Journal Editor

• Data & Knowledge Engineering, starting from April 2018. (Editor)
• Journal of Information Science and Engineering (JISE), starting from March 2016.
• GeoInformatica: An International Journal on Advances of Computer Science for Geographic Information System, starting from January 2015. (Editor)
• ACM Transactions on Spatial Algorithms and Systems, Associate Editor, starting from July 2015. (Editor)
• IEEE Transactions on Big Data, starting from November 2021. (Editor)
• Frontiers in Big Data, Data Mining and Management, starting from June 2022.
• SSTD Endowment

2025

• SPC: The 29th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Sydney Australia, June 10-13, 2025.

2024

• General Co-Chair: The 2024 IEEE International Conference on Big Data (IEEE BigData 2024), Washington DC, Dec. 15-18, 2024.
• Area Chair: The IEEE International Conference on Data Mining, Abu Dhabi, UAE, Dec 9-12, 2024.
• Vice Chair: The 32nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2024).
• SPC: The 2024 SIAM International Conference on Data Mining (SDM24), Houston, TX, April 18 - 20, 2024.
• SPC: The 28th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Taipei, Taiwan, May 7-10, 2024.
• SPC: The 30th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), Barcelona, Spain, Aug. 25-29, 2024.
• SPC: The 33rd ACM International Conference on Information and Knowledge Management, Boise, Idaho, Oct. 21-25, 2024.
• PC: The 38th AAAI Conference on Artificial Intelligence (AAAI-24), Vancouver, Canada, 2024.
• GPC: Data and Information Qualifier Exam, 2023-2024

2023

• General Co-Chair: IEEE BigData Workshop Data-Centric AI: Shifting Research Focus From Model to Data, Sorrento, Italy, December 15, 2023.
• Area Chair: The 23rd IEEE International Conference on Data Mining (IEEE ICDM), Dec. 1-4, Shanghai, China, 2023.
• SPC: The 27th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Osaka, Japan, May 25-28, 2023.
• SPC: The 29th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), Long Beach, CA, Aug. 6-10, 2023.
• PC: The Thirty-Seventh AAAI Conference on Artificial Intelligence (AAAI-23), 2023.
• PC: The 2023 IEEE International Conference on Big Data (IEEE BigData), Sorrento, Italy, December 15-18, 2023.

2022

• PC: The Thirty-Sixth AAAI Conference on Artificial Intelligence (AAAI-21), Feb. 22-March 1, 2022.
• SPC: The 27th International Conference on Database Systems for Advanced Applications (DASFAA-2022), Hyderabad, India, April 11-14, 2022.
• SPC: the 26th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Chengdu, China, May 16-19, 2022.
• PC: The 28th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), Washington DC, August 14-18, 2022.
• PC: The 2022 IEEE International Conference on Big Data (IEEE BigData), Osaka, Japan, December 17-20, 2022.
• PC: The 22nd IEEE International Conference on Data Mining (IEEE ICDM), Nov. 28 - Dec. 1, Orlando, FL, 2022.

2021

• General Co-Chair: The 29th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2021),  Nov. 2 - Nov. 5, 2021.
• SPC: The 26th International Conference on Database Systems for Advanced Applications (DASFAA), April 11-14, 2021.
• SPC: The 25th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Delhi, India, May 11-14, 2021.
• PC: The 27th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), Singapore, August 14-18, 2021.
• PC: The 21st IEEE International Conference on Data Mining (IEEE ICDM), Auckland, New Zealand, Dec. 7-10, 2021.
• GPC: Data and Information Qualifier Exam Committee Chair (D&I Exam)

2020

• General Co-Chair: The 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2020),  Nov. 3 - Nov. 6, 2020.
• Vice Chair, Session Chair: The 36th IEEE International Conference on Data Engineering 2020, Dallas Texas, April 20-24, 2020.  
• PC: The Thirty-Fourth AAAI Conference on Artificial Intelligence (AAAI-20), New York, New York, Feb. 7-12, 2020.
• PC: The 29th International Joint Conference on Artificial Intelligence (IJCAI-2020), Yokohama, Japan, July 11-17, 2020.
• PC: The 26th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), San Diego, CA, August 21-26, 2020.
• PC: The 20th IEEE International Conference on Data Mining (IEEE ICDM), Sorrento, Italy, Nov. 17-20, 2020.
• PC: The 2020 IEEE International Conference on Big Data (IEEE BigData), December 10-13, 2020.
• GPC: Data and Information Qualifier Exam Committee Chair (D&I Exam)

