Lab notes
Experiments
What we ran, in plain words, with the numbers behind each call.
MIND snapshot and notepad
On MIND-small news ranking we freeze each user's first training clicks as a stable snapshot, then let a small notepad of fast weights adapt on later clicks. Across three model seeds, snapshot plus notepad beat a moving history mean. Validation only. The held-out test split stayed sealed.
OpenAmazon snapshot and notepad
On Amazon reviews we used the same four-row design with frozen product embeddings. The notepad still added a large ranking gain. A moving profile beat the earliest-product snapshot when memory was on. One seed only. A stale shopping snapshot may be the wrong slow state for this task.
Open