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Author

Cong Gao

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Aug 2026

Towards Industrial-Scale Parametric Query Optimization

A KL-divergence-driven model fine-tuning and plan updating strategy that dynamically adapts to workload changes is introduced, demonstrating improved scalability and robustness for industrial-scale PQO.

Song-Song Mo, Quan-Qing Xu, Xu-Chen Ding et al. · 0 citations
Jul 2026

LiteTopK: Exploiting the Curse of Dimensionality for a Fused Indexer-TopK Kernel in Long-Context Sparse Attention

This study observes that sparse attention scores exhibit a score concentration phenomenon, where scores tend to fall within a narrow range, and proposes LITETOPK, an efficient fused Indexer-TopK kernel, which exploits the similarity of top-k candidate sets among neighboring tokens and proposes LITEDSA, which exploits t...

Zi-Qi Yin, Jian-Yang Gao, Peiqi Yin et al. · 1 citation
Jul 2026

Demonstrating TOFFEE: A Learned System for Synthesizing Data Agent Trajectories at Scale

This work introduces TOFFEE, a system for synthesizing high-quality data agent trajectories from given data environments via Monte Carlo Tree Search (MCTS) with adaptive model selection and cross-task prefix reuse, and shows that TOFFEE can effectively generate scalable trajectory data for complex analytical tasks acro...

Ziting Wang, Yin Li, Zuhao Yang et al. · 0 citations

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