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artifacts: add EfficientNet and ResNet50 confusion matrices and training history plots
Priya Monisha91a21f7 -
results: Section 5 complete — all 4 CNNs trained, ResNet50 best at 65.5%
Priya MonishaSection 5 final results: - VGG16: 59.5% (architecture ceiling) - MobileNetV2: 56.7% (backbone lr=1e-5 too conservative) - EfficientNetB0: 58.9% (backbone lr=1e-5 too conservative) - ResNet50: 65.5% test / 63.6% val (data volume bottleneck, 1464 params/img) Pipeline improvements committed alongside results: - dataset.py: create_stratified_split() — random stratified resplit, no sequential bias - loader.py: quality gates 48px→80px, 2% area; compute_overlap_ratio; check_person_overlap - model_factory.py: unfreeze_efficientnet_phase2() added - 01_data_acquisition.py: chair person-overlap filter, MAX_ITER 80k→150k Next: Section 6 YOLOv8 detection training1a28594