In-block (same-level) directed edges
Layer 2 · PCFG toy 4L d_model=448 / pcfg · matryoshka_hook_resid_post_L2 · 1,792 latents in 8 blocks · 598,000 tokens over 2000 docs · edge: reverse coverage ≥ 0.5, both endpoints fire ≥ 20
Parent→child within a block (asymmetric containment); co-extensive pairs are reported as duplicates (renames/splits), never edges.
Block B0 (224 features)
- 148 directed edges, 5 duplicate pairs, 148 survive PMI>0; PolyFrac 18%, Gini 0.967.
- S_res: 3/139 edges are genuine refinements (0 children untestable).
- In-block superparents: 1 (e.g. F13 feature 13: 82 children, fires 39%).
| parent → child |
R |
PMI |
parent label |
child label |
| 135 → 57 |
1.00 |
1.37 |
feature 135 |
feature 57 |
| 68 → 222 |
1.00 |
1.50 |
feature 68 |
feature 222 |
| 29 → 176 |
1.00 |
1.45 |
feature 29 |
feature 176 |
| 29 → 164 |
0.99 |
1.45 |
feature 29 |
feature 164 |
| 80 → 222 |
0.99 |
1.41 |
feature 80 |
feature 222 |
| 135 → 12 |
0.99 |
1.36 |
feature 135 |
feature 12 |
| 176 → 164 |
0.99 |
2.43 |
feature 176 |
feature 164 |
| 13 → 220 |
0.98 |
0.93 |
feature 13 |
feature 220 |
Duplicate pairs (rename/split candidates): 13≈50 (feature 13); 29≈68 (feature 29); 29≈80 (feature 29); 50≈220 (feature 50); 68≈80 (feature 68)
Block B1 (224 features)
- 2 directed edges, 0 duplicate pairs, 2 survive PMI>0; PolyFrac 100%, Gini 0.991.
- S_res: 1/2 edges are genuine refinements (0 children untestable).
| parent → child |
R |
PMI |
parent label |
child label |
| 422 → 342 |
0.63 |
1.81 |
feature 422 |
feature 342 |
| 306 → 342 |
0.56 |
1.81 |
feature 306 |
feature 342 |
Block B2 (224 features)
- 1 directed edges, 0 duplicate pairs, 1 survive PMI>0; PolyFrac 0%, Gini 0.996.
- S_res: 1/1 edges are genuine refinements (0 children untestable).
| parent → child |
R |
PMI |
parent label |
child label |
| 509 → 600 |
0.68 |
2.32 |
feature 509 |
feature 600 |
Block B3 (224 features)
- 0 directed edges, 0 duplicate pairs, 0 survive PMI>0; PolyFrac 0%, Gini 0.000.
Block B4 (224 features)
- 0 directed edges, 0 duplicate pairs, 0 survive PMI>0; PolyFrac 0%, Gini 0.000.
Block B5 (224 features)
- 0 directed edges, 0 duplicate pairs, 0 survive PMI>0; PolyFrac 0%, Gini 0.000.
Block B6 (224 features)
- 0 directed edges, 0 duplicate pairs, 0 survive PMI>0; PolyFrac 0%, Gini 0.000.
Block B7 (224 features)
- 0 directed edges, 0 duplicate pairs, 0 survive PMI>0; PolyFrac 0%, Gini 0.000.