| # Where the model shines — hard cases handled well |
|
|
| The flip side of [`KNOWN_LIMITATIONS.md`](KNOWN_LIMITATIONS.md): difficult inputs |
| the model gets **right**. These are exactly the cases a plain dictionary / regex |
| or a non-OCR-augmented model tends to miss. |
|
|
| All inputs are synthetic (fictional names). Outputs are the model's **actual** |
| predictions (quantized ONNX, recall-first PER threshold 0.2). Reproduce with |
| [`strong_cases.py`](strong_cases.py). |
|
|
| ## OCR-garbled names (the variant's headline strength) |
|
|
| Names corrupted by optical character recognition — still recognised: |
|
|
| | Input | Behind the garble | Model | |
| |---|---|---| |
| | `Pozwany Damian Zotadek wniósł odpowiedź na pozew.` | *Damian Żołądek* (lost diacritics) | `PER 'Damian Zotadek'` | |
| | `Z powództwa Jiga Bękowiki przeciwko spółce.` | *Jaga Bętkowski* (heavy garble) | `PER 'Jiga Bękowiki'` | |
| | `Pełnomocnik: Ptek Gostoiski, adwokat.` | *Patryk Gostomski* (signature line) | `PER 'Ptek Gostoiski'` | |
|
|
| ## Polish inflection (declension) |
|
|
| Polish surnames change form by grammatical case; the model tags the full inflected |
| surface, not just the nominative: |
|
|
| | Input | Case | Model | |
| |---|---|---| |
| | `Pozew skierowano przeciwko Jerzemu Sekule.` | dative | `PER 'Jerzemu Sekule'` | |
| | `Sprawa dotyczy akt Wojciecha Michalika.` | genitive | `PER 'Wojciecha Michalika'` | |
|
|
| ## Tricky surface forms |
|
|
| | Input | Why it's hard | Model | |
| |---|---|---| |
| | `Powódka Anna Nowak-Kowalska złożyła wniosek.` | hyphenated double surname → one span | `PER 'Anna Nowak-Kowalska'` | |
| | `Stawiła się ALEKSANDRA ŚWIDERSKA, pełnomocnik.` | ALL-CAPS header/signature style | `PER 'ALEKSANDRA ŚWIDERSKA'` | |
| | `Z poważaniem,` / `Iga Mełech` / `radca prawny` | short female first + rare surname in a low-cue signature | `PER 'Iga Mełech'` | |
|
|
| ## Multiple types + public/private distinction |
|
|
| ``` |
| Jan Kowalski, zam. ul. Słoneczna 5 w Krakowie, PESEL 02070803628. |
| PER 'Jan Kowalski' |
| LOC 'ul. Słoneczna 5' ← private address (masked) |
| LOC_PUB 'Krakowie' ← public city (kept by default) |
| ID '02070803628' ← national id (PESEL) |
| ``` |
|
|
| The model keeps the public place (`Krakowie`) visible while masking the private |
| street address (`ul. Słoneczna 5`) — so the legal context survives anonymisation. |
|
|
