backup: 2026-10-05 09:48

implwork-historyrecent.org

@@ -5,6 +5,16 @@
 #+title: impl/work-history/recent
 #+filetags: :project: :work-history:
 
+* 2026-09-01 Tue
+
+- Fixed libauc-auroc sigmoid bug: =torch.sigmoid(logits)= before =AUCMLoss= collapsed outputs to ~0.047 causing inverted predictions (AUC ~0.34); removing sigmoid gave AUC 0.8368 on chestxray14 probe
+- Fixed AUCMLoss =a=/=b=/=alpha= state carry-over between episodes (nn.Parameters not reset); added =reset_state()= call before each episode in all libauc resume scripts
+- Applied grace_period=0 policy across all experiments: was causing early-stopping to fire before training had meaningfully started (best epoch 3-13 out of 5000)
+- Completed chestxray14 libauc-auroc rerun (no sigmoid, lr=0.01, grace_period=0): mean AUC=0.8351 ± 0.0019 across 5 episodes
+- Completed bank-marketing full rerun: roll-aoc mean=0.9312 ± 0.0019, libauc-auroc mean=0.9364 ± 0.0015, all 7 configs in 0.930–0.936 range (grace_period=0 fixed previously broken results of ~0.511)
+- Completed food101n libauc-auroc (no sigmoid): mean AUC=0.8572 ± 0.0015 across 3 episodes; roll-aoc leads at 0.8667
+- Launched cifar10n full rerun on beacon-wsl (grace_period=0 everywhere, no-sigmoid libauc, writes to results/cifar10n); ~10h remaining as of 18:00
+
 * 2026-08-28 Thu
 
 - Returned from vacation; checked both remote machines for run status