Analysis of the modified alternative decision rule in the preclustering algorithm

Authors

  • Volodymyr Mosorov Lodz University of Technology Stefanowskiego str. 18\22, Lodz, Poland, 90-924, Poland
  • Taras Panskyi Lodz University of Technology 18\22 Stefanowskiego str., Lodz, Poland, 90-924, Poland
  • Sebastian Biedron Lodz University of Technology 18\22 Stefanowskiego str., Lodz, Poland, 90-924, Poland

DOI:

https://doi.org/10.15587/1729-4061.2015.51214

Keywords:

preclustering algorithm, precluster, modified decision rule, validity criteria, cluster

Abstract

The preclustering algorithm as opposed to other existed algorithms does not require a priori information about cluster location and about additional means of control. Preclustering algorithm is multipurpose and promising for a primary analysis of investigated input data. In this article the main part of the preclustering algorithm – the modified decision rule has been presented. The modification consisted to the replacement of the calculation of mean distances in a precluster (like in the classical decision rule) by the mean distances from the center of the precluster to all objects in the chosen precluster. The proposed decision rule determines the centre of the group as a local density maximum of the group of objects (before clustering) or of the precluster (after clustering). The results obtained during the testing of the decision rule were compared with the results obtained with the use of criteria of spherical resolution. Also, from the analysis, the advantages and disadvantages of the proposed decision rule have been identified.

Author Biographies

Volodymyr Mosorov, Lodz University of Technology Stefanowskiego str. 18\22, Lodz, Poland, 90-924

Doctor of Technical Sciences

Institute of Applied Computer Science

Taras Panskyi, Lodz University of Technology 18\22 Stefanowskiego str., Lodz, Poland, 90-924

Postgraduate student

Institute of Applied Computer Science

Sebastian Biedron, Lodz University of Technology 18\22 Stefanowskiego str., Lodz, Poland, 90-924

Postgraduate student

Institute of Applied Computer Science

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Published

2015-10-20

How to Cite

Mosorov, V., Panskyi, T., & Biedron, S. (2015). Analysis of the modified alternative decision rule in the preclustering algorithm. Eastern-European Journal of Enterprise Technologies, 5(9(77), 13–18. https://doi.org/10.15587/1729-4061.2015.51214

Issue

Vol. 5 No. 9(77) (2015): Information and controlling system

Section

Information and controlling system

License

Copyright (c) 2015 Volodymyr Mosorov, Sebastian Biedron, Taras Panskyi

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