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#artificial intelligence Preprint Sep 2026

FocusVTC: Efficient and High-Performance Visual Text Compression with Adaptive Resolution

Long-context reasoning in large language models incurs substantial computation and memory costs. Visual text compression (VTC) reduces input length by rendering text as images, but fixed-resolution rendering creates a compression-performance trade-off: low DPI saves tokens at the expense of legibility, whereas high DPI...

Fang-Zhi Zhong, Xue-Rui Qiu, Yu-Qi Pan et al. · 0 citations
#machine learning Preprint Sep 2026

Block Sparse Attention with Log-Linear Complexity

PISA is proposed, a block-sparse attention mechanism that employs a pyramid Top-$K selection strategy, and develops hardware-aware Triton kernels for both training and inference, fusing hierarchical routing and LogSumExp scoring without materializing the query-key score matrix.

Bo-Hao Tang, Zhen Qin, Yu-Qi Pan et al. · 0 citations
Preprint Aug 2026

Modular TTT: Rethinking Test-Time Training as Composable Modules

Modular TTT is proposed, a framework that represents the inner learner as a directed acyclic graph and exposes the fast-weight network, loss function, learning rate, weight decay, and normalization as explicit design dimensions and finds that small learning-rate initialization, weight decay, and a single-layer nonlinea...

Bo-Hao Tang, Zhen Qin, Yu-Qi Pan et al. · 1 citation
#machine learning Preprint Aug 2026

LoGo: Token-Level Dynamic Local-Global Attention

LoGo, a token-level dynamic local-global attention mechanism that uses attention span as a direct proxy for attention budget allocation, is proposed and results suggest that learned token-level span allocation is an effective and scalable way to improve the long-context performance-compute trade-off.

Yu-Qi Pan, Zheng Li, Bo-Hao Tang et al. · 1 citation

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