On Multimodality of the SSTRESS Criterion for Metric Multidimensional Scaling
Volume 14, Issue 1 (2003), pp. 121–130
Pub. online: 1 January 2003
Type: Research Article
Published
1 January 2003
1 January 2003
Abstract
Recent publications on multidimensional scaling express contradicting opinion on multimodality of STRESS criterion. An example has been published with rigorously provable multimodality of STRESS. We present an example of data and the rigorous proof of multimodality of SSTRESS for this data. Some comments are included on widely accepted opinion that minimization of SSTRESS is easier than minimization of STRESS.