[11] Sheikholeslami G,Chang W,Zhang A.Semantic clustering and querying on heterogeneous features for visual data[C].Proc.of the ACM Multimedia.Bristol:ACM Press.1998,3-12.
[12] Fung C Y,Loe F K.Learning primitive and scene semantics of images for classification and retrieval[C].Proc.of the ACM Multimedia.Orlando:ACM Press,1999,2:9-12.
[13] Vailaya A,Zhong Y,Jaing A K.A hierarchical system for efficient image retrieval[C].Proc.of the 13th Int.Conf.on Pattern Recognition.Washington:IEEE Computer Society,1996,356-360.
