Hechen Liu    Ph.D.


        I received my Ph.D. degree in Computer Engineering in the Department of Computer and Information Science and Engineering, University of Florida in 2012. My advisor is Professor. Markus Schneider.I received my Bachelor's degree in Harbin Institute of Technology, China in 2007. I am interested in spatial databases and GIS, spatio-temporal databases, and spatio-temporal data mining.

Address: E457 CSE Building, University of Florida
               Gainesville, FL 32611, USA
Email: heliu [At] cise [Dot] ufl [Dot] edu



        Ph.D    Computer Engineering              University of Florida       2007 - 2012
        B.S.                    Harbin Institute of Technology  
Harbin, China               2003 - 2007
        Visiting Student   University of Hong Kong            Hong Kong                   Aug. 2005-Jan. 2006
    Teaching Experience
  • COP5725: Database Management Systems, Fall 2011, Spring 2010
  • CIS3023: Programming Fundamentals for CIS Majors II (Java), Spring 2011
    Research Interest

       GIS, spatial database, spatio-temporal database, spatio-temporal data mining.

    Programming Skills

       Java, C++/C, C#, ASP.NET, PHP, JavaScript, SQL, R, Matlab


    Journal Articles

     1. Hechen Liu & Markus Schneider. Detecting the Topological Development in a Complex Moving Region. Journal of Multimedia Processing and Technologies (JMPT), 1(3), 160-180, 2010.

    Conference Papers

     7. Hechen Liu, Ling-Yin We, Yu Zheng, Markus Schneider, Wen-Chih Peng. Route Discovery from Mining Uncertain Trajectories. Demo Paper, to appear in IEEE International Conference on Data Mining (ICDM), Vancouver, BC, Canada, 2011.

     6. Hechen Liu & Markus Schneider. Balloon: Representing and Querying the Near Future Movement of Predictive Moving Objects. International Workshop on Spatial Semantics And Ontologies (SSO), in Conjunction with ACM SIGSPATIAL GIS. Chicago, IL, 2011

     5. Tao Chen, Hechen Liu & Markus Schneider. Computing the Cardinal Direction Development between Moving Points in Spatio-temporal Databases. 12th Int. Symp. on Spatial and Temporal Databases (SSTD), 2011. [pdf]

     4. Hechen Liu & Markus Schneider. Querying Moving Objects with Uncertainty in Spatio-temporal Databases. 16th Int. Conf. on Database Systems for Advanced Applications (DASFAA), 2011 . Acceptance Rate: 24% (54 out of 225). [pdf]

     3. Hechen Liu & Markus Schneider. Tracking Continuous Topology Changes of Complex Moving Regions. 26th Annual ACM Symp. on Applied Computing (ACM SAC), 2011. [pdf]

     2. Tao Chen, Hechen Liu & Markus Schneider. Evaluation of Cardinal Direction Developments between Moving Points. 18th ACM SIGSPATIAL Int. Conf. on Advances in Geographic Information Systems (ACM SIGSPATIAL GIS),430-433, 2010. [pdf]

     1. Virupaksha Kanjilal, Hechen Liu & Markus Schneider. Plateau Regions: An Implementation Concept for Fuzzy Regions in Spatial Databases and GIS. 13th Int. Conf. on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU), 624-633, 2010. [pdf]

    Technical Reports

          1. Markus Schneider, Shen-Shyang Ho, Malvika Agrawal, Tao Chen, Hechen Liu & Ganesh Viswanathan. A Moving Objects Database Infrastructure for Hurricane Research: Data Integration and Complex Object Management. NASA Earth Science Technology Forum (ESTF), 2011.

    My DBLP page here



        Summer Intern       Microsoft Research Asia (MSRA)                   May. 2011 - Aug. 2011


             I am a gourmet. I like to taste all kinds of yummy food and also enjoy cooking. I like traveling and have been to 17 our of 32 provinces in China.    



   Research Collaborators

         Dr. Yu Zheng       Researcher @ MSRA
         Dr. Xing Xie        Lead Researcher @ MSRA
         Dr.Shen-Shyang Ho        Assistant Professor @ Nanyang Technological University

   Gators (University of Florida Alumni)

         Dr. Zhuo Huang
         Dr. Liangliang Jiang  Assistant Professor @ Lingnan University, Hong Kong.
         Dr. Meizhu Liu
         Dr. Wenjie Yuan
         Dr. Ganesh Viswanathan
         Dr. Tao Li
         Xiaoke Qin
         Jie Fan
         Lin Qi
         Kun Li
         Dr. Pan Li    Assistant Professor @ Mississipi State University

   My Friends

         Dr. Zhangjin Huang   Associate professor @ University of Science and Technology China.
         Qiyan Wang       PhD candidate @ University of Illinois Urbana-Champaign.
         Hongliang Fei     PhD candidate @ University of Kansas.
         Dr. Yajun Wang       Associate Researcher @ Microsoft Research Asia.
         Jing Yuan          PhD candidate @ USTC, intern @ MSRA.



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Last Update: 08/17/2012