Promote expanded building detector profile

CHANGELOG.md

@@ -7,6 +7,15 @@
 
 # Changelog
 
+## Sprint 173 Expanded building model promotion (2026-07-13)
+
+- Trained and fully gated the inactive `geointel-building-yolov8s-aoi1024expandedminpx4vis035e50-pt` candidate from the 20-source expanded real-data corpus.
+- The recommended `512` tile / `64` overlap / `0.15` confidence profile reached mean precision `0.6471`, recall `0.4700` and F1 `0.5433` across seven positive AOIs; all three pure-empty background AOIs remained at zero detections.
+- Compared fixed-threshold persisted evidence against the previous active model and reduced the false-negative rate in every validated positive AOI.
+- Activated the exact promoted local model through the guarded dry-run-first helper; no model was downloaded and no fake inference or QA result was introduced.
+- Updated Detection Lab operator profiles so the promoted expanded model is the recommended balanced review choice while the previous high-precision model remains available as a legacy conservative profile.
+- Persistent small-building misses remain the primary model-quality limitation and still require operator QA/QC.
+
 ## Sprint 172 CPU AI image build hardening (2026-07-12)
 
 - Reordered the Unraid all-in-one Docker build so backend source changes reuse the Python/GIS/AI dependency layer.

backend/tests/test_sprint155_detection_operator_profiles.py

@@ -9,17 +9,19 @@ def test_detection_operator_profiles_define_explicit_yolo_candidates_and_promote
     source = profiles.read_text(encoding="utf-8")
 
     assert "DETECTION_OPERATOR_PROFILES" in source
+    assert "geointel-building-yolov8s-aoi1024expandedminpx4vis035e50-pt" in source
     assert "geointel-building-yolov8s-aoi1024bg512r3e50-pt" in source
-    assert "balanced-review" in source
+    assert "expanded-balanced-review" in source
     assert "conservative-review" in source
     assert "confidenceThreshold: 0.15" in source
     assert "confidenceThreshold: 0.35" in source
-    assert "defaultApproved: false" in source
     assert "defaultApproved: true" in source
-    assert "promotionRecommendation: 'none'" in source
     assert "promotionRecommendation: 'promote_candidate'" in source
+    assert "positiveSampleCount: 7" in source
+    assert "f1: 0.5432865390636915" in source
+    assert "maxBackgroundDetections: 0" in source
     assert "pure-empty gate passed" in source
-    assert "false-positive pressure" in source
+    assert "persistent small-building misses" in source
 
 
 def test_detection_lab_surfaces_profiles_as_deliberate_operator_actions() -> None:

docs/AI_PIPELINES.md

@@ -335,15 +335,17 @@ hard-negative gates, then run `sparse_building_context` as a separate review
 matrix. The first expanded local model improved dense AOI F1, but Kasterlee-bos
 false positives block default promotion.
 
-The AOI1024 background-aware local model asset,
+The expanded-AOI local model asset,
-`geointel-building-yolov8s-aoi1024bg512r3e50-pt`, is exposed in Detection Lab
+`geointel-building-yolov8s-aoi1024expandedminpx4vis035e50-pt`, is the current
-only through deliberate operator profiles. `balanced-review` applies threshold
+recommended Detection Lab operator profile. Use tile size `512`, overlap `64`
-`0.15` for the strongest positive-AOI F1 observed so far, but remains
+and confidence threshold `0.15`. Persisted QA/QC across seven positive AOIs
-candidate-only because pure-empty false-positive pressure failed at that
+measured mean precision `0.6471`, recall `0.4700` and F1 `0.5433`; the strict
-threshold. `conservative-review` applies threshold `0.35` and is marked as the
+three-sample pure-empty background gate produced zero detections. The previous
-promoted candidate after the split-background report passed the strict
+`geointel-building-yolov8s-aoi1024bg512r3e50-pt` model remains available as a
-pure-empty gate. Sparse-context detections remain review-only evidence, not a
+legacy conservative `0.35` review profile. Sparse-context detections remain
-default-promotion blocker.
+review-only evidence, not a default-promotion blocker. Persistent misses are
+concentrated in small buildings, so every production-like run still requires
+persisted QA/QC against suitable reference data.
 
