Smartcard-based micro-billing scheme to activate the market for user-generated content. - Masayuki Terada; Kozo Noaki; Kimihiko Sekino (ICUIMC, 2010)

Distributed Collaborative Filtering Protocol Based on Quasi-homomorphic Similarity. - Hiroaki Kikuchi; Yoshiki Aoki; Masayuki Terada; Kazuhiko Ishii; Kimihiko Sekino (IMIS, 2011)

Accuracy of Privacy-Preserving Collaborative Filtering Based on Quasi-homomorphic Similarity. - Hiroaki Kikuchi; Yoshiki Aoki; Masayuki Terada; Kazuhiko Ishii; Kimihiko Sekino (UIC/ATC, 2012)

Sound Marketization of User-Generated Content based on a Fair Micro-Billing Scheme. - Masayuki Terada; Kozo Noaki; Kimihiko Sekino (J. Softw., 2013)

A new higher order differential of Camellia. - Nobuyuki Sugio; Hiroshi Aono; Kimihiko Sekino; Toshinobu Kaneko (ISITA, 2014)