Nestor: nested attention sparsity from HKU/Berkeley challenges MoE for pretraining

hkuhk · hf · 2026-10-27

Nestor, by Tianzhe Chu (HKU), Druv Pai and Yi Ma (UC Berkeley/HKU), explores conditional computation that generalizes the attention operator instead of the MLP. The induced sparsity naturally nests (hierarchically composes), and the paper reports improvements over standard MoE transformers in pretraining, long-context adaptation, and continual learning—offering an alternative route to scalable training.

Related event: HKU and Berkeley Propose Nestor, Outperforming MoE in Efficiency(2 posts)→

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