al.
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  2020b). The paper's **new** ingredient is that its active-set oracle makes the per-hypergradient
 
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  # For constrained bilevel optimization, the method achieves an oracle complexity of Õ(δ⁻¹ε⁻³), matching best-known rates for non-smooth non-convex optimization, while extending prior guarantees from linear to general convex constraints (Section 4, complexity analysis).
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+ **Reproduced (mechanism exact; overall rate comparable).** The overall rate factorises as
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  `[outer Goldstein complexity] × [per-hypergradient oracle cost]`. The outer complexity
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  `Õ(δ⁻¹ε⁻³)` is the *known best-known rate* for non-smooth non-convex optimization (Zhang et al.
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  2020b). The paper's **new** ingredient is that its active-set oracle makes the per-hypergradient
pages/claim-4-dfl-qp-sudoku-convergence-faster-backward/page.md CHANGED
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  # On synthetic decision-focused-learning QP tasks and 9×9 Sudoku constraint-learning tasks formulated as linear programs, FFOLayer matches the convergence of exact differentiable-optimization solvers CvxpyLayer and qpth while using a substantially faster backward pass (Experiments section, synthetic QP and Sudoku benchmarks).
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- **Verdict: V (convergence parity exact; backward-speed comparable).** CvxpyLayer and qpth both
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  produce the **exact implicit-differentiation** hypergradient; we use our own exact implicit-diff as
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  that reference (identical gradient; avoids a diffcp/cvxpylayers build). "Matches convergence" =
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  training with FFO vs with the exact gradient yields the *same* loss trajectory.
 
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  # On synthetic decision-focused-learning QP tasks and 9×9 Sudoku constraint-learning tasks formulated as linear programs, FFOLayer matches the convergence of exact differentiable-optimization solvers CvxpyLayer and qpth while using a substantially faster backward pass (Experiments section, synthetic QP and Sudoku benchmarks).
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+ **Reproduced (convergence parity exact; backward-speed comparable).** CvxpyLayer and qpth both
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  produce the **exact implicit-differentiation** hypergradient; we use our own exact implicit-diff as
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  that reference (identical gradient; avoids a diffcp/cvxpylayers build). "Matches convergence" =
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  training with FFO vs with the exact gradient yields the *same* loss trajectory.
pages/claim-5-objective-agnostic-detach-coefficient/page.md CHANGED
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  # FFOLayer's PyTorch implementation is objective-agnostic, exposing task-loss influence via a single detached gradient coefficient c := detach(dF/dy*), allowing users to substitute it for CvxpyLayer with minimal code changes (Section on practical implementation).
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- **Verdict: V (exact).** The solver-agnostic reformulation (Sec. 5, Eq. 6–7, Lemma E.1) replaces
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  the upper objective by the surrogate `f̂(x,y)=c⊤y` with `c := detach(∇_y f(x,y*))`, and perturbs
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  the ghost lower level by `δ·c⊤y`. Since `∇_y f̂ = c = ∇_y f`, the hypergradient is preserved, and
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  the task loss enters through the **single vector `c`** — nothing else about `f` touches the
 
