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- SpecSlot separates image detail from global-attention sequence length
A 22-page arXiv paper under review at ICLR 2027 introduces SpecSlot, a pixel-space rectified-flow Transformer designed to increase spectral detail without enlarging the global-attention sequence. It expands each spatial anchor into slots assigned to disjoint bands of DCT coefficients. Only the lowest-frequency slot participates in global attention, while all slots interact locally; a spatial head adds a local correction to the spectral prediction. The authors report comparable final FID and faster convergence versus a FLOPs-matched JiT control on ImageNet-256. On ImageNet-512, they report a 2.84 FID improvement with 3.9% fewer FLOPs, while on DPG-Bench the model reportedly exceeds JiT-B/8 by 1.06 at 40.6% lower forward cost. These results are author-reported and have not been independently verified.
Hugging Face · Papers · 🔥 0
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