Witten, Daniela M.; Tibshirani, Robert - In: Computational Statistics & Data Analysis 55 (2011) 1, pp. 789-801
Least squares multidimensional scaling (MDS) is a classical method for representing a nxn dissimilarity matrix . One seeks a set of configuration points such that is well approximated by the Euclidean distances between the configuration points: . Suppose that in addition to , a vector of...