Across reasoning, long-context understanding, and agentic tasks, SAS consistently outperforms trainable sparse attention baselines across attention budgets, with especially large gains under tight budgets, demonstrating more effective context ranking for downstream tasks.
This work constructs SemanticSeg, a large and diverse semantic segmentation dataset, and proposes block distillation, a training framework that is more efficient than block fine-tuning, which uses a frozen full-attention teacher model to guide the block-attention student.
Shuaiyi Li, Zhisong Zhang, Yan Wang et al.· arXiv.org· 0 citations
Hierarchical Landmark Sparse Attention is proposed, a chunk-wise sparse attention mechanism that learns chunk selection end-to-end under the language-modeling (LM) loss, enabling long-context LLMs that are both more efficient and more effective on general long-context tasks than their full-attention counterparts.
Xiang Hu, Xinyu Wei, Hao Gu et al.· 3 citations
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