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Vegetatio

, Volume 35, Issue 2, pp 131–136 | Cite as

Planning an adaptive numerical classification

  • Michael B. Dale
Article

Summary

While numerical methods of classification seek to strictly formalise one part of the classificatory process, a human classifier uses a variety of different approaches to obtain a satisfactory organisation of data. In this paper some means of increasing the flexibility of numerical methods are discussed, in particular the possible uses of the taxonomic hierarchy. It is first necessary to show that higher taxonomic units contain ecologically interesting information. Then, using a two parameter classification method a means of progressing from higher to lower taxonomic units, during analysis and in a data dependent manner, is outlined. A similar procedure is possible with nested samples. However, since the value of a classification resides in its ecological interpretation, an automatic classification requires some means of ascribing meanings to classes. While such a semantic analysis seems theoretically possible, its practical attainment presents considerable difficulties.

Keywords

Classification Heuristic search Semantics Two-parameter Taxon rank 

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Copyright information

© Dr. W. Junk b.v. - Publishers 1977

Authors and Affiliations

  • Michael B. Dale
    • 1
  1. 1.Division of GeobotanyUniversity of Nijmegen, ToernooiveldNijmegenThe Netherlands

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