Discriminative training of tied mixture density HMMs for online handwritten digit recognition. - Roongroj Nopsuwanchai; Alain Biem (ICASSP (2), 2003)

Discriminative Training for HMM-Based Offline Handwritten Character Recognition. - Roongroj Nopsuwanchai; Daniel Povey (ICDAR, 2003)

Prototype-based minimum error classifier for handwritten digits recognition. - Roongroj Nopsuwanchai; Alain Biem (ICASSP (5), 2004)

Discriminative training methods and their applications to handwriting recognition. - Roongroj Nopsuwanchai (2004)

Maximization of Mutual Information for Offline Thai Handwriting Recognition. - Roongroj Nopsuwanchai; Alain Biem; W. F. Clocksin (IEEE Trans. Pattern Anal. Mach. Intell., 2006)

Classification of Blink Waveforms Towards the Assessment of Driver's Arousal Level - An Approach for HMM Based Classification from Blinking Video Sequence. - Yoshihiro Noguchi; Roongroj Nopsuwanchai; Mieko Ohsuga; Yoshiyuki Kamakura (HCI (13), 2007)

Classification of Blink Waveforms Toward the Assessment of Driver's Arousal Levels - An EOG Approach and the Correlation with Physiological Measures. - Mieko Ohsuga; Yoshiyuki Kamakura; Yumiko Inoue; Yoshihiro Noguchi; Roongroj Nopsuwanchai (HCI (13), 2007)

Driver-Independent Assessment of Arousal States from Video Sequences Based on the Classification of Eyeblink Patterns. - Roongroj Nopsuwanchai; Yoshihiro Noguchi; Mieko Ohsuga; Yoshiyuki Kamakura; Yumiko Inoue (ITSC, 2008)