Leadership Roles

• Board of Trustees of the VLDB Endowment.
• Chair of DBCares 2018–2023; Member of DBCares 2023–present.

Conference Organization

PC Co-chair

• KDD'22 Applied Data Science (ADS) Track
• WSDM'22
• VLDB'21
• Sigmod'18

Other Co-chair Roles

• ICDE'25 Panel Track
• SigKDD'20 Applied Data Science Invited Talks
• VLDB'19 Tutorial Track
• ICDE'19 Industry Track
• APWeb'16 Industry Track
• WAIM'15
• APWeb'14 Distinguished Lecture Series
• CIKM'13 Demo Track
• DIMACS Workshop on Integrating Big Data
• ACM SIGMOD New Researcher Symposium'12–13
• Sigmod/PODS Ph.D. Symposium'12–13
• QDB'12 [Report]
• WebDB'10 [Report]
• SKG'09 [Issue]

Best Paper & Award Committees

• VLDB SDS Best Paper Award Committee, 2025
• SigKDD Best Paper Award Committee, 2025
• WSDM Test-of-Time Award Committee, 2025
• VLDB Conference Strategy Committee
• SDM Award Committee, 2024
• WSDM Best-Paper Award Committee, 2024
• PVLDB Advisory Committee, 2018–2023
• KDD Best-Paper Award Committee, 2022
• KDD 10-Year-Best-Paper Award Committee, 2021
• TCDE Award Committee, 2017–2019
• CIKM Best Paper Award Committee, 2017

Area Chair / Senior PC

VLDB'27, Sigmod'26, VLDB'25, CIKM'24, Sigmod'24, WebConf'23, AAAI'23, VLDB'20, IJCAI'19, CIKM'19, APWEB-WAIM'19, AKBC'19, CIKM'18, Sigmod'17, Sigmod'15, ICDE'13, CIKM'11.

PC Member

ARR'26, CVPR'26, NeurIPS'25, ARR'25, SigKDD'19, PVLDB'18, PVLDB'17, PVLDB'16, Sigmod'16, PVLDB'15, PVLDB'14, Sigmod'14, PVLDB'13, Sigmod'12, VLDB'12, EDBT'12 Industry track, Sigmod'11, PVLDB'11, WAIM'11, AMW'11, PVLDB'10, ICDE'10, WWW'10, VLDB Demo'10, NTII'10, PVLDB'09, VLDB'09, CIKM'09, WebDB'09, WWW'08, CIKM'08, VLDB Demo'08, WebDB'08.

Editorial Work

• Associate Editor, IEEE Data Engineering Bulletin: "Special Issue on Retrieval-Augmented Generation (RAG)", 12/2024
• Associate Editor, IEEE Data Engineering Bulletin: "Special Issue on Personal Information Management (PIM)", 12/2023
• Associate Editor, IEEE Data Engineering Bulletin: "Special Issue on Towards Quality Data with Fusion and Cleaning", 9/2011
• Associate Editor, SigKDD Explorations
• Associate Editor, VLDB Journal
• Associate Editor, TKDE
• Associate Editor, JDIQ "Web Data Quality" special issue

Reviewing

• Referee for Nature, VLDB Journal, TODS, TCS, TOIT, TOIS, TKDE, IS.
• NSF panelist, 2011.
• NIH contract reviewer, 2008.