Multispectral image classification using rough set theory and the comparison with parallelepiped classifier. - Chih-Cheng Hung; Hendri Purnawan; Bor-Chen Kuo (IGARSS, 2007)

A Hybrid Rough K-Means Algorithm and Particle Swarm Optimization for Image Classification. - Chih-Cheng Hung; Hendri Purnawan (MICAI, 2008)