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 ============================ 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. 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 Mathematical Foundations of Computer Science (MFCS), 2012. International Conference on Extending Database Technology (EDBT): 2008, 2009, 2011. 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