• DocumentCode
    3147160
  • Title

    Outliers in Biometrical Data - Two Real Examples of Analysis

  • Author

    Bartkowiak, Anna

  • Author_Institution
    Inst. of Comput. Sci., Univ. of Wroclaw, Wroclaw, Poland
  • fYear
    2009
  • fDate
    25-28 June 2009
  • Firstpage
    1
  • Lastpage
    6
  • Abstract
    The problem of finding and identifying outliers in multivariate measurement data is as old as the data analysis itself. The question: "what is an outlier" has many answers, is is especially difficult when considering high-dimensional data. In the paper a search for outliers in two real data sets is shown. It is stressed that identifying outliers should not be done on the basis of asymptotical cutoffs derived under assumption of normality of the analyzed data.
  • Keywords
    biometrics (access control); computerised instrumentation; data analysis; biometrical data; data analysis; high-dimensional data; multivariate measurement data; outliers; Bioinformatics; Biological cells; Biometrics; Computer science; Data analysis; Data engineering; Frequency; Fungi; Informatics; Robustness; outliers; principal components and SVD; robust Mahalanobis distances; robust estimate;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Biometrics and Kansei Engineering, 2009. ICBAKE 2009. International Conference on
  • Conference_Location
    Cieszyn
  • Print_ISBN
    978-0-7695-3692-7
  • Electronic_ISBN
    978-0-7695-3692-7
  • Type

    conf

  • DOI
    10.1109/ICBAKE.2009.47
  • Filename
    5223287