Automatic Chord Recognition Based on Probabilistic Integration of Chord Transition and Bass Pitch Estimation. - Kouhei Sumi; Katsutoshi Itoyama; Kazuyoshi Yoshii; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (ISMIR, 2008)

Acoustic event detection for spotting "hot spots" in podcasts. - Kouhei Sumi; Tatsuya Kawahara; Jun Ogata; Masataka Goto (INTERSPEECH, 2009)

Detection of hot spots in poster conversations based on reactive tokens of audience. - Tatsuya Kawahara; Kouhei Sumi; Zhi-Qiang Chang; Katsuya Takanashi (INTERSPEECH, 2010)

A music retrieval system using chroma and pitch features based on conditional random fields. - Kouhei Sumi; Miki Arai; Takuya Fujishima; Seiichi Hashimoto (ICASSP, 2012)