Department of Computer Science and Engineering
I received my 5-year Diploma From the Department of Computer Engineering and Informatics, University of Patras in 1995 and my PhD from HKUST in 2000. I'm currently an associate professor at the Department of Computer Science and Engineering, University of Ioannina. In the past I was a faculty member at the Department of Computer Science, University of Hong Kong.
Management and Analysis of complex data types (spatial, spatio-temporal, time-series, text, set-valued, graphs), big data management and analysis, data privacy and security, uncertain data management.
Past research grants and awards
2002-2005: Storage schemes and search algorithms for high dimensional data,
HKU 7380/02E (from Hong Kong RGC)
2003-2005: Evaluation of Proximity Queries over Spatial Road Networks, HKU 7149/03E (from Hong Kong RGC)
2004-2006: Periodicity of movement in spatiotemporal databases, HKU 7142/04E (from Hong Kong RGC)
2006-2008: Continuous Constraint Query Evaluation for Spatio-temporal Data Sequences, HKU 7160/05E (from Hong Kong RGC)
2007-2009: Evaluation of Advanced Spatial Queries in Sensor Networks, HKU 7155/06E (from Hong Kong RGC)
2008-2010: Top-k Dominating Queries on Multi-dimensional Data, HKU 714907E (from Hong Kong RGC)
2009-2011: Privacy Preservation in the Publication of Data Sequences, HKU 715108E (from Hong Kong RGC) 2010-2012: Algorithms for Large-Scale Matching Problems, HKU 715509E (from Hong Kong RGC) 2011-2014: Durable Queries in Temporal and Spatio-temporal Databases, HKU 715711E (from Hong Kong RGC) 2012-2015: Spatio-textual Joins, HKU 714712E (from Hong Kong RGC) 2013-2016: Efficient Management of Geosocial Data, HKU 715413E (from Hong Kong RGC) 2015-2017: Efficient Management of Spatial Semantics in RDF Knowledge Bases, 17205814 (from Hong Kong RGC)
Outstanding Young Researcher Award 2008-2009, University of Hong Kong
Best Paper Award @ SSTD 2015
Regular reviewer for international journals including: ACM TODS, IEEE TKDE, VLDB Journal, ACM TKDD, ACM TOIT, ACM TWEB, ACM TSAS, Information Systems, Information Sciences, International Journal of GIS, Geoinformatica, KAIS, ACM Transactions on Algorithms, Theoretical Computer Science, Pattern Analysis and Applications Journal, Communications of ACM, etc.
2020: SIGMOD, VLDB
2019: ICDE, EDBT, SIGMOD, KDD, PAKDD (Senior PC member), MDM, SSTD
2018: ICDE, EDBT, SIGMOD, VLDB, PAKDD (Senior PC member), ACM GIS (Senior PC member), DASFAA (Senior PC member)
2017: ICDE, SIGMOD, KDD, DASFAA, PAKDD (Senior PC member), SSTD, VLDB
2016: ICDE, SIGMOD, KDD, PAKDD (Senior PC member), GeoRich@SIGMOD, VLDB, CIKM
2015: ICDE, EDBT, SIGMOD, KDD, PAKDD (Senior PC member), CIKM (PC vice chair), DASFAA (Senior PC member), GeoRich@SIGMOD, SSTD, LocalRec@RecSys
2014: ICDE (Track Chair), SIGMOD, VLDB, KDD, SSDBM, CIKM (PC vice chair), PAKDD (Senior PC member), DASFAA
2013: ICDE, SIGMOD (Demo Track), SDM, ACM GIS, KDD, CIKM, SSTD, MDM, PAKDD (Senior PC member), DASFAA, DBRank@ICDE
2012: ICDE, KDD (Senior PC member), ACM GIS (Senior PC member), DEXA, HDMS, DASFAA, CIKM, DBRank@ICDE, HDMS, ASONAM
2011: EDBT, DASFAA, VLDB, MDM, SSTD, SIGMOD (demo track), DEXA, LBSN@GIS, DBRank@ICDE, ACM GIS, CIKM, MEDI, HDMS
2010: ICDE, SIGMOD, MDM, DEXA, DASFAA, SBBD, LBSN@GIS, CIKM, ICDM
