Elsevier

Fuzzy Sets and Systems

Volume 92, Issue 3, 16 December 1997, Pages 289-303
Fuzzy Sets and Systems

Two manufacturing applications of the fuzzy K-NN algorithm

https://doi.org/10.1016/S0165-0114(96)00176-5Get rights and content

Abstract

This paper discusses the applications of the fuzzy K-NN (K-nearest neighbors) algorithm for identifying welds from digitized radiographic images and for determining PCBN (polycrystalline cubic boron nitride) tool failure in face milling operations. Both applications consist of two major steps: feature extraction and pattern classification. For the weld identification application, the weld image is processed line by line and three features are extracted for each object in the line image. These features are the width, the mean square error (MSE) between the object and its Gaussian, and the peak intensity (gray level). For the application of tool failure recognition, two features are derived from AE signals generated by the cutting operation. They are the ΔRMS and peak/count ratio. The use of the fuzzy K-NN classifier and the classification results are discussed. The results show that the fuzzy K-NN classifier yields high successful rates of recognition for both applications.

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