Intelligent query by humming system based on score level fusion of multiple classifiers. - Gi Pyo Nam; Thi Thu Trang Luong; Hyun Ha Nam; Kang Ryoung Park; Sung-Joo Park (EURASIP J. Adv. Signal Process., 2011)

Computationally efficient multi-label classification by least-squares probabilistic classifier. - Hyun Ha Nam; Hirotaka Hachiya; Masashi Sugiyama (ICASSP, 2012)

Computationally Efficient Multi-Label Classification by Least-Squares Probabilistic Classifiers. - Hyun Ha Nam; Hirotaka Hachiya; Masashi Sugiyama (IEICE Trans. Inf. Syst., 2013)

Direct Density Ratio Estimation with Convolutional Neural Networks with Application in Outlier Detection. - Hyun Ha Nam; Masashi Sugiyama (IEICE Trans. Inf. Syst., 2015)