2009: EDBT, ICDE, VLDB, SBBD, DASFAA, MDM, DEXA, SDM, PPDA, ADBIS, ASONAM, ICDM, COMAD, ACM GIS, CIKM (PC vice chair)
2008: ICDE, DBRank@ICDE, MDM, IADIS ECDM, DaWaK, KDD, HDMS, IDEAS, ACM GIS, ICDM (PC vice chair)
2007: ICDE, DBRank, STDM, MDM, IADIS ECDM, DaWaK, SSTDM-VAM, HPDMA, KDD, SSTD, HDMS, ECML/PKDD, VLDB, ADBIS, ACM GIS, IDEAS, ICDM (PC vice chair), DUNE, SSTDM
2006: WAIM, DaWaK, KDD, VLDB, HDMS, CIKM, ICDM
2005: ICDE, ICDM, COMAD 2005b,
2004: ACM GIS, HDMS, ICDM
PC chair of the 12th Hellenic Data Management Symposium (HDMS 2014)
Demonstrations co-chair of the IEEE International Conference on Data Mining (ICDM 2014)
PC co-Chair of the 19th International Conference on Management of Data (COMAD 2013)
Tutorials co-Chair of the 27th International Conference on Data Engineering (ICDE 2011)
PC co-Chair of the ICDE 2010 PhD Workshop
PC co-Chair of the Eleventh International Symposium on Spatial and Temporal Databases (SSTD 2009)
Co-organizer of the Third International Workshop on Ranking in Databases (DBRank 2009)
Publicity Chair of the 25th International Conference on Data Engineering (ICDE 2009)
General Chair of the 20th International Conference on Scientific and Statistical Database Management (SSDBM 2008)
Co-organizer of the 1st International Workshop on Spatial and Spatio-temporal Data Mining (SSTDM06).
Knowledge and Information Systems, An International Journal, Associate Editor, 2015-.
The VLDB Journal, Associate Editor, 2011-2017.
IEEE Transactions on Knowledge and Data Engineering (TKDE), Associate Editor, 2010-2014.
Proceedings of the VLDB Endowment (PVLDB), Associate Editor, 2013.
Geoinformatica Journal (Springer), Editorial Board Member, 2007- .
Encyclopedia of Geographic Information Systems, Field editor, 2008.
Supervision of PhD students
LI Hui, PhD graduated 2018, now assistant professor at Xiamen University
LU Ziyu, PhD graduated 2016, now lecturer at Central University of Finance and Economics, Beijing
QI Shuyao, PhD graduated 2016, now at Microsoft Vancouver
TU Wenting, PhD graduated 2016, now lecturer at Shanghai University of Finance and Economics (SHUFE)
SHI Jieming, PhD graduated 2015, now at Lenovo Big Data Lab
CAI Yilun, PhD graduated 2015, now at Lenovo Big Data Lab
WANG Hao, PhD, graduated 2014, now lecturer at Nanjing University
GE Shen, PhD, graduated 2012, now at Microsoft Beijing
LI Jing, PhD, graduated 2012, now at Morgan Stanley
ZHANG Shiming (Simon), PhD, graduated 2011, now at Huawei's Noah's Ark Lab
U Leong Hou (Kamiru) , PhD, graduated 2010, now associate professor at University of Macau
Panagiotis Karras, PhD, graduated 2007, associate professor at Aarhus University
CAO Huiping, PhD, graduated 2006, now associate professor at New Mexico State University
YIU Man Lung (Ken), PhD, graduated 2006, now associate professor at Hong Kong Polytechnic University
Supervision of Masters students
Chrysanthi Kosyfaki, MSc graduated 2019
Dimitris Mpestas, MSc graduated 2017
Dimitris Serbos, MSc graduated 2017
LI Hui, MPhil graduated 2015
TANG Yu, MPhil, graduated 2014
YU Wei, MPhil, graduated 2013
ZHANG Ye, MPhil, graduated 2010
LIN Zhifeng (Arthur), MPhil, graduated 2009
SIU Wing Yan (Angela), MPhil, graduated 2008
TAM Ming Wai, MPhil, graduated 2008
DAI Xiangyuan, MPhil, graduated 2006
CHENG Kit Hung (David), MPhil, graduated 2005