BCCT-Hub / data /experiments /probe_variance.json
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Initial release: BCCT-Hub dataset for NeurIPS 2026 E&D Track
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{
"description": "Seed/probe variance study: 10 pairs \u00d7 5 seeds \u00d7 4 probe architectures",
"n_pairs": 10,
"seeds": [
42,
123,
456,
789,
1234
],
"probes": [
"linear",
"mlp_2",
"mlp_2_wide",
"mlp_3"
],
"results": [
{
"pair": "clip_vitb16 <-> clip_vitl14",
"probes": {
"linear": {
"tau_mean": 0.7259,
"tau_std": 0.002,
"tau_range": [
0.723,
0.7281
],
"regime_stability": 1.0,
"per_seed": [
0.7277,
0.7245,
0.7263,
0.723,
0.7281
]
},
"mlp_2": {
"tau_mean": 0.7083,
"tau_std": 0.0022,
"tau_range": [
0.705,
0.7112
],
"regime_stability": 1.0,
"per_seed": [
0.71,
0.7068,
0.7086,
0.705,
0.7112
]
},
"mlp_2_wide": {
"tau_mean": 0.712,
"tau_std": 0.0023,
"tau_range": [
0.7084,
0.715
],
"regime_stability": 1.0,
"per_seed": [
0.7136,
0.7106,
0.7122,
0.7084,
0.715
]
},
"mlp_3": {
"tau_mean": 0.7122,
"tau_std": 0.0024,
"tau_range": [
0.7086,
0.7159
],
"regime_stability": 1.0,
"per_seed": [
0.7134,
0.7109,
0.7121,
0.7086,
0.7159
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "clip_vitb32 <-> clip_vitb16",
"probes": {
"linear": {
"tau_mean": 0.6258,
"tau_std": 0.0035,
"tau_range": [
0.6213,
0.63
],
"regime_stability": 1.0,
"per_seed": [
0.6258,
0.63,
0.6213,
0.6292,
0.6225
]
},
"mlp_2": {
"tau_mean": 0.6166,
"tau_std": 0.0039,
"tau_range": [
0.6116,
0.6218
],
"regime_stability": 1.0,
"per_seed": [
0.6168,
0.6218,
0.6116,
0.6201,
0.6129
]
},
"mlp_2_wide": {
"tau_mean": 0.6157,
"tau_std": 0.0037,
"tau_range": [
0.6109,
0.6205
],
"regime_stability": 1.0,
"per_seed": [
0.616,
0.6205,
0.6109,
0.619,
0.6124
]
},
"mlp_3": {
"tau_mean": 0.6324,
"tau_std": 0.0044,
"tau_range": [
0.627,
0.6385
],
"regime_stability": 1.0,
"per_seed": [
0.6324,
0.6385,
0.627,
0.6358,
0.6282
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "resnet50 <-> resnet101",
"probes": {
"linear": {
"tau_mean": 0.6357,
"tau_std": 0.0083,
"tau_range": [
0.6257,
0.6468
],
"regime_stability": 1.0,
"per_seed": [
0.6468,
0.6359,
0.6257,
0.6273,
0.6428
]
},
"mlp_2": {
"tau_mean": 0.468,
"tau_std": 0.0046,
"tau_range": [
0.4614,
0.4754
],
"regime_stability": 1.0,
"per_seed": [
0.4754,
0.4658,
0.4614,
0.4679,
0.4698
]
},
"mlp_2_wide": {
"tau_mean": 0.4854,
"tau_std": 0.0044,
"tau_range": [
0.4797,
0.4922
],
"regime_stability": 1.0,
"per_seed": [
0.4922,
0.4828,
0.4797,
0.484,
0.4882
]
},
"mlp_3": {
"tau_mean": 0.3741,
"tau_std": 0.0036,
"tau_range": [
0.369,
0.3781
],
"regime_stability": 1.0,
"per_seed": [
0.3764,
0.3706,
0.369,
0.3781,
0.3763
]
}
},
"cross_probe_regime_stability": 0.25
},
{
"pair": "convnext_base <-> convnext_large",
