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feat(phase2): Extraction layout-aware multi-colonnes — 322 fuites → 0, -103 FP

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Phase 2 de l'amélioration qualité anonymisation :

1. Extraction multi-colonnes (PyMuPDF layout-aware) :
   - Nouvelle fonction _extract_page_layout_aware() détecte les layouts
     sidebar+corps (typiques des CRH/CRO hospitaliers)
   - Remplace pdfplumber comme extraction primaire (PyMuPDF blocks)
   - Élimine l'entrelacement de texte entre sidebar et corps médical
   - pdfplumber conservé pour les tables et comme fallback

2. Masquage FINESS multiline :
   - Détection "N° Finess\n[...]\n640000162" (label et numéro séparés)
   - Propagation globale du numéro FINESS sur toutes les pages
   - Gestion du format *640000162* (avec astérisques Trackare)

3. Masquage URLs hospitalières (www.ch-xxx.fr)

4. Nettoyage crochets doubles [[PLACEHOLDER]] → [PLACEHOLDER]

Résultats non-régression (30 fichiers audit) :
- Fuites : 322 → 0 (-100%)
- Faux positifs : 113 → 10 (-91%)
- 0 régression fonctionnelle
- OGC 1-59 : 0 fuite soignant, 0 FINESS, 0 lieu de naissance

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Domi31tls
2026-03-06 18:19:08 +01:00
parent bc2fe667a0
commit e967a67052
55 changed files with 38506 additions and 18343 deletions
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7
regression_tests/baseline/cro 478_23161697.audit.jsonl
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@@ -1,15 +1,14 @@
{"page": 0, "kind": "NOM", "original": "BLANGIS", "placeholder": "[NOM]", "bbox_hint": null}
{"page": 0, "kind": "RPPS", "original": "10100981090", "placeholder": "[RPPS]", "bbox_hint": null}
{"page": 0, "kind": "TEL", "original": "05 59 44 35 12", "placeholder": "[TEL]", "bbox_hint": null}
{"page": 0, "kind": "DATE_NAISSANCE", "original": "né le 13/12/1943", "placeholder": "[DATE_NAISSANCE]", "bbox_hint": null}
{"page": 0, "kind": "RPPS", "original": "10002828365", "placeholder": "[RPPS]", "bbox_hint": null}
{"page": 0, "kind": "TEL", "original": "05 59 44 40 84", "placeholder": "[TEL]", "bbox_hint": null}
{"page": 0, "kind": "DATE_NAISSANCE", "original": "né le 13/12/1943", "placeholder": "[DATE_NAISSANCE]", "bbox_hint": null}
{"page": 0, "kind": "RPPS", "original": "10107546912", "placeholder": "[RPPS]", "bbox_hint": null}
{"page": 0, "kind": "NOM", "original": "Colette BRANA", "placeholder": "[NOM]", "bbox_hint": null}
{"page": 0, "kind": "TEL", "original": "05 59 44 40 59", "placeholder": "[TEL]", "bbox_hint": null}
{"page": 0, "kind": "RPPS", "original": "10102402095", "placeholder": "[RPPS]", "bbox_hint": null}
{"page": 0, "kind": "AGE", "original": "Patient de 79 ans", "placeholder": "[AGE]", "bbox_hint": null}
{"page": 0, "kind": "TEL", "original": "05 59 44 35 17", "placeholder": "[TEL]", "bbox_hint": null}
{"page": 0, "kind": "NOM", "original": "Colette BRANA", "placeholder": "[NOM]", "bbox_hint": null}
{"page": 0, "kind": "AGE", "original": "Patient de 79 ans", "placeholder": "[AGE]", "bbox_hint": null}
{"page": 0, "kind": "RPPS", "original": "10004431168", "placeholder": "[RPPS]", "bbox_hint": null}
{"page": 0, "kind": "TEL", "original": "05 59 44 31 35", "placeholder": "[TEL]", "bbox_hint": null}
{"page": 0, "kind": "RPPS", "original": "10101988433", "placeholder": "[RPPS]", "bbox_hint": null}