| { | |
| "CAVEATS": [ | |
| "Stored values are RAW physical fp32 fields (no normalization applied). Load solver.normalizer.FrozenNormalizer.from_json(decay_saffman_v2_norm_minmax.json or decay_saffman_v2_norm_standardize.json) to transform at load time; velocity (u,v,w) is normalized JOINTLY (one shared scale) to preserve A10 component isotropy. NOTE: the 'standardize' mode is UNBOUNDED (z-score, ~+/-5, pressure can reach ~-11); only 'minmax' maps to [-1,1].", | |
| "Normalization constants were fit on seeds [2, 3, 7] (see attrs['norm_fit_scope']). For train-only fits, held-out frames MAY slightly exceed [-1,1] under 'minmax' -- that is correct (the scale is the TRAIN absmax), not a bug.", | |
| "Frames are filtered by instantaneous k_maxeta>=1.5 and are NOT uniformly spaced in time -- use the stored 't' array (monotonic WITHIN each seed, resets at seed boundaries), do not assume uniform dt.", | |
| "The 'seed' array stores the TRUE IC pool number (_corpus->0, _corpus_poolK->K), so a loader can filter the zarr by (case, seed) exactly as the by-IC split manifest emits; rejected seeds are simply absent (no compaction/relabeling).", | |
| "The corpus under-samples the strong-dissipation (eps-peak) tail; high-order intermittency statistics are a lower bound (see DATASHEET.md)." | |
| ], | |
| "case": "decay_saffman_v2", | |
| "channels": [ | |
| "velocity (u,v,w joint)", | |
| "p" | |
| ], | |
| "complete": true, | |
| "compute_precision": "fp64", | |
| "n_frames": 400, | |
| "n_seeds": 8, | |
| "norm_fit_scope": "decay_saffman_v2: fit on 150/400 frames from seeds [2, 3, 7] (--seed-filter train; 20260715T104201Z)", | |
| "normalizer": "solver.normalizer.FrozenNormalizer (velocity JOINT, vetted q2)", | |
| "pressure_source": "operators.pressure_hat (D4-certified)", | |
| "storage_precision": "fp32" | |
| } |