@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}, }