Author

Hanjie Chen

Rice University

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Preprint Aug 2026

SPECTRA: Pushing the KV Cache Beyond the 2-Bit Cliff via Spectral Transform Coding

SPECTRA is developed, a training-free, drop-in codec that re-encodes the cache into a coordinate system and concentrates the bit budget on the channels that carry the signal, pushing usable compression past the 2-bit cliff so the same GPU holds longer contexts and larger batches.

Jiamu Zhang, Liang Wu, Kelly Wan et al. · 1 citation

Preprint Aug 2026

Perception Before Reasoning: Dynamic Latent Reasoning for Video Understanding and Question Answering

DyLaR is proposed, which first grounds a question in a short block of perception latents, and then adaptively decides whether to append reasoning latents before answering, and which improves average accuracy over same-backbone baselines while generating fewer than 20 tokens per query.

Hao-Tian Xia, Zilin Xiao, Junbo Zou et al. · 0 citations