Spectral Transformation Approaches to Semi-supervised Learning. - Chonghai Hu; Chengqun Wang; Kangsheng Liu (FSKD (2), 2008)

Kernel Matrix Learning for One-Class Classification. - Chengqun Wang; Jiangang Lu; Chonghai Hu; Youxian Sun (ISNN (1), 2008)

Accelerated Gradient Methods for Stochastic Optimization and Online Learning. - Chonghai Hu; James T. Kwok; Weike Pan (NIPS, 2009)

Manifold regularization for structured outputs via the joint kernel. - Chonghai Hu; James T. Kwok (IJCNN, 2010)