2019

• Senior PC: The 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS 2019), Chicago, IL, Nov. 5 - Nov. 8, 2019.
• Senior PC: The 28th ACM International Conference on Information and Knowledge Management (CIKM-2019), Beijing China, Nov. 3 - Nov. 7, 2019.
• PC: The 2019 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2019), Vancouver, Canada, August 27-30, 2019.
• PC: The Thirty-Third AAAI Conference on Artificial Intelligence (AAAI-19), Honolulu, Hawaii, Jan. 27-Feb. 1, 2019.
• PC: The 28th International Joint Conference on Artificial Intelligence (IJCAI-2019), Macao, China, August 10-16, 2019.
• PC: The 19th IEEE International Conference on Data Mining (IEEE ICDM), Beijing, China, Nov. 8-11, 2019.
• PC: The 25th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), Anchorage, Alaska, August 4-8, 2019.

2018

• Area Chair: The 18th IEEE International Conference on Data Mining (ICDM), Singapore, Nov. 17-20, 2018.
• Senior PC: The 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS 2018), Seattle, WA, Nov. 6 - Nov. 9, 2018.
• PC: The 2018 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2018), Barcelona, Spain, August 28-31, 2018
• PC: The Thirty-Second AAAI Conference on Artificial Intelligence (AAAI-18), New Orleans, Louisiana, Feb. 2–7, 2018.
• PC: The 27th International Joint Conference on Artificial Intelligence (IJCAI-2018), Stockholm, Sweden, July 13-19, 2018.
• PC: The 24th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), Halifax, London, UK, Aug. 19-23, 2018.
• GPC: Data and Information Qualifier Exam Committee (D&I Exam)

2017

• General Chair: The 15th Intl. Symposium on Spatial & Temporal Databases, Arlington, VA, Aug. 21-23, 2017. (SSTD)
• Senior PC: The 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS 2017), Redondo Beach, CA, Nov. 7 - Nov. 10, 2017.
• Area Chair: The 29th International Conference on Tools with Artificial Intelligence (ICTAI), Boston, MA, Nov. 6-8, 2017.
• PC: The 17th IEEE International Conference on Data Mining (IEEE ICDM), New Orleans, LA, Nov. 18-21, 2017.
• PC: The 2017 SIAM International Conference on Data Mining (SDM), Houston, TX, April 27-29, 2017.
• PC: The 23rd ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), Halifax, Nova Scotia, Canada, Aug. 13-17, 2017.
• GPC: Data and Information Qualifier Exam Committee (D&I Exam)

2016

• Senior PC: The 24th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems (ACM GIS), San Francisco, CA, Oct. 31- Nov. 3, 2016.
• PC: The 25th ACM International Conference on Information and Knowledge Management (CIKM), Indianapolis, IN, Oct. 24-28, 2016.
• PC: The 16th IEEE International Conference on Data Mining (IEEE ICDM), Barcelona, Spain, Dec. 13-15, 2016.
• PC: The 22nd ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining (KDD), San Francisco, CA, Aug. 13-17, 2016.
• PC: The 2016 SIAM International Conference on Data Mining (SDM), Miami, Florida, May 5-7, 2016.
• PC: The 2nd International Conference on Geographical Information Systems Theory, Applications and Management (GISTAM), Rome, Italy, April, 26-27, 2016.
• GPC: Data and Information Qualifier Exam Committee Chair (D&I Exam)

2015

• Senior PC: The 23th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems (ACM GIS), Seattle, WA, Nov. 3-6, 2015.
• PC: The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML-PKDD), 2015.
• PC: IEEE International Symposium on Circuits & Systems (ISCAS 2015), Lisbon, Portugal, May 24-27, 2015.
• PC: The 1st International Workshop on Spatiotemporal Computing (IWSC), Fairfax, Virginia, July 13-15, 2015.
• PC: The 16th IEEE International Conference on Mobile Data Management  (MDM 2015), Pittsburg, USA.
• PC:
• PC: The 1st International Conference on Geographical Information Systems Theory, Applications and Management (GISTAM), Barcelona, Spain, April 28-30, 2015.
• PC: The Inaugural Workshop on Digital Forensics Experiments and Results, Jan. 7, 2015, George Mason University.
• PC: The 15th IEEE International Conference on Data Mining (ICDM), Atlantic City, NJ, Nov. 14-17, 2015.
• PC: The 27th International Conference on Tools with Artificial Intelligence (ICTAI), Vietri sul Mare, Italy, Nov. 9-11, 2015.
• PC: The 2015 SIAM International Conference on Data Mining (SDM), Vancouver, Canada, April 30-May 2, 2015.
• PC: The 14th International Symposium on Spatial and Temporal Databases (SSTD), Seoul, South Korea, August 26-28, 2015.
• GPC: Data and Information Qualifier Exam Committee Chair (D&I Exam)

