Intelligent Design of Control Systems Combining Knowledge-Based System with Conventional Design Method. - Ryoichi Fujiwara (Terminology and Knowledge Engineering (Vol. 1), 1990)

Line segment detection by estimating quantization error of hough transform. - Kanji Tsukise; Ryoichi Fujiwara; Yoshiaki Tsuboi (Syst. Comput. Jpn., 1996)