Browsing Closed by Author "Qin, Zhenxing"

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Browsing Closed by Author "Qin, Zhenxing"

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  • Qin, Zhenxing; Zhang, Chengqi; Wang, Tao; Zhang, Shichao (Springer-Verlag, 2010)
    Cost-sensitive classification is one of mainstream research topics in data mining and machine learning that induces models from data with unbalance class distributions and impacts by quantifying and tackling the unbalance. ...
  • Qin, Zhenxing; Zhang, Shichao; Zhang, Chengqi (Springer, 2004)
    How to minimize misclassification errors has been the main focus of Inductive learning techniques, such as CART and C4.5. However, misclassification error is not the only error in classification problem. Recently, researchers ...
  • Qin, Zhenxing; Zhang, Shichao; Liu, Li; Wang, Tao (IEEE Computer Society, 2008)
    In many real world data mining and classification tasks, we face with the problem of high cost in making training data sets. In addition, in many domains, different misclassification errors involve different costs. These ...
  • Zhang, Chengqi; Zhang, Shichao; Yan, Xiaowei; Qin, Zhenxing (Nanyang Technological University, 2002)
  • Qin, Zhenxing; Wang, Tao; Zhang, Shichao (IEEE, 2010)
    This paper studies an actual and new setting of cost-sensitive learning, i.e., combining test data with medical history under multiple-scale cost constraints. With a new cost structure, an attribute selection strategy is ...
  • Yan, Xiaowei; Zhang, Chengqi; Zhang, Shichao; Qin, Zhenxing (Idea Group Publishing, 2003)
    Prevailing information retrieval methods are based on either term similarity or latent semantics. Terms are considered independently. This paper presents a new strategy for information retrieval, i.e., indexing by conditional ...
  • Zhang, Chengqi; Zhang, Shichao; Yan, Xiaowei; Qin, Zhenxing (Nanyang Technological University, 2002)
  • Qin, Zhenxing; Liu, Li; Zhang, Shichao (Springer, 2004)
    As the Web has become an important channel of information floods, users have had difficulty on identifying what they really want from huge amounts of rubbish-like information provided by the Web search engines when utilizing ...
  • Qin, Zhenxing; Zhang, Shichao; Zhang, Chengqi (IOS Press, 2006)
  • Yang, Yiming; Yang, Qiang; Lu, Wei; Pan, Jialin; Pan, Rong; Lu, Chenhui; Li, Lei; Qin, Zhenxing (Springer, 2005)
    We develop an innovative data preprocessing algorithm for classifying customers using unbalanced time series data. This problem is directly motivated by an application whose aim is to uncover the customers? churning behavior ...