Updated: Feb 18, 2009

Research Interests & Projects:

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Cloud Data Management
Technology advances in communications, computation, and storage result in huge collections of data, capturing information of value to business, science, government, and society. Data volumes are currently growing faster than Moore's law. Looking forward, the exponential growth is not likely to stop. The huge size of data is imposing big challenges on infrastructure for data storage which can achieve economical scaling to even more than Petabyte, massively parallel query execution, and facilities for analytical processing. Meanwhile, the rise of large data centers and cluster computers has created a new business model, cloud-based computing, where businesses and individuals can rent storage and computing capacity, rather than making the large capital investments needed to construct and provision large-scale computer installations. Cloud-based data storage and management is a rapidly expanding business.

Flash-based Database
With the development of electronic technology, flash memory emerges as new data storage and has been widely used in embedded and portable devices such as mobile communication, industry control, Aeronautics & Astronautics and Notebook. With the rapid increase of the capacity of flash memory, data management on flash becomes a new great challenge, which incurs researches to promote the significant development on flash-based database and application, as well as the framework and structure of flash-based database. This project researches fundamental theory and design principles of flash-based database including a series of key problems such as system architecture, storage management and indexing, query processing , transaction processing.

Web Data Management

The rapid development of World Wide Web has dramatically changed the way in which information is managed and accessed. The information in Web is increasing at a striking speed. At present, there are more than 7,500 terabytes (or 550 billion web pages) of information in Web. Web information has covered all domains of human activities. This opened the opportunity for users to benefit from the available data. So Web is being concerned more and more. This brings the following projects:

XML Data Management

Extensible Markup Language (XML) is a simple, very flexible text format derived from SGML (ISO 8879), originally designed to meet the challenges of large-scale electronic publishing. As a de facto standard of web data representation and exchange, many applications have been built on XML, for example, stock exchange, news subscribe, sensor network and so on. XML has made a great impact on Internet information management and integration. These changes have brought out many big challenges for managing semi-structured XML data.


Mobile Data Management
Mobile data management, which our lab focuses on, mainly includes mobile database techniques, and moving objects data management. Mobile database techniques include mobile transaction management, data caching and replication, synchronization and publication, etc. Moving objects data management includes modeling and tracking of dynamic location information, uncertainty management, spatio-temporal data access languages, indexing and scalability issues, location-dependent query processing, data mining (including traffic and location prediction), location dissemination, location privacy preserving, location fusion and synchronization.


Completed Systems:


Granted Projects:

  • 2009-2012 Flash-based Database Research
    Granted by Key Project of the Natural Science Foundation of China(NSFC) under grant number 60833005
  • 2007-2009 Large Scale Dataspace Management Techniques
    Granted by the National High-Tech Research and Development Plan of China under grant number 2007AA01Z155
  • 2006-2008 Network-Constrainted Moving Objects Management (Principle Investigator)
    Granted by the Natural Science Foundation of China(NSFC) under grant number 60573091

  • 2006-2007 Supporting Context in XML Data Management Systems (Principle Investigator)
    Granted by China-Greece international cooperation project
  • 2006-2007 Network-Constrainted Moving Objects Management (Principle Investigator)
    Granted by China-France PRA project
  • 2005 Ontology based Data Management (Principle Investigator)
    Grangted by IBM University project
  • 2005 Road Network Moving Objects Management (Principle Investigator)
    Granted by CNRS/NSFC
  • 2004-2007 XML Data Management (Principle Investigator)
    Granted by Program for New Century Excellent Talents in University(NCET)
  • 2002-2003 Moving Objects Databases (Principle Investigator)
    Granted by the Key Project of Chinese Ministry of Education (No.03044) and
    the Excellent Young Teachers Program of M0E,P.R.C (EYTP)
  • 2003-2005 Web Data Extraction and Integration (Principle Investigator)
    Granted by the Natural Science Foundation of China(NSFC) under grant number 60273018
  • 2002-2005 Web Service based Data Integration (Principle investigator)
    Granted by the 863 High Technology Foundation of China under grant number 2002AA116030
  • 1999-2003 Embedded Mobile Database System (Principle Investigator)
    Granted by 863 project and Natural Science Foundation of China(NSFC) under grant number 60073014
  • 1997-1999 Chinese Database System and Its interfaces(Co-Principle Investigator)
    Granted by National Science Foundation of China
  • 1996-1998 Database Management System Implementation: Security (Chief Designer)
    Granted by National Ninth Five Year Plan for Science and Technology
  • 1994-1996 Parallel Database System. (Chief Designer)
    Granted by 863 Project
  • 1991-1996 Database Management System Implementation: Query Processing(Chief Designer)
    Granted by National Eighth Five Year Plan for Science and Technology
  • 1990-1991 Relational database System Analysis (Chief Designer)
    Granted by National Seventh Five Year Plan for Science and Technology


Patents & Software Products:



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