depth-probe artifacts: probe-dependent layer ranking, scaling curves, SugarCrepe fitted re-test, banked null
9497609 verified | { | |
| "question": "is the L60 collapse lost information or a readout that lost reach", | |
| "method": "shipped head recipe: two 1024-d towers, InfoNCE, fitted per layer", | |
| "control": "a fitted head at L47 must clearly beat head-free, or the instrument is invalid", | |
| "n_images": 30000, | |
| "n_train": 28000, | |
| "n_holdout": 2000, | |
| "backbone": "google/gemma-4-31B-it", | |
| "results": { | |
| "L20": { | |
| "head_free": { | |
| "r@1": 0.06650000065565109, | |
| "r@10": 0.23800000548362732, | |
| "median_rank": 145.0 | |
| }, | |
| "fitted_head": { | |
| "r@1": 0.3295000195503235, | |
| "r@10": 0.7630000114440918, | |
| "median_rank": 3.0 | |
| } | |
| }, | |
| "L47": { | |
| "head_free": { | |
| "r@1": 0.12250000238418579, | |
| "r@10": 0.3615000247955322, | |
| "median_rank": 31.0 | |
| }, | |
| "fitted_head": { | |
| "r@1": 0.30000001192092896, | |
| "r@10": 0.6925000548362732, | |
| "median_rank": 4.0 | |
| } | |
| } | |
| } | |
| } |