2014

• Vice Chair: ACM Special Interest Group on Spatial Information (SIG-SPATIAL)
• Area Chair: The 26th International Conference on Tools with Artificial Intelligence (ICTAI), Limassol, Cyprus, Nov. 10-12, 2014.
• PC: The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML-PKDD), Nancy, France, Sep. 15-19, 2014.
• PC: The 22th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems (ACM GIS), Dallas, TX, Nov. 4-7, 2014.
• PC: The 14th IEEE International Conference on Data Mining (ICDM), Shenzhen, China, December 14-17, 2014.
• PC: The 20th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining, New York City, Aug. 24-27, 2014.
• PC: The 15th IEEE International Conference on Mobile Data Management (MDM), Brisbane, Australia, July 14-18, 2014.
• PC: The 18th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Tainan, Taiwan, May 13-16, 2014.
• PC: The 2014 SIAM International Conference on Data Mining (SDM), Philadelphia, PA, April 24-26, 2014.
• GPC: Data and Information Qualifier Exam Committee Chair (D&I Exam)

2013

• Vice Chair: ACM Special Interest Group on Spatial Information (SIG-SPATIAL)
• Area Chair: The 25th International Conference on Tools with Artificial Intelligence (ICTAI), Washington DC, Nov. 4-6, 2013.
• PC: The 21th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems (ACM GIS), Orlando, Florida, Nov. 5-8, 2013. (GIS-13)
• PC: The 13th IEEE International Conference on Data Mining (ICDM), Dallas, Texas, December 7-10, 2013.
• PC: ACM International Conference on Information and Knowledge Management (CIKM 2013), Burlingame, CA, Oct. 27-Nov. 1, 2013.
• PC: The 17th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Gold Coast, Australia, April 14-17, 2013. (PAKDD-13)
• PC: The 5th FTRA International Conference on Computer Science and its Applications, Danang, Vietnam, December 18 - 21, 2013. (CSA-13)
• PC: The 2013 SIAM International Conference on Data Mining, Austin, Texas, May 2-4, 2013. (SIAM-DM-13)
• GPC: Data and Information Qualifier Exam Committee Chair (D&I Exam)

2012

• Vice Chair: ACM Special Interest Group on Spatial Information (SIG-SPATIAL).
• Associate Editor: The 15th International IEEE Conference on Intelligent Transportation Systems, Anchorage, AK, Sep. 16-19, 2012.
• PC: The 18th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining, Beijing, China, Aug. 12-16, 2011. (KDD-12)
• PC: The 16th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Kuala Lumpur, Malaysia, May 29-June 1, 2012. (PAKDD-12)
• PC: The 2012 SIAM International Conference on Data Mining, Anaheim, CA, April 26-April 28, 2012. (SIAM-DM-12)
• PC: The 20th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems, Redondo Beach, CA, Nov. 6-9, 2012. (GIS-12)
• PC: The 2012 IEEE International Conference on Systems, Man, and Cybernetics (IEEE SMC 2012), Oct. 14-17, Seoul, Korea, 2012.
• GPC: Data and Information Qualifier Exam Committee Chair. (D&I Exam)

