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Kernel Density-Based Pattern Classification in Blind Fasteners Installation

  • Alberto Diez-OlivanEmail author
  • Mariluz Penalva
  • Fernando Veiga
  • Lutz Deitert
  • Ricardo Sanz
  • Basilio Sierra
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10334)

Abstract

In this work we introduce a kernel density-based pattern classification approach for the automatic identification of behavioral patterns from monitoring data related to blind fasteners installation. High density regions are estimated from feature space to establish behavioral patterns, automatically removing outliers and noisy instances in an iterative process. First the kernel density estimator is applied on the fastener features representing the quality of the installation. Then the behavioral patterns are identified from resulting high density regions, also considering the proximity between instances. Patterns are computed as the average of related monitoring torque-rotation diagrams. New fastening installations can be thus automatically classified in an online fashion. In order to show the validity of the approach, experiments have been conducted on real fastening data. Experimental results show an accurate pattern identification and classification approach, obtaining a global accuracy over \(78\%\) and improving current detection capabilities and existing evaluation systems.

Keywords

Kernel density estimator Behavioral patterns Unsupervised classification Outlier detection Blind fasteners installation Machine learning 

Notes

Acknowledgements

These results are part of a project that has received funding from the European Unions Horizon 2020 research and innovation programme under grant agreement 686827.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Alberto Diez-Olivan
    • 1
    Email author
  • Mariluz Penalva
    • 1
  • Fernando Veiga
    • 1
  • Lutz Deitert
    • 2
  • Ricardo Sanz
    • 3
  • Basilio Sierra
    • 4
  1. 1.Tecnalia Research and InnovationDonostia - San SebastiánSpain
  2. 2.Airbus Operations GmbHBremenGermany
  3. 3.Autonomous Systems LaboratoryUniv. Politécnica de MadridMadridSpain
  4. 4.Department of Computer Sciences and Artificial IntelligenceUPV/EHUDonostia - San SebastiánSpain

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