A memory-based distributed vision system that employs a form of attention to recognize group activity at a subway station. - Karl F. MacDorman; Hiroshi Nobuta; Tetsushi Ikeda; Satoshi Koizumi; Himshi Ishiguro (IROS, 2004)

Memory-based recognition of human behavior based on sensory data of high dimensionality. - Karl Frederic MacDorman; Hiroshi Nobuta; Takashi Minato; Hiroshi Ishiguro (IROS, 2004)

Memory-Based Attention Control for Activity Recognition at a Subway Station. - Karl F. MacDorman; Hiroshi Nobuta; Satoshi Koizumi; Hiroshi Ishiguro (IEEE Multim., 2007)