Published online by Cambridge University Press: 01 January 2025
This paper is concerned with the additive constant problem in metric multidimensional scaling. First the influence of the additive constant on eigenvalues of a scalar product matrix is discussed. The second part of this paper is devoted to the introduction of a new formulation of the additive constant problem. A solution is given for fixed dimensionality, by maximizing a normalized index of fit with a gradient method. An experimental computation has shown that the author's solution is accurate and easy to follow.
The author wishes to thank Mr. Yukio Inukai and anonymous reviewers for their useful suggestions. Sincere thanks are extended to Dr. Yajiro Morita who improved the English manuscript.