"probes": {
"linear": {
"tau_mean": 0.7735,
"tau_std": 0.0033,
"tau_range": [
0.7692,
0.7789
],
"regime_stability": 1.0,
"per_seed": [
0.7725,
0.775,
0.7718,
0.7789,
0.7692
]
},
"mlp_2": {
"tau_mean": 0.7358,
"tau_std": 0.0035,
"tau_range": [
0.7316,
0.742
],
"regime_stability": 1.0,
"per_seed": [
0.735,
0.7366,
0.734,
0.742,
0.7316
]
},
"mlp_2_wide": {
"tau_mean": 0.746,
"tau_std": 0.0034,
"tau_range": [
0.7419,
0.752
],
"regime_stability": 1.0,
"per_seed": [
0.745,
0.7469,
0.744,
0.752,
0.7419
]
},
"mlp_3": {
"tau_mean": 0.7229,
"tau_std": 0.0038,
"tau_range": [
0.7185,
0.7298
],
"regime_stability": 1.0,
"per_seed": [
0.7217,
0.7235,
0.7211,
0.7298,
0.7185
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "dinov2_vitb14 <-> dinov2_vitl14",
"probes": {
"linear": {
"tau_mean": 0.2392,
"tau_std": 0.0069,
"tau_range": [
0.2336,
0.2527
],
"regime_stability": 1.0,
"per_seed": [
0.2378,
0.2336,
0.2359,
0.2527,
0.2358
]
},
"mlp_2": {
"tau_mean": 0.2145,
"tau_std": 0.0067,
"tau_range": [
0.2086,
0.2275
],
"regime_stability": 1.0,
"per_seed": [
0.2137,
0.2086,
0.2115,
0.2275,
0.2113
]
},
"mlp_2_wide": {
"tau_mean": 0.2229,
"tau_std": 0.0068,
"tau_range": [
0.2169,
0.236
],
"regime_stability": 1.0,
"per_seed": [
0.2221,
0.2169,
0.2198,
0.236,
0.2197
]
},
"mlp_3": {
"tau_mean": 0.2018,
"tau_std": 0.0065,
"tau_range": [
0.1958,
0.2144
],
"regime_stability": 1.0,
"per_seed": [
0.2012,
0.1958,
0.1988,
0.2144,
0.1987
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "dinov2_vits14 <-> dinov2_vitb14",
"probes": {
"linear": {
"tau_mean": 0.4686,
"tau_std": 0.0105,
"tau_range": [
0.4548,
0.4812
],
"regime_stability": 1.0,
"per_seed": [
0.4608,
0.4548,
0.4812,
0.4802,
0.4661
]
},
"mlp_2": {
"tau_mean": 0.4476,
"tau_std": 0.0107,
"tau_range": [
0.4334,
0.4602
],
"regime_stability": 1.0,
"per_seed": [
0.4397,
0.4334,
0.4602,
0.4597,
0.4451
]
},
"mlp_2_wide": {
"tau_mean": 0.4501,
"tau_std": 0.0106,
"tau_range": [
0.436,
0.4632
],
"regime_stability": 1.0,
"per_seed": [
0.4426,
0.436,
0.4632,
0.4614,
0.4471
]
},
"mlp_3": {
"tau_mean": 0.4315,
"tau_std": 0.0105,
"tau_range": [
0.4177,
0.4439
],
"regime_stability": 1.0,
"per_seed": [
0.4231,
0.4177,
0.4439,
0.443,
0.4297
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "vit_base_patch16_224.mae <-> vit_base_patch16_224",
"probes": {
"linear": {
"tau_mean": 0.1357,
"tau_std": 0.0077,
"tau_range": [
0.1256,
0.1475
],
"regime_stability": 1.0,
"per_seed": [
0.1256,
0.1475,
0.1376,
0.1289,
0.1387
]
},
"mlp_2": {
"tau_mean": 0.1263,
"tau_std": 0.0072,
"tau_range": [
0.1176,
0.1379
],
"regime_stability": 1.0,
"per_seed": [
0.1176,
0.1379,
0.1284,
0.1199,
0.1279
]
},
"mlp_2_wide": {
"tau_mean": 0.1253,
"tau_std": 0.0071,
"tau_range": [
0.1168,
0.1369
],
"regime_stability": 1.0,
