Author

Changhai Zhou

h-index 5 View on Semantic Scholar

We have 2 of 16 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

#machine learning Preprint Sep 2026

Positions Are Not Facts: The Mismatch Between KV Caches and Memory

When a fact changes, how should a language model update the history stored in its key-value (KV) cache? Hiding the old record is cheap, but it may still contain needed details or answer questions about the past. We compare hiding whole records, hiding only replaced values, and deleting old text and recomputing the cach...

Chang-Hai Zhou, Yu-Hua Zhou, Shi-Yang Zhang et al. · 0 citations

Jul 2026

LongStraw: Long-Context RL Beyond 2M Tokens under a Fixed GPU Budget

This work presents LongStraw, an objective-aware, architecture-aware system for resident-state virtualization, response replay, and distributed-gradient execution that bounds the live training graph by the response suffix while reusing the expensive prompt computation across the complete GRPO group.

Changhai Zhou, Kieran Liu, Yuhua Zhou et al. · arXiv.org · 2 citations