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Author

Junming Chen

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Open access Sep 2026

E-LQO: A Comprehensive Energy Evaluation Framework for Learned Query Optimization

Learned Query Optimization (LQO) has emerged as a promising paradigm for improving database performance, with reported speedups of 2× to over 10× on standard benchmarks. Existing evaluations, however, remain largely latency-centric and leave the energy debt from data collection, model training, and online inference l...

Zi-Bo Liang, Quan-Qing Xu, Xu Chen et al. · 0 citations
Aug 2026

DBAgent: An RL-Based Agent for Autonomous Database Operations and Maintenance

DBAgent is presented, an autonomous agent for Huawei Cloud Data Warehouse Service (DWS) integrated with Autopilot (DWS's production monitoring, alerting, and auto-remediation service) that consumes DWS telemetry and Autopilot alerts and produces evidence-grounded reports with low hallucination on DWS benchmark.

Xu Chen, Jun-Ming Chen, Shuncheng Liu et al. · 0 citations
Jul 2026

DBA-Bench: A Production-Fidelity Benchmark for LLM-Based Database Operations Agents

DBA-Bench is presented, a benchmark addressing four gaps between evaluation and production operations: live-environment fidelity, outcome-first evaluation, and controlled scenario reproducibility, which uses instrumented PostgreSQL environments with active workloads, persistent state, and multi-source observations.

Jun-Ming Chen, Jun-Yang Jiang, Xu Chen et al. · 0 citations

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