Figure 1
From: Non-linear mapping for exploratory data analysis in functional genomics
Relaxation method for non-linear mapping. The input to the algorithm is a collection of K points described in an n-dimensional space. A mapping iteration refers to a complete sequence of adaptation steps involving pairs of points, p(i,j). A point may encode a biological sample described by a gene expression profile (e.g. tumour sample), or a protein described by an interaction profile.