... criterion.Keywords: Face recognition, support vector machines, optimal separating hyperplane, binary tree, eigenface, prin-cipal component analysis.1 Introduction Face recognition technology ... a vector ofweights, which is the projection of the face image to the ba-sis in the eigenface space. Usually the nearest distance cri-terion is used for face recognition. Support Vector Machines ... Face Recognition by Support Vector Machines Guodong Guo, Stan Z. Li, and Kapluk ChanSchool of Electrical and Electronic...