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A Bayesian approach for the alignment of high-resolution NMR spectra

Author

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  • Seoung Kim
  • Zhou Wang
  • Basavaraj Hiremath

Abstract

Metabolic analysis with high-resolution nuclear magnetic resonance (NMR) enables simultaneous investigation of numerous chemical species in response to biochemical changes in subjects. When the analysis involves comparing two or more NMR spectra, it is essential to properly align them because small variations across different spectra influence the alignment and thus, interfere with direct comparisons between samples. We propose a new alignment method within the Bayesian modeling framework. The proposed method allows us to estimate the amplitude and phase shifts simultaneously and to obtain robust results in the existence of noise. Effectiveness of our proposed method is demonstrated through real NMR spectra in human plasma and a comparison study with dynamic time warping and correlated optimized warping, two widely used alignment methods in spectral data. Copyright Springer Science+Business Media, LLC 2010

Suggested Citation

  • Seoung Kim & Zhou Wang & Basavaraj Hiremath, 2010. "A Bayesian approach for the alignment of high-resolution NMR spectra," Annals of Operations Research, Springer, vol. 174(1), pages 19-32, February.
    • Handle: RePEc:spr:annopr:v:174:y:2010:i:1:p:19-32:10.1007/s10479-008-0332-3
    DOI: 10.1007/s10479-008-0332-3
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