tracked author

Xinyu Wei

Core-contributor-marked author of HiLS-Attention with paper-time affiliation ShanghaiTech University. Kewei Tu homepage lists Xinyu Wei as a current master student; stable public profile evidence beyond the paper and advisor page remains limited.

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Jul 09, 2026

Hierarchical Sparse Attention Done Right: Toward Infinite Context Modeling

HiLS Attention 把 chunk wise sparse attention 的选择问题改写为可端到端训练的 hierarchical softmax：每个 chunk 用 landmark token 生成压缩 key 和 entropy bias，query 先给 chunk 分配总 attention mass，再在被选 chunk 内做 token level attention。它在 345M 到 7B 实验中同...

2607.02980-hils-attention-infinite-context Sparse Attention Long Context