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Hejian Sang

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#artificial intelligence Preprint Oct 2026

AvoKV-E: Payload-Aware KV Cache Eviction for Long Reasoning

Long-output reasoning shifts the KV-cache bottleneck from the fixed prompt to the generated trace. Existing reasoning-cache eviction methods largely treat cached entries as routing objects, estimating whether an old key will still be read, will recur, or can be replaced. This routing-only view overlooks two effects: lo...

Han Yu, Wen-Hui Zhu, Xi-Wen Chen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

LatentPress: Context Compression Beyond Text and Vision

LatentPress is introduced, which writes conversational histories and long documents into a third representation: continuous memory tokens that a frozen decoder reads directly through its input-embedding interface, with no text reconstruction at inference.

Zheng-Ze Zhou, Hejian Sang · 1 citation
Jul 2026

TREK: Distill to Explore, Reinforce to Refine

TREK (Teacher-Routed Exploration via Forward KL), a simple staged procedure that uses distillation not for imitation but for exploration support expansion, achieves high success rates early in training while unaided GRPO requires substantially more optimization steps to reach comparable levels.

Yuanda Xu, Zhengze Zhou, Kayhan Behdin et al. · 0 citations

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