Amazon snapshot and notepad
Same four-row design as MIND, now on Amazon reviews with frozen product vectors. Fixing the earliest-product mean helps when there is no notepad. Once the notepad is on, a moving profile ranks slightly better than that snapshot. The notepad itself is still the large gain. This is one seed, validation only, from the earlier published screen — not the Modal rerun. Treat it as a warning that a stale shopping mean may be the wrong slow state, not as a multi-seed claim.
The notepad still helps a lot. The earliest-product snapshot is not the best slow state once memory is on.
NDCG@10 · seed 42
Published seed-42 screen
| Row | AUC | NDCG@10 |
|---|---|---|
| Moving history, no notepad | 0.51374 | 0.06788 |
| Snapshot, no notepad | 0.57726 | 0.10015 |
| Moving history + notepad | 0.79952 | 0.26700 |
| Snapshot + notepad | 0.79406 | 0.26309 |
Numbers from evaluation/FIXED_ANCHOR_CROSS_DATASET_SCREEN.md. Not rerun on Modal this week. One seed. Validation only. Coverage of the snapshot proxy is 58.4% of Amazon validation impressions.