Enhancement of kernel dependency estimation with information generalization and a case study on skewed data

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题名:	Enhancement of kernel dependency estimation with information generalization and a case study on skewed data
作者:	張嘉惠;Chen, Qingzhi;Chang, Chia-Hui
贡献者:	資訊電機學院資訊工程學系
关键词:	Algorithms;Applied sciences;Artificial Intelligence;Case studies;Classification;Computer Science;Computer science;control theory;systems;Data processing. List processing. Character string processing;Datasets;Exact sciences and technology;Ground truth;Handles;Intelligence;Kernels;Learning;Machines;Manufacturing;Mechanical Engineering;Memory organisation. Data processing;Principal components analysis;Processes;Software;Strategy;Support vector machines
日期:	2014-01-01
上传时间:	2026-04-23 13:38:30 (UTC+8)
出版者:	Springer Netherlands;Boston: Springer US
摘要:	摘要： Kernel dependency estimation (KDE) is a learning framework of finding the dependencies between two general classes of objects. Although it has been successfully used for many types of applications, its properties are not fully studied. In this paper, we discuss two practical issues with KDE. The first one is its real-value output for each label, which differ from the desired binary value for the 1-of-k coding scheme. Thus, a gap usually exists between the predicted real-value from KDE and the ground truth binary value. One common practice to reduce the gap is using thresholding strategies. In this paper, we provide an alternative approach that combines a second-level classifier using a special degenerated form of stacked generalization. The second issue is the decreasing performance when KDE is applied to classification with skewed data. Our experiments show that standard KDE is not an appropriate approach for skewed data; we then provide a solution to handle skewed data. 其他題名： Appl Intell 出版者： Boston: Springer US 出版日期： 2014-09-01 出處： Applied intelligence (Dordrecht, Netherlands), 2014-09, Vol.41 (2), p.582-593 資源來源： ABI/INFORM Collection 版權： Springer Science+Business Media New York 2014 版權： 2015 INIST-CNRS 識別號： ISSN: 0924-669X 識別號： EISSN: 1573-7497 識別號： DOI: 10.1007/s10489-014-0539-8
显示于类别:	[資訊工程學系] 期刊論文

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