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Applied geochemistry : journal of the International Association of Geochemistry and Cosmochemistry v.91, 2018년, pp.221 - 227   SCI SCIE SCOPUS
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Machine learning techniques to repurpose Uranium Ore Concentrate (UOC) industrial records and their application to nuclear forensic investigation

Jones, A. (Department of Electrical Engineering and Electronics, University of Liverpool, Brownlow Hill, Liverpool, L69 3GJ, UK ) ; Keatley, A.C. (Interface Analysis Centre, School of Physics, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, UK ) ; Goulermas, J.Y. (Department of Electrical Engineering and Electronics, University of Liverpool, Brownlow Hill, Liverpool, L69 3GJ, UK ) ; Scott, T.B. (Interface Analysis Centre, School of Physics, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, UK ) ; Turner, P. (AWE, Aldermaston, Reading, Berkshire, RG7 4PR, UK ) ; Awbery, R. (AWE, Aldermaston, Reading, Berkshire, RG7 4PR, UK ) ; Stapleton, M. (AWE, Aldermaston, Reading, Berkshire, RG7 4PR, UK ) ;
  • 초록  

    Abstract The discipline of nuclear forensics has emerged in response to the illicit trafficking of nuclear materials and aims to determine the provenance of intercepted materials by comparing them to a database of samples of known origin. One of the major challenges of this approach is the availability of reliable inventory data for the various radioactive materials that may be intercepted. Analysing the representative samples is a lengthy process and it can be difficult to obtain data from legacy materials. Therefore previous nuclear forensic studies have often been based on datasets of very limited size. We propose an approach to repurpose pre-existing quality control inventory data from Uranium Ore Concentrates (UOCs) such that it can be exploited for nuclear forensic investigation. Furthermore, it is demonstrated that pattern recognition techniques can be used to successfully utilise this data to reliably infer the country and deposit group of material origin. We have also demonstrated methods for overcoming the issues associated with quality control records; missing data and data represented as less than values. Highlights Use of quality control records for nuclear forensic investigations. Methods for dealing with missing data and less-than values. Classification of UOC data using pattern recognition techniques.


  • 주제어

    Nuclear forensics .   Uranium Ore Concentrate .   UOC .   Deposit .   Missing data .   Classification .   Visualisation .   Feature selection.  

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