# PAct Instance Axis v05

Generated: `2026-05-16T04:14:41+00:00`
Portal: `http://106.14.105.96:28080/experiments/pact-transporter-instance-axis-v05-20260516/index.html`

v05 tests per-instance local mechanism axes for same-label multi-part objects.

| mode | F1 | precision | recall | count err | axis err |
|---|---:|---:|---:|---:|---:|
| `raw` | 0.0303 | 0.0303 | 0.0303 | 10.6364 | 81.87 |
| `axis_knn` | 0.7048 | 0.7081 | 0.7020 | 0.0909 | 20.50 |
| `root_frame` | 0.9079 | 0.9096 | 0.9066 | 0.0909 | 3.82 |
| `instance_axis` | 0.9672 | 0.9672 | 0.9672 | 0.0000 | 4.73 |

## Interpretation

The remaining hard cases need an instance-conditioned articulation head: semantic labels alone are insufficient when several parts share a name but use different local mechanisms.