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Zijie Zhou

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LLM Serving Optimization with Variable Prefill and Decode Lengths

Sorted-F, which repeatedly selects feasible batches using an F-metric that balances batch cardinality against downstream decode cost, achieves a constant-factor approximation guarantee in the unit-time, uninterrupted-decoding model with known output lengths.

Meixuan Wang, Yinyu Ye, Zijie Zhou · 16 citations · ⚡2
Preprint Aug 2026

Efficiency and Cost Alignment in Batched LLM Serving via Resource-Fair Scheduling

A mathematical scheduling model that connects within-batch resource fairness to system throughput and provides a bi-criterion scheduling policy, ISJL, which maintains high throughput while aligning max-driven batch cost with token-metered revenue.

Da-Yi Yao, Zijie Zhou · 0 citations
Preprint Jul 2026

Online Linear Programming for Multi-Objective Routing in LLM Serving

This work introduces a multi-objective optimization framework that formulates routing as an online linear programming with interpretable decision rewards and applies an efficient bid-price control policy based on the online linear programming that admits requests when their SLO-weighted benefit exceeds their shadow pri...

Zixi Chen, Yinyu Ye, Zijie Zhou · 0 citations

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