table_coverage_metrics.csv

metric,label,family,n_pairs_with_value,status,reason
weight_cosine,Weight Cos. Sim.,weight space,69,pair-level only,"computed and varying across pairs, but across the 8 families its mean spans only 1.5e-03 of its own scale (gate: 1e-2), so it cannot carry a family-level correlation. This is the shared-base saturation of section 4f; see the tv_* task-vector twins for the informative version."
qmd_raw,Quotient Dist.,weight space,80,live,computed and used in the per-domain panels
coord_fraction,Coord. Share,weight space,0,not computable,"NaN by construction: both experts are fine-tunes of one pretrained checkpoint, so no permutation symmetry separates them and the aligning map is the identity -- there is no coordinate component to measure."
subspace_overlap,Subspace Overlap,weight space,69,pair-level only,"computed and varying across pairs, but across the 8 families its mean spans only 9.6e-03 of its own scale (gate: 1e-2), so it cannot carry a family-level correlation. This is the shared-base saturation of section 4f; see the tv_* task-vector twins for the informative version."
spectral_overcounting,Spectral Over-count,weight space,69,pair-level only,"computed and varying across pairs, but across the 8 families its mean spans only 1.5e-03 of its own scale (gate: 1e-2), so it cannot carry a family-level correlation. This is the shared-base saturation of section 4f; see the tv_* task-vector twins for the informative version."
geo_cka_mean,CKA Mean,representation,80,live,computed and used in the per-domain panels
geo_procrustes_mean,Procrustes Mean,representation,80,live,computed and used in the per-domain panels
geo_subspace_overlap_mean,Subspace Ov. Mean,representation,80,live,computed and used in the per-domain panels
geo_svcca_mean,SVCCA Mean,representation,80,live,computed and used in the per-domain panels
geo_cka_late_minus_early,CKA Late$-$Early,representation,80,live,computed and used in the per-domain panels
ret_identity_p_at_1,Identity P@1,retrieval,80,constant,"computed, but identical on every pair (sd = 0) -- it carries no information and cannot enter a correlation"
ret_procrustes_p_at_1,Procrustes P@1,retrieval,80,live,computed and used in the per-domain panels
ret_ridge_p_at_1,Ridge P@1,retrieval,80,live,computed and used in the per-domain panels
ret_gain_over_identity,Gain over Identity,retrieval,80,live,computed and used in the per-domain panels
grad_cosine,Grad. Cos. Sim.,gradient,80,live,computed and used in the per-domain panels
grad_l2,Grad. L2 Dist.,gradient,80,live,computed and used in the per-domain panels
grad_norm_ratio,Grad. Magn. Ratio,gradient,80,live,computed and used in the per-domain panels
grad_cosine_layer_min,Grad. Cos. Min Layer,gradient,80,live,computed and used in the per-domain panels
beh_js,JS Divergence,behaviour,69,live,computed and used in the per-domain panels
beh_logit_cosine,Logit Cos. Sim.,behaviour,69,live,computed and used in the per-domain panels
beh_topk_overlap,Top-$k$ Overlap,behaviour,69,live,computed and used in the per-domain panels
beh_rank_corr,Rank Corr.,behaviour,69,live,computed and used in the per-domain panels
beh_entropy_gap,Entropy Gap,behaviour,69,live,computed and used in the per-domain panels
tv_cosine,TV Cosine,"weight space
(task vectors)",80,live,computed and used in the per-domain panels
tv_norm_ratio,TV Norm Ratio,"weight space
(task vectors)",80,live,computed and used in the per-domain panels
tv_qmd_raw,TV Quotient Dist.,"weight space
(task vectors)",80,live,computed and used in the per-domain panels
tv_subspace_overlap,TV Subspace Ov.,"weight space
(task vectors)",60,live,computed and used in the per-domain panels
tv_spectral_overcounting,TV Spectral Over-count,"weight space
(task vectors)",60,live,computed and used in the per-domain panels