2011

• Secretary: ACM Special Interest Group on Spatial Information (SIG-SPATIAL).
• PC: The 22th Intl. Conf. on Database and Expert Systems Applications (DEXA), Toulouse, France, Aug. 29-Sep. 2, 2011. (DEXA-11)
• PC: The 19th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems, Chicago, Illinois, Nov. 1-4, 2011. (GIS-11)
• PC: The 20th ACM International Conference on Information and Knowledge Management, Glasgow, UK, Oct. 24-28, 2011. (CIKM-11)
• PC: The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Athens, Greece, Sep. 5-9, 2011. (ECML PKDD-2011)
• PC: The 11th IEEE International Conference on Data Mining, Vancouver, Canada, December 11-14, 2011. (ICDM-2011)
• PC: The 17th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining, San Diego, CA, Aug. 21-24, 2011. (KDD-11, Review)
• PC: The 15th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Shenzhen, China, May 24-27, 2011. (PAKDD-11, Review)
• PC: The 2011 SIAM International Conference on Data Mining, Phoenix, Arizona, April 28-April 30, 2011. (SIAM-DM-11, Review)
• PC: The 3rd International Conference on Computer Science and its Applications, Jeju, Korea, Dec. 12-15, 2011. (CSA-2011)
• PC: The 3rd ACM SIGSPATIAL International Workshop on Location-Based Social Networks, Nov. 1, 2011. (LBSN-2011)
• GPC: Data and Information Qualifier Exam Committee Chair. (Qualifier Exam, D&I Exam)

2010

• Secretary: ACM Special Interest Group on Spatial Information (SIG-SPATIAL).
• Publicity Chair & PC: The 18th ACM SIGSPATIAL Intl. Conference on Advances in Geographic Information Systems, San Jose, CA, Nov. 2-5, 2010. (GIS-10)
• PC: The 19th ACM International Conference on Information and Knowledge Management, Toronto, Canada, Oct. 26-30, 2010. (CIKM-10)
• PC: The 21th International Conference on Database and Expert Systems Applications, Bilbao, Spain, Aug. 30 - Spt. 3, 2010. (DEXA-10)
• PC: The 16th ACM SIGKDD Intl. Conference on Knowledge Discovery and Data Mining, Washington, DC, July 25-28, 2010. (KDD-10)
• PC: The 10th IEEE International Conference on Data Mining, Sydney, Australia, December 13-17, 2010. (ICDM-2010)
• PC: The 14th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Hyderabad, India, June 21-24, 2010. (PAKDD-10)
• PC: The Asia-Pacific Signal and Information Processing Association (APSIPA) Annual Summit and Conference, Biopolis, Singapore, Dec. 14-17, 2010. (APSIPA-10)
• GPC: Data and Information Qualifier Exam Committee Chair. (Qualifier Exam, D&I Exam)

2009

• Secretary: ACM Special Interest Group on Spatial Information (SIG-SPATIAL).
• General Co-Chair, The 17th ACM Intl. Conf. on Advances in Geographic Information Systems, Seattle, Washington, Nov. 4-6, 2009. (ACM GIS-09)
• Finance Chair: The 25th IEEE International Conference on Data Engineering, Shanghai, China, March 29- April 2, 2009. (ICDE-09, TMRF)
• Sponsorship Chair: The 18th ACM Conf. on Information and Knowledge Management, Hong Kong, China, Nov. 2-6, 2009. (CIKM-2009)
• Steering Committee: The 2009 International Workshop on Spatial and Spatiotemporal Data Mining, Miami, Florida, Dec. 6. (SSTDM-2009)
• PC: The 13th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Bangkok, Thailand, April 27-30, 2009. (PAKDD-09)
• PC: The 15th ACM SIGKDD Intl Conf. on Knowledge Discovery and Data Mining, Paris, France, June 28-July 1, 2009. (KDD-09, Review)
• PC: The 3rd International Workshop on Knowledge Discovery from Sensor Data (SensorKDD-2009)
• PC: The 2009 IEEE International Conference on Data Mining, Miami, Florida, December 6-9, 2009. (ICDM-2009, review)
• PC: The 2009 SIAM International Conference on Data Mining, Sparks, Nevada, April 30-May 2, 2009. (SIAM-DM-09)
• PC: The 20th Intl. Conf. on Database and Expert Systems Applications (DEXA), Linz, Austria, Aug. 31-Sep. 4, 2009. (DEXA-09)
• PC: The Asia-Pacific Signal and Information Processing Association (APSIPA) Annual Summit and Conference, Sapporo, Japan, Oct. 5-7, 2009. (APSIPA-09)
• PC: The International Conference on Complex, Intelligent and Software Intensive Systems, Fukuoka, Japan, March 16-19, 2009. (CISIS-09)
• PC: The 4th International Conference on Frontier of Computer Science and Technology, Shanghai, China, December 17-19, 2009 (FCST-09)
  
