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<正> 同学们在学习了反函数这一节后,很多同学还是搞不清y=f(4-x)的反函数是否是y=f-1(4-x),例如,已知函数f(x)的图象过点(0,1),则f(4-x)的反函数的图象过点( )(A)(4,1) (B)(1,4) (C)(3,0) (D)(0,3)有的同学选(C),有的同学选(B). 相似文献
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1 Introduction Support vector machine (SVM) is a powerful ma-chine learning tool capable of representing non-linearrelationships and producing models that generalizeswell to unseen data .SVMhave been applied widelyinmany fields[1]such as hand-written character recogni-tion ,text categorization,computer vision,speechrec-ognition and gene classification,etc. Despite this , using an SVM requires a certainamount of model selection,i.e.,selection of the ac-tual kernel and its parameters .In rec… 相似文献
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