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J Rosser

Karma: 135

Hi everyone! I’m J! I’m currently doing a DPhil in Machine Learning (AI Safety) at the University of Oxford, and a previous collaborator at UK AISI.

My Neel Nanda MATS 10.0 Ap­pli­ca­tion: Study­ing Fea­ture Split­ting in SAEs via Train­ing Data Attribution

J Rosser21 Aug 2026 9:41 UTC
19 points
0 comments13 min readLW link

Data fil­ter­ing works a lot worse than you would ex­pect

7 Jul 2026 4:41 UTC
59 points
9 comments3 min readLW link

In­fu­sion: Re­v­erse en­g­ineer­ing In­fluence Func­tions to craft train­ing doc­u­ments...

J Rosser28 Mar 2026 14:40 UTC
5 points
0 comments2 min readLW link

Speedrun­ning a Mech In­terp Re­search Setup (Re­mote GPU, Torch, Trans­formerLens, Cuda, SSH, VS Code)

J Rosser5 Feb 2026 16:45 UTC
41 points
3 comments4 min readLW link

Trans­mit­ting Misal­ign­ment with Sublimi­nal Learn­ing via Paraphrasing

17 Dec 2025 19:34 UTC
41 points
0 comments10 min readLW link

The Case for White Box Control

J Rosser18 Apr 2025 16:10 UTC
5 points
1 comment5 min readLW link