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Unpublished Paper
A note on the sub-optimality of rank ordering of objects on the basis of the leading principal component factor scores
Working Papers NEHU-Economics-1 (2008)
  • Sudhanshu K Mishra, North-Eastern Hill University, Shillong (India)
Abstract

This paper demonstrates that if we intend to optimally rank order n objects (candidates) each of which has m rank-ordered attributes or rank scores have been awarded by m evaluators, then the overall ordinal ranking of objects by the conventional principal component based factor scores turns out to be suboptimal. Three numerical examples have been provided to show that principal component based rankings do not necessarily maximize the sum of squared correlation coefficients between the individual m rank scores arrays, X(n,m), and overall rank scores array, Z(n).

Keywords
  • Rankings,
  • sub-optimal,
  • optimality,
  • principal component,
  • factor scores,
  • Differential Evolution,
  • global optimization
Publication Date
Winter December 30, 2008
Citation Information
Sudhanshu K Mishra. "A note on the sub-optimality of rank ordering of objects on the basis of the leading principal component factor scores" Working Papers NEHU-Economics-1 (2008)
Available at: http://works.bepress.com/sk_mishra/1/