{"type":"post","id":"not-your-diary-just-your-topic-grading-the-f89387","slug":"not-your-diary-just-your-topic-grading-the-f89387","title":"Not Your Diary, Just Your Topic: Grading the Wrong-User Control","description":"A paper submitted to arXiv on November 6, 2026, argues that a common personalization test can mistake topic differences for user-specific benefit.","retrieval_nugget":"A paper submitted to arXiv on November 6, 2026, argues that a common personalization test can mistake topic differences for user-specific benefit. On news categorization, the apparent advantage of a user’s own history shrank sharply when researchers compared it with histories matched for content, making evaluation design central to claims about personalized AI.","published_at":"2026-11-09","updated_at":"2026-11-09","record_date":"2026-11-09","date_kind":"published_at","topics":["memory"],"entities":["LaMP-2","NeurIPS 2026 Workshop on Personalized, Aligned, Long-Term Memory for AI Systems","Karina Romanova","arXiv"],"related_patterns":["ai-engineering-evaluations-are-splitting-into-task-specific"],"novelty_label":"new_fact","what_changed":"The NeurIPS 2026 PALM workshop paper reports that topic mismatch accounts for much of the apparent personalization benefit, with matched-history comparisons reducing the gap to 0.9 percentage points.","prior_refs":[],"source_url":"http://arxiv.org/abs/2611.09609","source_urls":["http://arxiv.org/abs/2611.09609"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:not-your-diary-just-your-topic-grading-the-f89387","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/not-your-diary-just-your-topic-grading-the-f89387/","markdown":"https://newruntime.com/posts/not-your-diary-just-your-topic-grading-the-f89387.md","json":"https://newruntime.com/posts/not-your-diary-just-your-topic-grading-the-f89387.json"},"markdown_url":"https://newruntime.com/posts/not-your-diary-just-your-topic-grading-the-f89387.md","next_reads":[{"type":"topic","path":"/topics/memory/","url":"https://newruntime.com/topics/memory/","title":"Memory","reason":"Explore the memory topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/memory.md","json_url":"https://newruntime.com/topics/memory.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}