Xiaoju Wu

dblp:414/4677 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2025
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Databases, data management, data science and information retrieval · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Databases, data mining, and information retrieval
1 paper
Database system architecture and tuning · 100%

Topics — the 2 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Database system architecture and tuning
index recommendation
0.912025
Hyper: Hybrid Physical Design Advisor with Multi-agent Reinforcement Learning · ICDE 2025
Database system architecture and tuning › database design
physical database design
0.912025
Hyper: Hybrid Physical Design Advisor with Multi-agent Reinforcement Learning · ICDE 2025

Methods — techniques the papers use, named apart from their topics

what-if optimizer · 0.9multi-agent reinforcement learning · 0.9
YearPublicationVenuePosition
2025 Hyper: Hybrid Physical Design Advisor with Multi-agent Reinforcement Learning
abstract
Various physical design (PD) options within a single database have emerged to optimize diverse workloads, including row-based PDs (e.g., index) and column-based PDs (e.g., column-store replica), each with its own acceleration advantages for different workloads. Determining the optimal combination of these two PDs is a labor-intensive and challenging task, yet it could result in significant performance improvements for the system. Recent automated index advisors (AIAs) have concentrated on identifying the most advantageous combination of row-based PDs. However, the extension of these efforts to the present problem has proven challenging due to 1) the larger search space of hybrid PD selections, 2) the inadequate consideration of the complex interactions between heterogeneous PDs, and 3) the inaccurate evaluation made by the what-if optimizer. To address these issues, we propose a Hybrid physical design advisor (Hyper) with multi-agent reinforcement learning. Hyper excels at recommending the optimal combination of PDs under any specific workload, with an overarching emphasis on both efficiency and quality. Comprehensive evaluations on well-established benchmarks show that our approach outperforms state-of-the-art methods.
Yuanjia Zhang, Chengcheng Yang, Ahmad Ghazal, Rong Zhang 0002, Huiqi Hu, Xiaoju Wu, Xuan Zhou 0001
ICDE7