A comparison of the M-ary/SSMA ALOHA system and the DS/SSMA ALOHA system. - Tsuyoshi Arai; Hiromasa Habuchi (PIMRC, 2000)

M-ary/SSMA slotted ALOHA with traffic control scheme on erroneous feedback channels. - Tsuyoshi Arai; Hiromasa Habuchi (GLOBECOM, 2002)

Novel code selecting/spacing ALOHA system. - Fumie Ono; Hiromasa Habuchi; Tsuyoshi Arai (PIMRC, 2005)

Detection of Bots in CAPTCHA as a Cloud Service Utilizing Machine Learning. - Tsuyoshi Arai; Yasuo Okabe; Yoshinori Matsumoto; Koji Kawamura (ICOIN, 2020)

Precursory Analysis of Attack-Log Time Series by Machine Learning for Detecting Bots in CAPTCHA. - Tsuyoshi Arai; Yasuo Okabe; Yoshinori Matsumoto (ICOIN, 2021)