Keynote speaker of ICDT 2016 Keynote speaker of the 3rd International Workshop on Keyword Search on Structured Data 2012 Keynote speaker of International Conference on Web-Age Information Management (WAIM) 2014 Keynote speaker of the Asia Pacific Web Conference (APWeb) 2016 Invited speaker of the 23rd Australasian Database Conference (ADC) 2012 Invited speaker of the 2nd Workshop on Computational Geometry and Machine Learning 2017 ============================ Computer Science Review (2021-now) Associate editor of ACM TODS (2008-2015) Associate editor of IEEE TKDE (2012-2014) Guest editor of GeoInformatica (issue 17(3), 2013) Field editor for Encyclopedia of Geographic Information Systems ============================ PODS Executive Committee 2019-present Program chair of PODS 2020 Program co-chair of ICDE 2014 Program co-chair of SSTD 2011 Program co-chair of MobiDE 2011 Program co-chair of DBRank 2009 General co-chair of MobiDE 2012 Steering committee of MObiDE 2013 Senior PC member of CIKM 2012, 2015 Group leader/associate editor of SIGMOD 2017, 2023 Area PC chair of ICDE, 2011, 2016 Gems of PODS Committee, 2019 General chair of ADC, 2017 Demonstration program co-chair of WWW 2014 Demonstration program chair of SIGMOD 2010 Tutorial chair of SIGMOD 2013, 2014 DYL series Co-chair of WAIM 2015 Workshop co-chair of VLDB 2009 Member of the SSTD Endowment since 2014 ============================ Member of the ACM Heidelberg Laureate Forum Selection Committee, 2022, 2023, 2024 ============================ ACM SIGMOD Research Highlight Award Committee Member 2023 Best-paper award committee of SIGMOD 2014 Best-paper award committee of ICDE 2013 Best-paper award committee of VLDB 2010 Test-of-time award committee of EDBT 2021 ============================ PC Memberships SIGMOD: 2007, 2008, 2009, 2012, 2015, 2017 (group leader), 2018, 2019, 2022, 2023 (associate editor), 2024 VLDB: 2005, 2009, 2010, 2012, 2013, 2014, 2015, 2017, 2018, 2020, 2021 (associate editor), 2022, 2023 PODS: 2014, 2016, 2017, 2019, 2020 (PC chair), 2022, 2024 ICDT: 2015, 2018, 2022, 2024, 2025 ICDE: 2005, 2007, 2008, 2009, 2010, 2011 (area chair), 2012, 2013, 2014 (PC co-chair), 2016 (area chair), 2017, 2019-2022 KDD: 2010-2018, senior PC member 2019-2023 WWW: 2013 International Symposium on Computational Geometry (SoCG) 2024 International Symposium on Mathematical Foundations of Computer Science (MFCS), 2012 International Conference on Extending Database Technology (EDBT): 2008, 2009, 2011, 2025 International Conference on Data Mining (ICDM): 2008 Conference on Information and Knowledge Management (CIKM): 2006, 2009, 2010-2011, 2012 (senior PC), 2015 (senior PC), 2018, 2020-2022 Symposium on Spatial and Temporal Databases (SSTD): 2007, 2009, 2013, 2015 ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS): 2009, 2014 BigData 2022 International Conference on Scientific and Statistical Database Management (SSDBM): 2007, 2008, 2010, 2011 International Conference on Database and Expert Systems Applications (DEXA): 2006, 2007, 2008, 2009 International Conference on Data Warehousing and Knowledge Discovery (DaWaK): 2011, 2012 Australasian Database Conference (ADC): 2009 SIAM International Conference on Data Mining (SDM): 2009, 2010 (senior PC) Database Systems for Advanced Applications (DASFAA): 2005, 2006, 2007, 2008, 2010, senior PC member 2021-2023 International Conference on Mobile Data Management (MDM): 2007, 2008, 2010, 2013, 2021 International Conference on Fuzzy Systems and Knowledge Discovery (FSKD): 2007 IEEE International Conference on Computational Science and Engineering: 2008 International Conference on Mobile and Ubiquitous Systems: Computing, Networks and Services (MobiQuitous): 2007 Web-Age Information Management (WAIM): 2004, 2006, 2007, 2008, 2009, 2013 Asia-Pacific Web Conference (APWeb): 2007, 2010 IEEE International Conference on Tools with Artificial Intelligence (ICTAI): 2006 International Conference on Information Systems, Technology and Management (ICISTM): 2007 International Conference on scalable uncertainty management (SUM): 2007 European International Conference on Data Mining (ECDM): 2007 International ACM Workshop on Data Engineering for Wireless and Mobile Access (MobiDE): 2006, 2007 International Workshop on Web and Wireless GIS (W2GIS): 2005, 2006, 2007 BeyondMR 2018 Workshop on Massive Data Algorithmics (MASSIVE): 2012 Workshop on Mining Spatial and Spatio-temporal Data (SSTDM): 2006 Workshop on Data Mining of Uncertain Data (DMU): 2007 International Workshop on Data Mining and Applications (IWDMA): 2006 International Workshop on High Performance Data Mining and Applications (HPDMA): 2007 International Workshop on Security and Privacy in GIS and LBS (SPRINGL): 2008 International Workshop on Privacy-Preserving Data Analysis (PPDA): 2009 First International Workshop on Cloud Data Management (CloudDB): 2009 Workshop on Querying Uncertain Spatio-Temporal Data (QUEST), 2011 Workshop on Uncertainty Management of Uncertain Data (MOUND): 2009 International Workshop on Ranking in Databases (DBRank): 2010, 2012 International Workshop on Managing and Mining Semantically Rich Geo-Spatial Data (GeoRich), 2014, 2016, 2020 VLDB PhD Workshop: 2005, 2006, 2019 SIGMOD/PODS PhD Symposium 2014 ============================ Awards as a Reviewer Outstanding reviewer award at KDD 2012 Distinguished PC member at SIGMOD 2018, 2019 Distinguished Review board member at VLDB 2020, 2022 Distinguished Associate Editor Award at VLDB 2021