A Generalized Two-Dimensional Index to Measure the Degree of Deviation from Double Symmetry in Square Contingency Tables. - Shuji Ando; Hikaru Hoshi; Aki Ishii; Sadao Tomizawa (Symmetry, 2021)

Two-Dimensional Index of Departure from the Symmetry Model for Square Contingency Tables with Nominal Categories. - Tomotaka Momozaki; Tomoyuki Nakagawa; Aki Ishii; Yusuke Saigusa; Sadao Tomizawa (Symmetry, 2021)

Geometric classifiers for high-dimensional noisy data. - Aki Ishii; Kazuyoshi Yata; Makoto Aoshima (J. Multivar. Anal., 2022)

Measures of Departure from Local Marginal Homogeneity for Square Contingency Tables. - Ken Saito; Nozomi Takakubo; Aki Ishii; Tomoyuki Nakagawa; Sadao Tomizawa (Symmetry, 2022)