• GPC: Data and Information Qualifier Exam Committee Chair. (Qualifier Exam, D&I Exam)

2008

• Secretary: ACM Special Interest Group on Spatial Information (SIGSPATIAL)
• General Chair: The 20th IEEE International Conference on Tools with Artificial Intelligence, Dayton, Ohio, Nov. 3-5. (ICTAI-08)
• Publicity Chair & PC: The 16th ACM International Conference on Advances in Geographic Information Systems, Irvine, CA, Nov. 5-7, 2008. (ACM GIS 08)(Access Statistics)
• Steering Committee: The 2008 International Workshop on Spatial and Spatiotemporal Data Mining, Pisa, Italy, Dec. 15. (SSTDM-2008)
• PC: The 14th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, Las Vegas, NV, August 24-27. (KDD, Review)
• PC: The 2nd International Workshop on Knowledge Discovery from Sensor Data, Las Vegas, NV, August 24-27. (Sensor-KDD)
  
• PC: The 17th ACM Conference on Information and Knowledge Management, Napa Valley, CA, Oct. 26-30, (CIKM-2008, Review)
• PC: The 2008 IEEE International Conference on Data Mining, Pisa, Italy, December 15-19. (ICDM-2008, Review)
• PC: The 2008 IEEE International Conference on Information Reuse and Integration. (IRI-2008, Review)
• PC: The 12th Pacific-Asia Conference on Knowledge Discovery and Data Mining, Osaka, Japan, May 20-23. (PAKDD-2008, Review)
• PC: The 2008 SIAM International Conference on Data Mining, Atlanta, Georgia, April 24-26. (SIAM-2008)
• GPC: Data and Information Qualifier Exam Committee Chair. (Qualifier Exam, D&I Exam)

2007

• Program Chair: The 2007 International Workshop on Spatial and Spatial-Temporal Data Mining, Omaha, NE, Oct 28. (SSTDM-2007, Review)
• Publicity Chair & PC: The 15th ACM International Symposium on Advances in Geographic Information Systems, Seattle, Washington, Nov 7-9. (ACM GIS 07)
• PC: The 13th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, San Jose, CA, August 12-15. (KDD, Review, Review)
• PC: Spatial and Spatio-Temporal Data Management for Visualization, Analysis and Mining, Bangkok, Thailand, April 9. (SSTDM-VAM, DASFAA-2007)
• PC: The 2007 SIAM International Conference on Data Mining, April 26-28. (SIAM-2007, Review)
• PC: The 2007 IEEE International Conference on Data Mining, October 28-31. (ICDM-2007, Review)
• PC: The 19th IEEE International Conference on Tools with Artificial Intelligence, Patras, Greece, Oct 29-31. (ICTAI-07, Review)
• PC: The 11th Pacific-Asia Conference on Knowledge Discovery and Data Mining, May 22-25. (PAKDD 2007, Review)
• PC: The 2007 IEEE International Conference on Information Reuse and Integration. (IRI-2007, Review)
• GPC: Data and Information Qualifier Exam Committee Chair (Qualifier Exam, D&I Exam)

2006

• Program Chair: The 18th IEEE International Conference on Tools with Artificial Intelligence, Washington, DC, Nov 13-15. (ICTAI 06, CFP, START)
• Local Chair: Conference on Information and Knowledge Management.(CIKM-06) (CFP) (Program)(Wiki)
• PC: The 2006 IEEE International Conference on Data Mining (ICDM-2006, Review)
• PC: The Fifth IEEE International Conference on Machine Learning and Applications (ICMLA-2006, Review)
• PC: The 2006 IEEE International Conference on Information Reuse and Integration (IRI-2006)
• PC: IEEE Joint Conference on E-Commerce Technology (CEC'06) and Enterprise Computing, E-Commerce and E-Services (EEE'06).
• GPC: Data and Information Qualifier Exam Committee Chair (Qualifier Exam, D&I Exam)
• Conferences: ACM-GIS-06, SIAM DM, Geoinformatics-06

2005

• PC: The ACM International Symposium on Advances in Geographic Information Systems (ACM-GIS, Review)
• PC: The IEEE International Conference on Information Reuse and Integration (IRI)
• PC: The IEEE International Conference on Tools with Artificial Intelligence (ICTAI)
• GPC: Data and Information Qualifier Exam Committee Chair (Qualifier Exam, D&I Exam)
• VT NVD IA Seminar (Seminar 2005)
• Program Chair: JCIS WDM (Review)
• Seminar coordinator: CS IA Seminar, CS SDM Seminar

