Add analysis (Macro F1: 0.8709)

.gitattributes

@@ -34,3 +34,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 analysis/confusion_matrix.png filter=lfs diff=lfs merge=lfs -text
+analysis/length_bias.png filter=lfs diff=lfs merge=lfs -text

analysis/classification_report.txt

@@ -0,0 +1,13 @@
+Model: UnixCoder-512
+Macro F1: 0.8709
+
+              precision    recall  f1-score   support
+
+       Human     0.9802    0.9713    0.9757    107885
+      AI-Gen     0.8445    0.8749    0.8594     46770
+      Hybrid     0.8109    0.8231    0.8169     19006
+ Adversarial     0.8480    0.8159    0.8316     26339
+
+    accuracy                         0.9142    200000
+   macro avg     0.8709    0.8713    0.8709    200000
+weighted avg     0.9149    0.9142    0.9145    200000