Pedro

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Pedro

Pedro

@pmpcurvo

AI @UvA_Amsterdam

Amsterdam Katılım Mayıs 2025
423 Takip Edilen141 Takipçiler
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Pedro
Pedro@pmpcurvo·
Guide with examples, not rewards 🐘 Controlling what a pretrained generative model produces is still mostly a choice between three slow options: fine-tune it, attach a reward network, or search at inference. We found flow matching allows a fourth, and it costs almost nothing. In deterministic interpolants, the velocity of the flow is determined by where the trajectory is headed: the endpoint mean. Shift that mean, and the entire flow shifts with it. This turns control into a matter of reference. Change the examples that define the endpoint, and you change the direction the model follows. The examples need not be perfect. They only need to point the flow toward the attribute you want. Color, identity, style, and structure, all controllable through examples. 🧵👇
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Max Zhdanov
Max Zhdanov@maxxxzdn·
Pop-art Amsterdam?
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Max Zhdanov
Max Zhdanov@maxxxzdn·
Or there were even more trees in Amsterdam?
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apolinario 🌐
apolinario 🌐@multimodalart·
congrats on the paper/technique, it's incredible to have an inference-time technique "for free" that allows for steering the model into reference directions imo, huge unlock
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Pedro
Pedro@pmpcurvo·
Guide with examples, not rewards 🐘 Controlling what a pretrained generative model produces is still mostly a choice between three slow options: fine-tune it, attach a reward network, or search at inference. We found flow matching allows a fourth, and it costs almost nothing. In deterministic interpolants, the velocity of the flow is determined by where the trajectory is headed: the endpoint mean. Shift that mean, and the entire flow shifts with it. This turns control into a matter of reference. Change the examples that define the endpoint, and you change the direction the model follows. The examples need not be perfect. They only need to point the flow toward the attribute you want. Color, identity, style, and structure, all controllable through examples. 🧵👇
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Pedro
Pedro@pmpcurvo·
8/9 We also introduce Semi-Parametric Guidance (SPG), which amortizes the same idea with a learned cross-attention anchor and residual refiner. On AFHQv2, it preserves unconditional DiT-B/4 quality while letting class proportions track the reference set provided at inference.
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