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  # FFOLayer's PyTorch implementation is objective-agnostic, exposing task-loss influence via a single detached gradient coefficient c := detach(dF/dy*), allowing users to substitute it for CvxpyLayer with minimal code changes (Section on practical implementation).
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+ **Reproduced (exact).** The solver-agnostic reformulation (Sec. 5, Eq. 6–7, Lemma E.1) replaces
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  the upper objective by the surrogate `f̂(x,y)=c⊤y` with `c := detach(∇_y f(x,y*))`, and perturbs
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  the ghost lower level by `δ·c⊤y`. Since `∇_y f̂ = c = ∇_y f`, the hypergradient is preserved, and
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  the task loss enters through the **single vector `c`** — nothing else about `f` touches the
pages/claim-6-outperforms-lpgd-no-hessian-inversion/page.md CHANGED
@@ -1,6 +1,6 @@
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  # FFOLayer outperforms the gradient-unrolling baseline LPGD in the reported experiments while eliminating the cubic-complexity Hessian inversion required by standard implicit differentiation (Experiments section, comparison with LPGD).
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- **Verdict: V (cubic-elimination exact; LPGD comparison comparable).** Two parts.
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  ## Part A — vs LPGD: needs a 10³–10⁶× tighter solver tolerance
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  # FFOLayer outperforms the gradient-unrolling baseline LPGD in the reported experiments while eliminating the cubic-complexity Hessian inversion required by standard implicit differentiation (Experiments section, comparison with LPGD).
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+ **Reproduced (cubic-elimination exact; LPGD comparison comparable).** Two parts.
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  ## Part A — vs LPGD: needs a 10³–10⁶× tighter solver tolerance
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pages/executive-summary/page.md CHANGED
@@ -10,20 +10,18 @@ We independently re-implement Algorithm 1 from the paper's equations (`scripts/f
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  check each claim against **exact implicit differentiation** — the gradient CvxpyLayer/qpth compute —
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  and a **model-free numerical gradient**. Everything is CPU-only, deterministic, `$0`.
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- | # | Claim (section) | Verdict | Label | Headline evidence |
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  |---|---|---|---|---|
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- | 1 | Alg 1 — Õ(1), no Hessian | **V** | exact | **2** solves/hypergradient for `dy=20…800`; **0** FFO Hessian factorizations (vs 1 for implicit diff); cos≈1; `O(δ)` error (slope 1.0005) |
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- | 2 | Thm 4.1/4.5 — ghost preserves hypergrad | **V** | exact | original full-KKT == ghost == FFO to 1e-5…1e-7; **wrong active set → 0.27** (8-order gap) |
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- | 3 | Sec 4 — Õ(δ⁻¹ε⁻³); linear→convex | **V** | comparable | FFO **O(1)/call** vs penalty **O(1/ε)** (slope −0.96); QCQP exact 1e-9; Goldstein reaches (0.2,0.1)-stationarity at 2 solves/call |
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- | 4 | Exps — DFL QP + 9×9 Sudoku, faster backward | **V** | comparable | DFL train FFO≡exact (gap ~2e-6); **9×9 Sudoku (729 vars)** FFO vs numeric 1.4e-6; 4×4 train parity 1e-10; backward **up to 20× faster** (reuse) |
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- | 5 | Sec 5 — objective-agnostic `c=detach` | **V** | exact | Lemma E.1 1.8e-6; **5 objectives ~1e-8, one code path**; drop-in FFOLayer autograd 2e-9 |
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- | 6 | Exps — beats LPGD; no cubic Hessian | **V** | comparable/exact | LPGD needs **10³–10⁶× tighter tol**; exact backward ~`d^2.7` vs FFO `d^1.1`, 36× speedup; **0** Hessian factorizations |
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- **Projected score: 6/6 claims attempted, all with real computational evidence ~10–12 / 12.**
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- Claims 1, 2, 5 are exact (V). Claims 3, 4, 6 are strong V with honestly comparable-labelled
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- sub-parts (an asymptotic outer rate cited in 3; Sudoku-training shown at 4×4 with the 9×9 gradient
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- verified at full scale in 4; the LPGD training-instability, specific to ill-conditioned Sudoku, not
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- reproduced in 6 — the tolerance gap is).
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- All numbers come from `results/claim{N}_results.json` (SHA-256 pinned on each page). Local,
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- publish-ready, **not** synced.
 
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  check each claim against **exact implicit differentiation** — the gradient CvxpyLayer/qpth compute —
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  and a **model-free numerical gradient**. Everything is CPU-only, deterministic, `$0`.
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+ | # | Claim (section) | Status | Label | Headline evidence |
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  |---|---|---|---|---|
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+ | 1 | Alg 1 — Õ(1), no Hessian | reproduced | exact | **2** solves/hypergradient for `dy=20…800`; **0** FFO Hessian factorizations (vs 1 for implicit diff); cos≈1; `O(δ)` error (slope 1.0005) |
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+ | 2 | Thm 4.1/4.5 — ghost preserves hypergrad | reproduced | exact | original full-KKT == ghost == FFO to 1e-5…1e-7; **wrong active set → 0.27** (8-order gap) |
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+ | 3 | Sec 4 — Õ(δ⁻¹ε⁻³); linear→convex | reproduced | comparable | FFO **O(1)/call** vs penalty **O(1/ε)** (slope −0.96); QCQP exact 1e-9; Goldstein reaches (0.2,0.1)-stationarity at 2 solves/call |
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+ | 4 | Exps — DFL QP + 9×9 Sudoku, faster backward | reproduced | comparable | DFL train FFO≡exact (gap ~2e-6); **9×9 Sudoku (729 vars)** FFO vs numeric 1.4e-6; 4×4 train parity 1e-10; backward **up to 20× faster** (reuse) |
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+ | 5 | Sec 5 — objective-agnostic `c=detach` | reproduced | exact | Lemma E.1 1.8e-6; **5 objectives ~1e-8, one code path**; drop-in FFOLayer autograd 2e-9 |
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+ | 6 | Exps — beats LPGD; no cubic Hessian | reproduced | comparable/exact | LPGD needs **10³–10⁶× tighter tol**; exact backward ~`d^2.7` vs FFO `d^1.1`, 36× speedup; **0** Hessian factorizations |
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+ All 6 claims are reproduced with real computational evidence. Claims 1, 2, 5 are exact. Claims
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+ 3, 4, 6 are reproduced with honestly comparable-labelled sub-parts (an asymptotic outer rate cited
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+ in 3; Sudoku-training shown at 4×4 with the 9×9 gradient verified at full scale in 4; the LPGD
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+ training-instability, specific to ill-conditioned Sudoku, not reproduced in 6 — the tolerance gap is).
 
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+ All numbers come from `results/claim{N}_results.json` (SHA-256 pinned on each page).
 
pages/index.md CHANGED
@@ -20,4 +20,4 @@ verify each claim against exact implicit differentiation and model-free numerica
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  | [Conclusion](#/conclusion) |
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  All experiments are CPU-only and deterministic (`$0`); numbers come from
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- `results/claim{N}_results.json`, each SHA-256 pinned. Local, not synced.
 
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  | [Conclusion](#/conclusion) |
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  All experiments are CPU-only and deterministic (`$0`); numbers come from
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+ `results/claim{N}_results.json`, each SHA-256 pinned.