| # STATISTICS - eval split (900 records) |
|
|
| ### By source (tier1_source) |
| |
| | key | count | |
| |---|---| |
| | BOL | 318 | |
| | catalog | 582 | |
| |
| ### By HS4 |
| |
| | key | count | |
| |---|---| |
| | 2804 | 24 | |
| | 2805 | 4 | |
| | 2826 | 16 | |
| | 2844 | 1 | |
| | 2850 | 28 | |
| | 3707 | 29 | |
| | 3818 | 57 | |
| | 7104 | 5 | |
| | 7320 | 1 | |
| | 7326 | 1 | |
| | 7616 | 8 | |
| | 8443 | 1 | |
| | 8471 | 16 | |
| | 8473 | 68 | |
| | 8486 | 81 | |
| | 8504 | 81 | |
| | 8513 | 2 | |
| | 8514 | 22 | |
| | 8516 | 1 | |
| | 8517 | 11 | |
| | 8518 | 1 | |
| | 8523 | 34 | |
| | 8524 | 3 | |
| | 8526 | 2 | |
| | 8536 | 38 | |
| | 8538 | 3 | |
| | 8541 | 81 | |
| | 8542 | 81 | |
| | 8543 | 7 | |
| | 8544 | 12 | |
| | 9001 | 2 | |
| | 9013 | 1 | |
| | 9025 | 7 | |
| | 9027 | 6 | |
| | 9029 | 1 | |
| | 9030 | 81 | |
| | 9031 | 81 | |
| | 9405 | 2 | |
| |
| ### By confidence tier |
| |
| | key | count | |
| |---|---| |
| | high | 525 | |
| | low | 3 | |
| | medium | 372 | |
| |
| ### By segment |
| |
| | key | count | |
| |---|---| |
| | material | 164 | |
| | equipment | 113 | |
| | metrology | 176 | |
| | component | 413 | |
| | end_product | 34 | |
|
|
| ### By difficulty tag |
|
|
| 718 of 900 eval records (79.8 %) sit on at least one confusable HS boundary; |
| 84 carry more than one tag. A record is counted under every tag it carries, so |
| the per-tag counts below sum to more than 718. Tags come in two groups |
| (within-family sibling splits and cross-family frontiers); see |
| `construction/configs/boundary_tags.yaml` for the deciding criteria, and the |
| `boundary_note` field on each record for the human-readable rationale. |
|
|
| **Group A — within-family sibling splits** |
|
|
| | tag | count | |
| |---|---| |
| | 8541_siblings | 81 | |
| | 8542_ic_function | 81 | |
| | 8486_process_stage | 81 | |
| | 8504_power_splits | 81 | |
| | 9030_measurement_splits | 81 | |
| | 9031_inspection_splits | 81 | |
| | 8536_connection_splits | 38 | |
| | 3707_photochemical | 29 | |
| | 2804_gas_purity | 24 | |
| | 8471_adp_splits | 16 | |
| | 9027_analysis_splits | 6 | |
|
|
| **Group B — cross-family frontiers** |
|
|
| | tag | count | |
| |---|---| |
| | 8541_vs_8542 | 55 | |
| | storage_boundary | 45 | |
| | furnace_boundary | 20 | |
| | doped_vs_undoped | 18 | |
| | crystal_substrate_boundary | 16 | |
| | sensor_boundary | 15 | |
| | parts_attribution | 13 | |
| | amplifier_boundary | 7 | |
| | cable_vs_connector | 6 | |
| | machine_with_function | 4 | |
| | led_device_vs_luminaire | 3 | |
| | display_module_boundary | 2 | |
| | populated_board_boundary | 0 | |
| | process_vs_metrology | 0 | |
|
|
| Two Group-B frontiers (`populated_board_boundary`, `process_vs_metrology`) |
| have no eval records; both appear in the train split. |
|
|