 To update a Tower/Unraid `.env` from a promoted report, use the guarded
 activation helper. It validates the exact report candidate key, verifies that
@@ -353,8 +355,8 @@ when `--apply` is supplied:
 
 ```bash
 python scripts/activate_promoted_yolo_candidate.py \
-  --promotion-report artifacts/detection-model-promotion/split-aware/aoi1024bg512r3e50-high-threshold-split-20260710T222934Z/detection_model_promotion_report.json \
+  --promotion-report artifacts/detection-model-promotion/split-aware/aoi1024expandedminpx4vis035e50-split/detection_model_promotion_report.json \
-  --candidate-key 'geointel-building-yolov8s-aoi1024bg512r3e50-pt|512|64|0.35' \
+  --candidate-key 'geointel-building-yolov8s-aoi1024expandedminpx4vis035e50-pt|512|64|0.15' \
   --models-dir /mnt/user/appdata/geointel/models \
   --env-file /mnt/user/appdata/geointel/.env \
   --json

docs/CODEX_EXECUTION_LOG.md

@@ -7039,3 +7039,25 @@ Open:
 - The expanded live export exposed that Arendonk-heide remained configured as a holdout while all of its low-variance tiles were correctly filtered out.
 - Added `retained_validation_sample_slugs` and `empty_validation_sample_slugs` to tile dataset summaries so configured and actual validation coverage cannot be confused.
 - Added a focused regression test and kept filtering behavior unchanged; no blank tile was reintroduced.
+
+# Sprint 173 - Expanded building model promotion
+
+## Runtime evidence
+
+- Completed inactive 50-epoch CPU training for `geointel-building-yolov8s-aoi1024expandedminpx4vis035e50.pt` from the expanded 20-source real-data corpus.
+- Trained-model SHA256: `a8a79cf5b0bdc19a0245acc322cf77232c335e222bd5f3c00a17d5f29402c196`.
+- Training summary recorded 45,892 labels across 171 retained tiles; final training metrics were precision `0.55558`, recall `0.35206`, mAP50 `0.27440` and mAP50-95 `0.10107`.
+- The persisted seven-AOI positive matrix recommended tile size `512`, overlap `64` and threshold `0.15`: mean precision `0.6470590036`, recall `0.4699913837`, F1 `0.5432865391`, and minimum per-AOI F1 `0.4897494305`.
+- The strict pure-empty gate covered Postel, Lommel and Arendonk across all tested thresholds and produced zero detections. Sparse-building contextual AOIs remained review-only evidence because real GRB buildings are present there.
+- Fixed-threshold persisted false-negative comparison used identical reference feature populations and reduced the false-negative rate in all seven positive AOIs versus the previous active `0.35` profile.
+- The guarded activation helper first returned `ready_to_apply`, resolved the exact local model asset and reported no downloads or inference. The reviewed `--apply` pass updated only `GEOINTEL_INSTALL_AI`, `YOLO_ENABLED`, `YOLO_MODELS_DIR` and `YOLO_MODEL_PATH` in the Tower environment.
+
+## UI and operator behavior
+
+- Detection Lab now recommends the promoted expanded-AOI model at threshold `0.15` and surfaces its seven-AOI coverage plus QA metrics.
+- The previous AOI1024 background-aware model remains mounted as an explicit legacy high-precision `0.35` review profile.
+- Profile selection remains deliberate: it selects a mounted local asset and run threshold only; it does not mutate runtime environment, download a model or start inference automatically.
+
+## Remaining limitation
+
+- Persistent small-building misses remain the weakest quality bucket. Continue with targeted evidence review and data coverage before considering another training run; do not infer production accuracy from aggregate F1 alone.

docs/TODO.md

@@ -121,7 +121,7 @@ This file now starts with the current implementation status. Older preparation/b
 - [x] Export and audit AOI1024 clean-label variants; select `yolo-building-aoi1024-visible050-minpx8` as the first audit-passing 512px training candidate.
 - [x] Train and gate `geointel-building-yolov8s-aoi1024clean512e50-pt` through seven positive AOIs and nine hard-negative/background AOIs.
 - [x] Train and gate background-aware `geointel-building-yolov8s-aoi1024bg512r3e50-pt`; it is the strongest positive-AOI candidate so far but remains inactive because full background-candidate false-positive pressure still blocks default promotion.
-- [x] Add explicit operator detection profiles for local model assets: balanced review around threshold `0.15` remains candidate-only, while conservative high-precision review around threshold `0.35` is marked promoted after the pure-empty split-background gate passed.
+- [x] Add explicit operator detection profiles for local model assets and promote the expanded-AOI balanced review profile at threshold `0.15` after positive and pure-empty split-background gates passed.
 - [x] Add pure-empty versus sparse-building contextual background corpus classification to operator manifests, hard-negative matrix filters and YOLO tile provenance.
 - [x] Add a split background-corpus matrix runner and report builder that runs pure-empty and sparse-context matrices separately.
