Hechen Liu Ph.D.

Biography

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

News

On November 30th, 2012, I passed my dissertation defense with the title of "Modeling, Representing and Querying the Uncertainty of Moving Objects in Spatio-Temporal Databases". Cheers!

November 3rd, 2012, I attended ACM SIGSPATIAL GIS conference in Redondo Beach, CA.

On April 30th, 2012, I achieved the PhD candidacy.

I attended ICDM 11 in Vancouver, Canada from Dec. 10th to Dec. 14th, 2011.

From May to August 2011, I visited Microsoft Research Asia (MSRA) in Beijing for a summer internship, in Web Search and Mining (WSM) Group, under the supervision of Dr. Yu Zheng and Dr. Xing Xie.

Academic

Education
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
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Publication

    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

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Experience

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

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.

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Links

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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