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Yi Xu

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Preprint Oct 2026

Coda: Exploiting Admission Flexibility for Coding-Agent Serving

Coding agents powered by large language models (LLMs) repeatedly alternate between model inference and tool calls, creating long-lived sessions with reusable key-value (KV) states and asynchronous request resumptions. Logical readiness, however, does not ensure efficient admission in a shared serving system. Through di...

You-He Jiang, Fang-Cheng Fu, Bin-Hang Yuan et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Crossflow: Prefill-Decode Elasticity for Agentic LLM Serving

This work presents Crossflow, which makes this boundary elastic without changing node roles, and improves token throughput by 16.2-17.4% on geometric mean over static P/D, and by up to 43.4% at high load, while reducing mean TTFT at every evaluated point.

Yi Xu, Ehsan K. Ardestani, Wen-Yin Fu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

EMA: Elastic and Performance Transparent Memory Across GPUs

This work presents EMA, a memory sharing system that allows GPUs within a server to borrow and reclaim memory from each other, forming an elastic pool of capacity, and ensures performance transparency for both borrowers and lenders.

Yi Xu, Tian Xia, Ion Stoica · 0 citations
#artificial intelligence Preprint Sep 2026

Occamy-1.0: Open Pareto-frontier 35B Intelligence for Co-work

Occamy-1.0, a cost-efficient co-work model obtained by further training the post-trained Qwen3.6-35B-A3B checkpoint, is presented and placed at the low-cost knee of the observed cost--performance Pareto frontier.

Wen-Hui Chen, Shi-Wen Cheng, Hao Dong et al. · 3 citations

Attention Amnesia in Hybrid LLMs: When CoT Fine-Tuning Breaks Long-Range Recall, and How to Fix It

QK-Restore consistently restores long-context capability at zero training cost while preserving reasoning performance; for instance, on HypeNet-5B it improves S3@256K from $65.4\%$ to $76.4\%$ while maintaining strong reasoning performance.

Xinyu Zhou, Boyuan Zhu, Yi Xu et al. · 0 citations

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