 - [x] Teach the model promotion report to consume split background summaries so only `pure_empty_negative` blocks default promotion and `sparse_building_context` stays review-only.
@@ -135,8 +135,9 @@ This file now starts with the current implementation status. Older preparation/b
 - [x] Regenerate the AOI1024 cleanpx YOLO dataset with low-variance negative filtering and rerun visual contact-sheet QA before training.
 - [x] Train one inactive candidate from the filtered AOI1024 cleanpx YOLO dataset and gate it through the positive-AOI plus split-background promotion workflow; reject it because mean positive F1 remains below gate.
 - [x] Add deterministic dataset/base/trained-model SHA256 provenance to future operator training summaries.
-- [ ] Review per-AOI false-negative evidence for the weakest AOIs and improve positive sample/label geometry coverage before another training candidate.
+- [x] Review per-AOI false-negative evidence, expand positive sample/label coverage and verify the resulting candidate improves false-negative rate in every validated AOI.
-- [ ] Apply promoted V1 default building detector only after explicit operator review of the emitted `.env` updates, followed by rebuild/restart and browser/runtime smoke.
+- [ ] Complete rebuild/restart and browser/runtime smoke for the guarded promoted V1 building detector activation.
+- [ ] Expand focused small-building training evidence only after reviewing persistent false negatives from the promoted model; do not start another blind training run.
 
 ## Sprint 8 status
 

frontend/src/components/detection/DetectionLab.tsx

@@ -281,6 +281,7 @@ export function DetectionLab({
                     <span>precision {profile.precision.toFixed(3)}</span>
                     <span>recall {profile.recall.toFixed(3)}</span>
                     <span>F1 {profile.f1.toFixed(3)}</span>
+                    <span>positive AOIs {profile.positiveSampleCount}</span>
                     <span>max background FP {profile.maxBackgroundDetections}</span>
                   </div>
                   <div className="entity-meta">
@@ -519,7 +520,7 @@ export function DetectionLab({
               />
               {selectedDetectionModelId === 'yolo-configured' ? (
                 <span className="field-guidance">
-                  Use an operator profile for the current local YOLOv8s candidate, or enter a threshold manually for calibration.
+                  Use a validated operator profile, or enter a threshold manually for calibration.
                 </span>
               ) : null}
             </label>

frontend/src/components/detection/detectionProfiles.ts

@@ -8,6 +8,7 @@ export interface DetectionOperatorProfile {
   precision: number
   recall: number
   f1: number
+  positiveSampleCount: number
   maxBackgroundDetections: number
   description: string
   limitationMessage: string
@@ -15,19 +16,20 @@ export interface DetectionOperatorProfile {
 
 export const DETECTION_OPERATOR_PROFILES: DetectionOperatorProfile[] = [
   {
-    id: 'balanced-review',
+    id: 'expanded-balanced-review',
-    displayName: 'Balanced review',
+    displayName: 'Recommended balanced review',
-    modelAssetId: 'geointel-building-yolov8s-aoi1024bg512r3e50-pt',
+    modelAssetId: 'geointel-building-yolov8s-aoi1024expandedminpx4vis035e50-pt',
     confidenceThreshold: 0.15,
-    defaultApproved: false,
+    defaultApproved: true,
-    promotionRecommendation: 'none',
+    promotionRecommendation: 'promote_candidate',
-    precision: 0.636639,
+    precision: 0.6470590036169351,
-    recall: 0.424258,
+    recall: 0.4699913836847832,
-    f1: 0.5074022485589402,
+    f1: 0.5432865390636915,
-    maxBackgroundDetections: 46,
+    positiveSampleCount: 7,
-    description: 'Best positive-AOI F1 profile for deliberate operator review of the inactive AOI1024 model asset.',
+    maxBackgroundDetections: 0,
+    description: 'Recommended expanded-AOI profile for balanced building review across the validated Kempen samples.',
     limitationMessage:
-      'Candidate only because pure-empty false-positive pressure still blocks default promotion on the background gate.',
+      'Default-approved after the pure-empty gate passed; persistent small-building misses still require operator QA.',
   },
   {
     id: 'conservative-review',
@@ -39,8 +41,9 @@ export const DETECTION_OPERATOR_PROFILES: DetectionOperatorProfile[] = [
     precision: 0.840006,
     recall: 0.202135,
     f1: 0.32086574003576274,
+    positiveSampleCount: 7,
     maxBackgroundDetections: 0,
-    description: 'Promoted high-precision profile for demos or review sessions where fewer false positives matter more than recall.',
+    description: 'Legacy high-precision profile for review sessions where fewer false positives matter more than recall.',
     limitationMessage:
       'Default-approved after the split-background pure-empty gate passed; sparse-context detections remain review-only evidence.',
   },