• DocumentCode
    1856133
  • Title

    Model based probabilistic piecewise curve approximation

  • Author

    Siibakan, Y.C. ; Sankur, B.

  • Author_Institution
    Electr. & Electron. Eng., Bogazici Univ., Istanbul, Turkey
  • fYear
    2012
  • fDate
    27-31 Aug. 2012
  • Firstpage
    669
  • Lastpage
    673
  • Abstract
    In this work, we approach the piecewise curve approximation problem with a model-based probabilistic framework. For this purpose, we propose three different models. These models can be used for feature extraction or compression. The first model is a variant of the Bayesian regression model where we can parametrically alter the design matrix. The second model approaches the piecewise curve approximation as a clustering problem. The third model adds temporal connectivity to the second model and combines Hidden Markov models with linear regression. We run the first and the third models on a curve which is used to rank existing algorithms and show that our approaches outperforms its rivals. We also run our models on several real-life curves to show their capabilities.
  • Keywords
    Bayes methods; approximation theory; curve fitting; data compression; feature extraction; hidden Markov models; matrix algebra; pattern clustering; regression analysis; Bayesian regression model; clustering problem; design matrix; feature compression; feature extraction; hidden Markov model; linear regression; model-based probabilistic framework; piecewise curve approximation; temporal connectivity; Approximation algorithms; Approximation methods; Bayesian methods; Hidden Markov models; Splines (mathematics); Transmission line matrix methods; Vectors; Bayesian modeling; Curve segment clustering; Hidden Markov Models; Piecewise curve approximation;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signal Processing Conference (EUSIPCO), 2012 Proceedings of the 20th European
  • Conference_Location
    Bucharest
  • ISSN
    2219-5491
  • Print_ISBN
    978-1-4673-1068-0
  • Type

    conf

  • Filename
    6334240