Clarify pair-order and fixed-cutoff columns

README.md

@@ -5,7 +5,7 @@ pretty_name: Perch Benchmark Results
 
 # Perch benchmark results
 
-Bug and security results are separate. The primary tables compare models given the same saved Perch method context and one broad question per method (`perch-broad-v1`). Average precision (AP) measures ranking across all scores; the other metrics use an uncalibrated 0.5 cutoff.
+Bug and security results are separate. The primary tables compare models given the same saved Perch method context and one broad question per method (`perch-broad-v1`). Average precision (AP) measures ranking across all scores; precision, recall, and F1 use an uncalibrated 0.5 cutoff. Pair order is the share of eligible repairs where the before method scored above the after method.
 
 The public pairs and their per-method predictions are available here. Private pair-level data and predictions are not published. The public and private sets are disjoint by source repository across both domains.
 
@@ -17,19 +17,19 @@ The public pairs and their per-method predictions are available here. Private pa
 
 [Download public bug pairs](https://huggingface.co/datasets/perchscan/bug-pairs-public)
 
-| Model | AP | Precision@0.5 | Recall@0.5 | F1@0.5 | TP | FP | FN |
-| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
-| Hosted Jev 1.13.0 | 47.6% | 49.9% | 22.0% | 30.6% | 410 | 412 | 1451 |
-| Released JevK5 | 44.1% | 47.5% | 7.6% | 13.1% | 141 | 156 | 1720 |
-| Released Gemma 4 E4B + Jev-lite | 43.7% | 44.8% | 2.3% | 4.4% | 43 | 53 | 1818 |
+| Model | AP | Precision at 0.5 | Recall at 0.5 | F1 at 0.5 | TP | FP | FN | Pair order |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| Hosted Jev 1.13.0 | 47.6% | 49.9% | 22.0% | 30.6% | 410 | 412 | 1451 | 42.5% |
+| Released JevK5 | 44.1% | 47.5% | 7.6% | 13.1% | 141 | 156 | 1720 | 32.1% |
+| Released Gemma 4 E4B + Jev-lite | 43.7% | 44.8% | 2.3% | 4.4% | 43 | 53 | 1818 | 22.4% |
 
 ### Private — 498 pairs
 
-| Model | AP | Precision@0.5 | Recall@0.5 | F1@0.5 | TP | FP | FN |
-| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
-| Hosted Jev 1.13.0 | 48.6% | 50.7% | 24.1% | 32.6% | 102 | 99 | 322 |
-| Released JevK5 | 45.8% | 46.4% | 9.2% | 15.4% | 39 | 45 | 385 |
-| Released Gemma 4 E4B + Jev-lite | 45.2% | 60.0% | 3.5% | 6.7% | 15 | 10 | 409 |
+| Model | AP | Precision at 0.5 | Recall at 0.5 | F1 at 0.5 | TP | FP | FN | Pair order |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| Hosted Jev 1.13.0 | 48.6% | 50.7% | 24.1% | 32.6% | 102 | 99 | 322 | 43.4% |
+| Released JevK5 | 45.8% | 46.4% | 9.2% | 15.4% | 39 | 45 | 385 | 32.7% |
+| Released Gemma 4 E4B + Jev-lite | 45.2% | 60.0% | 3.5% | 6.7% | 15 | 10 | 409 | 22.7% |
 
 ## Security
 
@@ -37,25 +37,25 @@ The public pairs and their per-method predictions are available here. Private pa
 
 [Download public security pairs](https://huggingface.co/datasets/perchscan/security-pairs-public)
 
-| Model | AP | Precision@0.5 | Recall@0.5 | F1@0.5 | TP | FP | FN |
-| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
-| Hosted Jev 1.13.0 | 49.2% | 54.4% | 10.2% | 17.2% | 117 | 98 | 1025 |
-| Released JevK5 | 44.8% | 46.4% | 12.4% | 19.6% | 142 | 164 | 1000 |
-| Released Gemma 4 E4B + Jev-lite | 43.3% | 36.0% | 3.2% | 5.8% | 36 | 64 | 1106 |
+| Model | AP | Precision at 0.5 | Recall at 0.5 | F1 at 0.5 | TP | FP | FN | Pair order |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| Hosted Jev 1.13.0 | 49.2% | 54.4% | 10.2% | 17.2% | 117 | 98 | 1025 | 40.5% |
+| Released JevK5 | 44.8% | 46.4% | 12.4% | 19.6% | 142 | 164 | 1000 | 30.6% |
+| Released Gemma 4 E4B + Jev-lite | 43.3% | 36.0% | 3.2% | 5.8% | 36 | 64 | 1106 | 22.9% |
 
 ### Private — 439 pairs
 
-| Model | AP | Precision@0.5 | Recall@0.5 | F1@0.5 | TP | FP | FN |
-| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
-| Hosted Jev 1.13.0 | 48.9% | 52.6% | 2.5% | 4.8% | 10 | 9 | 388 |
-| Released JevK5 | 47.4% | 45.0% | 4.5% | 8.2% | 18 | 22 | 380 |
-| Released Gemma 4 E4B + Jev-lite | 47.3% | 43.8% | 1.8% | 3.4% | 7 | 9 | 391 |
+| Model | AP | Precision at 0.5 | Recall at 0.5 | F1 at 0.5 | TP | FP | FN | Pair order |
+| --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
+| Hosted Jev 1.13.0 | 48.9% | 52.6% | 2.5% | 4.8% | 10 | 9 | 388 | 36.2% |
+| Released JevK5 | 47.4% | 45.0% | 4.5% | 8.2% | 18 | 22 | 380 | 37.9% |
+| Released Gemma 4 E4B + Jev-lite | 47.3% | 43.8% | 1.8% | 3.4% | 7 | 9 | 391 | 29.4% |
 
 ## Different input protocols
 
 These released models received their native decision inputs, so their scores are reported separately from the prompt-matched tables above.
 
-| Domain | Track | Model | Protocol | AP | F1@0.5 | TP | FP | FN |
+| Domain | Track | Model | Protocol | AP | F1 at 0.5 | TP | FP | FN |
 | --- | --- | --- | --- | ---: | ---: | ---: | ---: | ---: |
 | Bug | Public | Released CLM-v0.1-8B | `clm-native-choice-6144-v1` | 44.0% | 21.2% | 258 | 317 | 1603 |
 | Bug | Private | Released CLM-v0.1-8B | `clm-native-choice-6144-v1` | 45.2% | 25.1% | 74 | 92 | 350 |