Estimation of conditional quantiles by a new smoothing approximation of asymmetric loss functions. - G. H. Zhao; Kok Lay Teo; K. S. Chan (Stat. Comput., 2005)

Extrapolated impulse response filter and its application in the synthesis of digital filters using the frequency-response masking technique. - Ya Jun Yu; Kok Lay Teo; Yong Ching Lim; G. H. Zhao (Signal Process., 2005)