{ "what": "the ablation effect in nats, the unit the papers' bodies now use", "why_not_control_units": "at 83.9 B and 2,034 B the control SD is ~2.2x its own mean and still rising with the mask count while the mean is flat, so the unit's denominator has not converged; the same ratio is 1.04 at 4.19 B. Measured on the 200-mask run's nested prefixes (50/100/200).", "definition": { "rise_over_random_nats": "PRIMARY. (loss rise with the carrier set zeroed) minus (mean loss rise over the size-matched random sets), in nats, at the construct's own positions. Signed; no absolute value is taken anywhere.", "ratio_rise_to_random": "the carriers' rise divided by the random sets' mean rise. Reported as a RATIO OF MEDIANS over the constructs, because per construct the denominator runs down to and below zero at the later references. Per-construct ratios are given only where the control mean is > 0.", "sign_test": "count of constructs with rise_over_random_nats > 0, one-sided binomial against p = 0.5, over the 16 constructs at that reference.", "interval": "construct bootstrap, 10000 resamples of the 16 constructs with replacement, 95% percentile interval, seed 20261023. It describes the spread over constructs, not over control masks.", "old_set_at_the_end": "the 84 B carrier set removed at the end of pretraining, under the SAME masks as the current set: against the random sets (drifted - random mean) and against the current set (drifted - current).", "control_units": "retained ONLY in Table D.1, with each cell's mask count and stability flag." }, "fixed_before_computing": true, "n_bootstrap": 10000, "seed": 20261023, "nested_prefixes": [ 50, 100, 200 ], "per_reference": { "pretrain_iter_0001000": { "tokens_b": 4.19, "n_constructs": 16, "median_rise_over_random_nats": { "point": 0.06004436395484443, "lo": 0.024286819103405632, "hi": 0.13978772430179226, "n": 16 }, "ratio_of_medians_rise_to_random": { "point": 1.8061572238751271, "lo": 0.9761315558087134, "hi": 3.0569293693446005, "n": 16, "n_bootstrap_draws_usable": 10000 }, "sign_test_rise_over_random": { "n_above_zero": 12, "n": 16, "p": 0.0384063720703125 }, "median_carrier_rise_nats": 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"NamedExpr": { "rise_over_random_nats": -0.14858770022025558, "carrier_rise_nats": -0.06559552901830479, "control_mean_nats": 0.08299217120195078, "ratio_rise_to_random": -0.7903821296431263, "old_set_rise_nats": null, "old_set_over_random_nats": null, "old_set_minus_current_nats": null }, "SetComp": { "rise_over_random_nats": 0.0414091395061026, "carrier_rise_nats": 0.11136166093313093, "control_mean_nats": 0.06995252142702833, "ratio_rise_to_random": 1.5919606421806962, "old_set_rise_nats": null, "old_set_over_random_nats": null, "old_set_minus_current_nats": null }, "Try": { "rise_over_random_nats": 1.2425026400511898, "carrier_rise_nats": 1.3229805639758707, "control_mean_nats": 0.08047792392468081, "ratio_rise_to_random": 16.43904936233254, "old_set_rise_nats": null, "old_set_over_random_nats": null, "old_set_minus_current_nats": null }, "While": { "rise_over_random_nats": -0.039820757364221936, "carrier_rise_nats": -0.014500070499991025, "control_mean_nats": 0.02532068686423091, "ratio_rise_to_random": -0.5726570759213664, "old_set_rise_nats": null, "old_set_over_random_nats": null, "old_set_minus_current_nats": null }, "With": { "rise_over_random_nats": 0.17854971480688853, "carrier_rise_nats": 0.28541309173618057, "control_mean_nats": 0.10686337692929204, "ratio_rise_to_random": 2.670822314786374, "old_set_rise_nats": null, "old_set_over_random_nats": null, "old_set_minus_current_nats": null } } }, "pretrain_iter_0020000": { "tokens_b": 83.9, "n_constructs": 16, "median_rise_over_random_nats": { "point": 0.25268668652530085, "lo": 0.02602596914825126, "hi": 0.6588617618729049, "n": 16 }, "ratio_of_medians_rise_to_random": { "point": 11.174771508709787, "lo": 1.7271411001670052, "hi": 52.5190763881226, "n": 16, "n_bootstrap_draws_usable": 10000 }, "sign_test_rise_over_random": { "n_above_zero": 14, "n": 16, "p": 0.0020904541015625 }, "median_carrier_rise_nats": 0.32930909617916604, "median_control_mean_nats": 0.029468978038834845, "per_construct_ratio": { 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