| # OnePass-7B visual comparison |
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| ## Dataset-level diagnostics |
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| | Method | Mean sample IoU | IoU < 0.5 | IoU >= 0.75 | |
| |---|---:|---:|---:| |
| | Qwen-init | 0.586179 | 27.88% | 29.92% | |
| | STAMP-LoRA-init | 0.585672 | 28.43% | 30.60% | |
| | SEG-grounding | 0.589904 | 27.12% | 31.66% | |
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| ## Pairwise changes |
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| | Comparison | Mean delta | Improved >0.01 | Regressed >0.01 | Nearly unchanged | |
| |---|---:|---:|---:|---:| |
| | STAMP-LoRA-init - Qwen-init | -0.000507 | 35.48% | 33.97% | 30.56% | |
| | SEG-grounding - STAMP-LoRA-init | +0.004233 | 29.06% | 19.71% | 51.23% | |
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| ## Selected qualitative cases |
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| | Index | Category | Qwen-init | STAMP-LoRA-init | SEG-grounding | |
| |---:|---|---:|---:|---:| |
| | 118 | all_methods_fail | 0.0000 | 0.0000 | 0.0000 | |
| | 121 | all_methods_fail | 0.0000 | 0.4044 | 0.4314 | |
| | 3163 | stamp_lora_gain | 0.0004 | 0.6621 | 0.0000 | |
| | 1045 | stamp_lora_gain | 0.8401 | 0.8375 | 0.8371 | |
| | 808 | seg_grounding_gain | 0.0000 | 0.0000 | 0.0000 | |
| | 3822 | seg_grounding_gain | 0.0059 | 0.0049 | 0.0186 | |
| | 1641 | seg_grounding_regression | 0.0000 | 0.0000 | 0.0000 | |
| | 2162 | seg_grounding_regression | 0.7193 | 0.8151 | 0.6546 | |
| | 105 | largest_method_disagreement | 0.0011 | 0.0007 | 0.0007 | |
| | 1021 | largest_method_disagreement | 0.8497 | 0.8622 | 0.8625 | |
| | 3778 | all_methods_succeed | 0.9501 | 0.9503 | 0.9357 | |
| | 754 | all_methods_succeed | 0.8923 | 0.8976 | 0.8803 | |
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| Colors in prediction panels: green=TP, red=FP, blue=FN. |
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| The selected cases are post-hoc qualitative diagnostics based on GT IoU; selection is not part of model inference. |
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