@article{Xie2011-MMSJ-A1-JNL,
 author = {Xie, L. and Fu, Z. and Feng, W. and Luo, Y.},
 title = {Pitch-Density-based Features and an SVM Binary Tree Approach for Multi-Class Audio Classification in Broadcast News},
 journal = {Multimedia Syst.},
 volume = {},
 number = {},
 pages = {101-112},
 year = {2011},
}