Big Data Analysis
With the emergence of Big Data, it does not only bring the rapid growth of data size, but also brings a great challenge to the traditional data management and analysis technology. Traditional data management and analysis techniques, based on relational databases, have become increasingly difficult to meet the demand of practical applications. 《Nature》points out that the need for big data to analyze and exploit the underlying value behind it has been urgent. We study real-time analysis of Big Data as the starting point, mainly from the data characteristics, analysis platform and the real case, including streaming data, in-memory computing and scientific data analysis, etc. For stream data, we mainly study the efficient data operation and resource allocation. The in-memory computation mainly focuses on the computational acceleration by optimizing the computer architecture layer. The multi-source astronomical data stream is used to study the real-time analysis of scientific events that occur by a small probability, and the storage of large-scale historical data, etc.


Big Data Privacy
With the high-speed development of information and network, big data has become a hot topic in both the academic and industrial research, which is regarded as a new revolution in the field of Information Technology. However, it brings about not only significant economic and social benefits, but also great risks and challenges on individuals’privacy protection and data security. Directly releasing and analyzing such data may breach individuals’ privacy. Currently, privacy related with big data has been considered as one of the greatest problems in many applications.

Big Data Fusion

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:

Social Computing
The development and popularization of information technology and Internet had a profound impact on people's social interaction model, and also brought a great change in computing technology. The research of information science and technology pays attention to specific technical issues in the past , but now takes advantage of computing methods to simulate and analyze social theory and social issues on a higher level, which is a cross research between computing science and social science . In recent years, with the rapid rise and development, social computing receives great attention from domestic or foreign computer science and related interdisciplinary areas. At the same time, in order to effectively deal with new social problems and challenges caused by complex and dynamic changes in the network, we need to develop the basic theory, modeling, analysis and calculation methods of social computing urgently.

Granted Projects:
  • 2011-2016 Key Problems Research on Social Computing
    Granted by Research Funds of Renmin University under grant number 11XNL010
  • 2011-2013 Information Credibility on the Web
    Granted by the Natural Science Foundation of China(NSFC) under grant number 11XNL010
  • 2010-2012 Cloud based Large Scale Data Management(Principle Investigator)
    Granted by IBM Open Collaborative Research (OCR)
  • 2010-2011 Cloud based Database System(Principle Investigator)
    Granted by MSRA Faculty Award
  • 2008-2011 Deep Web Data Integration Research
    Granted by the Ph.D. Programs Foundation of Ministry of Education of China under grant number 200800020002
  • 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
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