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.
