On the initialisation of Sammon's nonlinear mapping

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The initialisation of a neural network implementation of Sammon's mapping, either randomly or based on the principal components (PCs) of the sample covariance matrix, is experimentally investigated. When PCs are employed, fewer experiments are needed and the network configuration can be set precisely without trial-and-error experimentation. Tested on five real-world databases, it is shown that very few PCs ate required to achieve a shorter training period, lower mapping error and higher classification accuracy, compared with those based on random initialisation.

Original languageEnglish
Pages (from-to)61-68
Number of pages8
JournalPattern Analysis and Applications
Volume3
Issue number1
DOIs
StatePublished - 1 Jan 2000

Keywords

  • Classification
  • Data projection
  • Initialisation
  • Neural networks
  • Principal component analysis (PCA)
  • Sammon's mapping

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Artificial Intelligence

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