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Ruiyuan Xu

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#artificial intelligence Preprint May 2026

KLineage: Recovering the Missing When of Kernel Optimization by Deoptimizing Experts

This work introduces KLineage, which learns this missing"when"knowledge from expert kernels: instead of relying on forward rollouts, KLineage walks expert implementations backward through validation-gated simplifications and reverses each accepted step into a reusable optimization skill.

Shuo-Ming Zhang, Qiu-Chun Yu, Rui-Yuan Xu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

SPLASH: Switching Parallel Layouts of Attention with Seamless Handoff for LLM Serving

No single way of parallelizing attention serves large language models well under all loads. Low concurrency favors tensor parallelism, many independent requests favor data-parallel attention, and long prompts favor context parallelism. Reasoning, agentic, and RL-rollout workloads make a fixed choice untenable: a batch...

Chuan Liu, Shuo-Ming Zhang, Zhi-Cheng Li et al. · 0 citations
Review Jul 2026

Decode-Time Grammars: Constrained LLM Generation over a Refinement Order of Grammar Fragments

Large language models now write a growing share of the world's code, increasingly inside agents and serving systems that compile, execute, or dispatch generated code without line-by-line review. This works well for mainstream languages but remains brittle for low-resource programming surfaces such as domain-specific la...

Shuoming Zhang, Ruiyuan Xu, Haofeng Li et al. · 0 citations

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