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  2010, Vol. 23 Issue (2): 235-240    DOI:
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Feature Selection Algorithm Based on Kernel Distance Measure
CAI Zhe-Yuan1, YU Jian-Guo1, LI Xian-Peng2,JIN Zhen-Dong2
1.Department of Electronic Engineering,Fudan University,Shanghai 200433
2.Department of Gastroenterology,Changhai Hospital,Shanghai 200433

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Abstract  The kernel distance measure is proposed as a new type of class separability. The distance of samples between two classes is measured in the kernel space and used to evaluate the separability of subsets. Using the sequential forward selection algorithm as the search strategy, tests are carried out on both synthetic and real datasets. Experimental results demonstrate that the proposed method outperforms the traditional non-kernel class separability. Moreover, the proposed method is superior or close to the kernel scatter matrix measures proposed by Wang and its running time is an order of magnitude faster. When applied to the pancreatic EUS image classification, the proposed method receives a good result.
Key wordsFeature Selection      Class Separability      Distance Measure      Kernel Method      Classification     
Received: 13 May 2009     
ZTFLH: TP391.4  
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CAI Zhe-Yuan
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CAI Zhe-Yuan,YU Jian-Guo,LI Xian-Peng等. Feature Selection Algorithm Based on Kernel Distance Measure[J]. , 2010, 23(2): 235-240.
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http://manu46.magtech.com.cn/Jweb_prai/EN/      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2010/V23/I2/235
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