Giorgio Gilestro
1721d047fa
Finishes the Layer 1 analytical core. All six experiments run with honest, publication-quality figures; 71 tests green. - E3 region-matched grounding: `grounding.exercised` knob + per-region tail survival. Matched holds the exercised region's tail (0.49) where uniform spreads thin and lets it collapse (0.07). - E4 multi-teacher recombination: `run_coverage` runner. Union coverage matches U(K_T,rho,q) exactly. Finding: mean-mixture distillation shows NO surviving benefit (a conservation law — 1/K_T dilution cancels the union gain); a union-preserving max-merge (M2N2-style) does. E4 reports both operators. - E5 QD vs greedy: greedy drives fixation (H~0.01); QD holds H at 0.48-0.88, rising with the novelty exponent. - E6 re-mint gate: `arm` multi-override sweep. Re-minting a collapsed lineage locks in divergence of KL-to-original; gating on diversity prevents it. - E2 analysis add-ons (from the companion work order, numbers verified): new analysis.py (reduce_to_stationary, critical_grounding with bootstrap CI -> g*=0.048, 95% CI [0.047,0.050]); tail_band_metrics + per-band logging; the E2 figure rebuilt as a 2x2 (defined g*+CI, g=0 flagged as a finite-time artifact, tail item-vs-mass, per-rarity-band panel). Uses truth-mass-weighted tail coverage rather than the raw (martingale) tail_mass. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
46 lines
1.8 KiB
YAML
46 lines
1.8 KiB
YAML
experiment: E6_remint_gate
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seed: 20260704
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n_replicates: 100
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generations: 400
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# Re-minting gate / irreversibility (blueprint 2.5-E6). Re-minting freezes the current
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# distribution as the new grounding reference and DISCARDS the original truth. Compare
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# re-minting a healthy (high-H) vs a collapsed (low-H) lineage, and the protective effect
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# of gating re-mint on diversity. Metric: forward KL to the ORIGINAL truth. A collapsed
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# re-mint locks KL high forever (original tails unrecoverable); a gated lineage refuses to
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# re-mint while collapsed, so the original truth is retained and KL is not locked.
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truth:
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K: 500
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R: 1
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tail: zipf
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zipf_s: 1.1
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tail_frac: 0.5
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tail_threshold: 1.0e-3
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init: truth
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dynamics:
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n: 200
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teachers: {K_T: 1, rho: 0.0, q: 1.0}
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grounding: {m: 3, policy: proportional}
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selection: {mode: none, novelty_alpha: 0.0}
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remint: {enabled: false, period: 150, H_gate: null}
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metrics:
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kl_floor: 1.0e-9
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support_eps: 1.0e-9
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# Arms vary grounding strength (healthy vs collapsing) and remint policy together.
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sweep:
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- param: arm
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values:
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- name: healthy_remint # strong grounding -> H stays high; re-mint is harmless
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set: {dynamics.grounding.m: 60, dynamics.remint.enabled: true, dynamics.remint.H_gate: null}
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- name: collapsed_remint # weak grounding -> collapses; ungated re-mint locks it in
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set: {dynamics.grounding.m: 1, dynamics.remint.enabled: true, dynamics.remint.H_gate: null}
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- name: collapsed_gated # weak grounding; gate (0.75) blocks re-mint while H is low
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set: {dynamics.grounding.m: 1, dynamics.remint.enabled: true, dynamics.remint.H_gate: 0.75}
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- name: collapsed_noremint # weak grounding baseline; original truth always retained
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set: {dynamics.grounding.m: 1, dynamics.remint.enabled: false}
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output:
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dir: results/E6
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