Browsing 15 Commerce, Management, Tourism and Services by Author "Zhang Shichao"

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  • Browsing 15 Commerce, Management, Tourism and Services by Author

Browsing 15 Commerce, Management, Tourism and Services by Author "Zhang Shichao"

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  • Database classification for multi-database mining 
    Wu Xindong; Zhang Chengqi; Zhang Shichao (Elsevier Science, 2003)
    Many large organizations have multiple databases distributed in different branches, and therefore multi-database mining is an important task for data mining. To reduce the search cost in the data from all databases, we ...
  • Identifying Global Exceptional Patterns in multi-database mining 
    Liu Meiling; Nie Wenlong; Zhang Chengqi; Zhang Shichao (Institute of Electrical and Electronics Engineers, 2004)
    In multi-database mining, there can be many local patterns (frequent itemsets or association rules) in each database. At the end of multi-database mining, it is necessary to analyze these local patterns to gain global ...
  • Multi-database mining 
    Zhang Shichao; Wu Xindong; Zhang Chengqi (Institute of Electrical and Electronics Engineers, 2003)
    Multi-database mining is an important research area because (1) there is an urgent need for analyzing data in different sources, (2) there are essential differences between mono- and multi-database mining, and (3) there ...
  • Post-mining: maintenance of Association rules by weighting 
    Zhang Chengqi; Yan Xiaowei; Zhang Shichao (Elsevier, 2005)
    This paper proposes a new strategy for maintaining association rules in dynamic databases. This method uses weighting technique to highlight new data. Our approach is novel in that recently added transactions are given ...