activity
20192026
most citedCardinality Estimation in DBMS: A Comprehensive Benchmark Evaluation

17 citations · 39 across the 10 of their papers we have counts for

collaborators

10 papers

cs.DB2026

SpecDB: LLM-Generated Customized Databases via Feature-Oriented Decomposition

Yunkai Lou, Longbin Lai, Shunyang Li +2

Mainstream relational databases ship a uniform feature set across deployments, although individual workloads exercise only a fraction of the available subsystems. We investigate wh…

cs.DC2026

A Few GPUs, A Whole Lotta Scale: Faithful LLM Training Emulation with PrismLLM

Shaoke Xi, ChonLam Lao, Boyi Jia +11

Large language model (LLM) training today runs on clusters spanning thousands of GPUs. While this scale enables rapid model advances, developing, debugging, and performance-tuning…

cs.AI2026

OpenHospital: A Thing-in-itself Arena for Evolving and Benchmarking LLM-based Collective Intelligence

Peigen Liu, Rui Ding, Yuren Mao +7

Large Language Model (LLM)-based Collective Intelligence (CI) presents a promising approach to overcoming the data wall and continuously boosting the capabilities of LLM agents. Ho…

cs.DC2024

TrainMover: An Interruption-Resilient Runtime for ML Training

ChonLam Lao, Jiaqi Gao, Jiamin Cao +13

Large-scale ML training jobs are frequently interrupted by hardware and software anomalies, failures, and management events. Existing solutions like checkpoint-restart or runtime r…

cs.DB2021★ 17 cited

Cardinality Estimation in DBMS: A Comprehensive Benchmark Evaluation

Yuxing Han, Ziniu Wu, Peizhi Wu +11

Cardinality estimation (CardEst) plays a significant role in generating high-quality query plans for a query optimizer in DBMS. In the last decade, an increasing number of advanced…

cs.DB2021

Higher-Order Neighborhood Truss Decomposition

Zi Chen, Long Yuan, Li Han +1

-truss model is a typical cohesive subgraph model and has been received considerable attention recently. However, the -truss model only considers the direct common neighbors…

cs.AI2020★ 6 cited

FSPN: A New Class of Probabilistic Graphical Model

Ziniu Wu, Rong Zhu, Andreas Pfadler +5

We introduce factorize sum split product networks (FSPNs), a new class of probabilistic graphical models (PGMs). FSPNs are designed to overcome the drawbacks of existing PGMs in te…

cs.DB2020★ 16 cited

FLAT: Fast, Lightweight and Accurate Method for Cardinality Estimation

Rong Zhu, Ziniu Wu, Yuxing Han +5

Query optimizers rely on accurate cardinality estimation (CardEst) to produce good execution plans. The core problem of CardEst is how to model the rich joint distribution of attri…

cs.CL2020

Taming the Expressiveness and Programmability of Graph Analytical Queries

Lu Qin, Longbin Lai, Kongzhang Hao +6

Graph database has enjoyed a boom in the last decade, and graph queries accordingly gain a lot of attentions from both the academia and industry. We focus on analytical queries in…

cs.DB2019

A Survey and Experimental Analysis of Distributed Subgraph Matching

Longbin Lai, Zhu Qing, Zhengyi Yang +10

Recently there emerge many distributed algorithms that aim at solving subgraph matching at scale. Existing algorithm-level comparisons failed to provide a systematic view to the pr…