2004

• PC : The Fourth IEEE International Conference on Data Mining (ICDM-04, Review)
• PC : The Second ACM International Workshop on Multimedia Databases (ACM-MMDB 2004)
• PC : The 12th ACM International Symposium on Advances in Geographic Information Systems (ACM-GIS-04)
• PC : The 28th Annual International Computer Software and Applications Conference(COMPSAC), Workshop on Geographic and Biological Data Management (GBDM 04') (COMPSAC-04)
• PC : IEEE International Conference on Engineering of Complex Computer Systems (ICECCS-04, Review)
• PC : The 16th IEEE International Conference on Tools with Artificial Intelligence (ICTAI-04)
• PC : The 2004 IEEE International Conference on Information Reuse and Integration (IEEE IRI-2004)
• SC : The 2004 International Computer Symposium (TAIPEI ICS 2004)
• Panel: NSF Information and Data Management - (IDM 04)

• GPC: Data and Information Qualifier Exam Committee Chair (Qualifier Exam, D&I Exam)
• VT NVD IA Seminar (Seminar 2004)

2003

• Publication Chair (Session Chair): The 15th IEEE International Conference on Tools with Artificial Intelligence (ICTAI-03)
• PC (Session Chair): The 11th ACM International Symposium on Advances in Geographic Information Systems (ACM GIS-03)
• PC (Session Chair): The Third IEEE International Conference on Data Mining (ICDM-2003)
• PC : The 2003 International Conference on Parallel Processing (ICPP-03)
• PC : The First ACM International Workshop on Multimedia Databases (ACM MMDB-03)
• PC : The 2003 IEEE International Conference on Information Reuse and Integration (IRI-03)
• Panel : NSF Information Technology Research (ITR)

• VT CS NVC Seminar Chair (Seminar 2003)

2002

• PC: The 14th IEEE International Conference on Tools with Artificial Intelligence (ICTAI-02)

Journal Paper Review

2007

• ACM Transactions on Knowledge Discovery from Data
• Data and Knowledge Engineering Journal (DKE)
• GeoInformatica: An International Journal on Advances of Computer Science for Geographic Information System
• International Journal of Pattern Recognition and Artificial Intelligence

2006

• IEEE Transactions on Knowledge and Data Engineering
• Data Science Journal
• Data and Knowledge Engineering Journal (DKE)
• Computer Vision and Image Understanding
• IEE Proceedings on Vision, Image, and Signal Processing
• International Journal of Pattern Recognition and Artificial Intelligence
• International Journal of Geographical Information Science
• International Journal of Knowledge and Information Systems (KAIS)
• International Journal of Pattern Recognition and Artificial Intelligence (IJPRAI)
• Journal of Computer Science and Technology

2005

• Data and Knowledge Engineering Journal (DKE)
• GeoInformatica: An International Journal on Advances of Computer Science for Geographic Information System
• International Journal of Knowledge and Information Systems (KAIS)
• Information Sciences, Informatics and Computer Science Intelligent Systems Applications, An International Journal
• Geographic Information Sciences
• International Journal of Knowledge and Information Systems (KAIS)
• Transactions in GIS
• IEEE Transactions on Knowledge and Data Engineering
• The VLDB Journal The International Journal on Very Large Data Bases

2004

• The International Journal for Computers and their Applications
• International Journal of Knowledge and Information Systems (KAIS)
• Journal of Computing on Dependable Wireless Sensor Networks
• IEEE Transactions on Knowledge and Data Engineering
• IEEE Transactions on Multimedia
• International Journal of Mathematical and Computer Modelling
• IEEE Transactions on Systems, Man and Cybernetics
• Multimedia Tools and Application Journal, Kluwer
• INFORMS JOC (Pubsonline)
• Information Sciences, Informatics and Computer Science Intelligent Systems Applications, An International Journal
• Special Issue of Elsevier Journal of Computer Communications on Dependable Wireless Sensor Networks
• IEEE Transactions on Software Engineering

2003

• Computer Journal, Oxford University Press
• International Journal of Mathematical and Computer Modeling
• International Journal of Information Technology & Decision Making
• Journal of Geographic Information and Decision Analysis