Nonlinear Interpolation of Multivariable Functions by the Monte Carlo Method. - Takao Tsuda; Kozo Ichida (J. ACM, 1970)

Numerical integration in the irregular region. - Kozo Ichida; Takeshi Kiyono (Computing, 1974)

Interpolation of multivariable functions with respect to random points. - Kozo Ichida; Takeshi Kiyono (Computing, 1974)

Estimation of a Probability Density Function of Very Many Variables. - Kozo Ichida; Takeshi Kiyono (IEEE Trans. Syst. Man Cybern., 1975)

curve fitting by a piecewise cubic polynomial. - Kozo Ichida; Fujiichi Yoshimoto; Takeshi Kiyono (Computing, 1976)

Curve Fitting by a One-Pass Method With a Piecewise Cubic Polynomial. - Kozo Ichida; Takeshi Kiyono; Fujiichi Yoshimoto (ACM Trans. Math. Softw., 1977)

An interval arithmetic method for global optimization. - Kozo Ichida; Yasuo Fujii (Computing, 1979)

Maximization of Multivariable Functions Using Interval Analysis. - Yasuo Fujii; Kozo Ichida; Masahiro Ozasa (Interval Mathematics, 1985)

Multicriterion optimization using interval analysis. - Kozo Ichida; Yasuo Fujii (Computing, 1990)