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J Rosser

@jrosseruk.bsky.social
19 followers 71 following 5 posts

Research Scientist Intern at Spotify | DPhil in Machine Learning at the University of Oxford

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J Rosser @jrosseruk.bsky.social · 27/06/2025
Quiz time: I shrank my pretrained LLM's VRAM usage from 1TB+ to 50GB with zero drop in performance. What did I do? 1) 🪄Quantization🪄 2) ⚡FlashAttention⚡ 3) 🏁Gradient checkpointing🏁 4) 💾KV cache to CPU💾
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J Rosser @jrosseruk.bsky.social · 17/06/2025
🎉It's happened! AgentBreeder got its first citation!🎉 arxiv.org/abs/2506.04572
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J Rosser @jrosseruk.bsky.social · 12/06/2025
Excited to share that I've joined @spotify.bsky.social as a Research Scientist PhD Intern this summer investigating Mechanistic Interpretability for long context reasoning in LLMs! #Spotify #InternAtSpotify #LifeAtSpotify
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J Rosser @jrosseruk.bsky.social · 12/06/2025
Had an awesome time presenting mine and @jfoerst.bsky.social's "AgentBreeder" paper at #ICLR2025 to a room of over a hundred researchers! Our approach addresses pre-deployment Al safety risks in multi-agent systems by evolving thousands of "scaffolds" from base LLMs in a multi-objective setting.
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