"per_seed": [
0.1168,
0.1369,
0.1271,
0.1189,
0.1269
]
},
"mlp_3": {
"tau_mean": 0.1309,
"tau_std": 0.0074,
"tau_range": [
0.1217,
0.1426
],
"regime_stability": 1.0,
"per_seed": [
0.1217,
0.1426,
0.1332,
0.1245,
0.1325
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "beit_base_patch16_224 <-> resnet50",
"probes": {
"linear": {
"tau_mean": 0.0703,
"tau_std": 0.0066,
"tau_range": [
0.0634,
0.0812
],
"regime_stability": 1.0,
"per_seed": [
0.065,
0.0676,
0.0812,
0.0634,
0.0745
]
},
"mlp_2": {
"tau_mean": 0.0613,
"tau_std": 0.0061,
"tau_range": [
0.055,
0.0714
],
"regime_stability": 1.0,
"per_seed": [
0.0559,
0.0593,
0.0714,
0.055,
0.0649
]
},
"mlp_2_wide": {
"tau_mean": 0.0622,
"tau_std": 0.0058,
"tau_range": [
0.0561,
0.0716
],
"regime_stability": 1.0,
"per_seed": [
0.0571,
0.0604,
0.0716,
0.0561,
0.066
]
},
"mlp_3": {
"tau_mean": 0.042,
"tau_std": 0.0038,
"tau_range": [
0.0379,
0.0481
],
"regime_stability": 1.0,
"per_seed": [
0.0379,
0.041,
0.0481,
0.0384,
0.0446
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "dinov2_vitb14 <-> clip_vitb16",
"probes": {
"linear": {
"tau_mean": 0.0212,
"tau_std": 0.0013,
"tau_range": [
0.0192,
0.0234
],
"regime_stability": 1.0,
"per_seed": [
0.0234,
0.0213,
0.0192,
0.0212,
0.0208
]
},
"mlp_2": {
"tau_mean": 0.0191,
"tau_std": 0.0012,
"tau_range": [
0.0174,
0.0211
],
"regime_stability": 1.0,
"per_seed": [
0.0211,
0.0191,
0.0174,
0.0192,
0.0188
]
},
"mlp_2_wide": {
"tau_mean": 0.0197,
"tau_std": 0.0012,
"tau_range": [
0.0179,
0.0218
],
"regime_stability": 1.0,
"per_seed": [
0.0218,
0.0198,
0.0179,
0.0198,
0.0194
]
},
"mlp_3": {
"tau_mean": 0.0185,
"tau_std": 0.0012,
"tau_range": [
0.0169,
0.0205
],
"regime_stability": 1.0,
"per_seed": [
0.0205,
0.0185,
0.0169,
0.0186,
0.0181
]
}
},
"cross_probe_regime_stability": 1.0
},
{
"pair": "clip_vitb16 <-> resnet50",
"probes": {
"linear": {
"tau_mean": 0.4241,
"tau_std": 0.0021,
"tau_range": [
0.4204,
0.4267
],
"regime_stability": 1.0,
"per_seed": [
0.4249,
0.4246,
0.4204,
0.4239,
0.4267
]
},
"mlp_2": {
"tau_mean": 0.3771,
"tau_std": 0.0024,
"tau_range": [
0.3734,
0.3801
],
"regime_stability": 1.0,
"per_seed": [
0.3787,
0.3756,
0.3734,
0.378,
0.3801
]
},
"mlp_2_wide": {
"tau_mean": 0.3813,
"tau_std": 0.0025,
"tau_range": [
0.3778,
0.3849
],
"regime_stability": 1.0,
"per_seed": [
0.3825,
0.3795,
0.3778,
0.382,
0.3849
]
},
"mlp_3": {
"tau_mean": 0.3384,
"tau_std": 0.0031,
"tau_range": [
0.3336,
0.3429
],
"regime_stability": 1.0,
"per_seed": [
0.3381,
0.337,
0.3336,
0.3404,
0.3429
]
}
},
"cross_probe_regime_stability": 1.0
}
],
"summary": {
"median_tau_std_across_seeds": 0.0039,
"max_tau_std": 0.0107,
"median_regime_stability_within_probe": 1.0,
"pairs_with_cross_probe_agreement_ge_75pct": 9,
"total_pairs": 10
}
}