rSWTi: A robust stationary wavelet denoising method for array CGH data

Yuhang Wang, Siling Wang, Andrew R. Zinn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

High-throughput comparative genomic hybridization arrays have recently been developed to detect DNA copy number (DCN) aberrations. The DCN data from these arrays is often very noisy and thus calls for appropriate denoising methods. It has been recognized that a) the physical distances between adjacent probes are not uniform and that b) there are often outliers in the data. Previously proposed denoising methods for DCN data did not consider these two issues at the same time. In this paper, we address the two issues simultaneously in a new wavelet denoising scheme, called rSWTi (robust Stationary Wavelet Transform based denoising with interpolation), which extends the traditional stationary wavelet denoising approach. Empirical results on synthetic data showed that our method outperformed other methods by large margins as measured in the root mean squared error.

Original languageEnglish (US)
Title of host publicationProceedings of the 7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE
Pages1066-1070
Number of pages5
DOIs
StatePublished - Dec 1 2007
Event7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE - Boston, MA, United States
Duration: Jan 14 2007Jan 17 2007

Publication series

NameProceedings of the 7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE

Other

Other7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE
CountryUnited States
CityBoston, MA
Period1/14/071/17/07

ASJC Scopus subject areas

  • Biotechnology
  • Genetics
  • Bioengineering

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  • Cite this

    Wang, Y., Wang, S., & Zinn, A. R. (2007). rSWTi: A robust stationary wavelet denoising method for array CGH data. In Proceedings of the 7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE (pp. 1066-1070). [4375690] (Proceedings of the 7th IEEE International Conference on Bioinformatics and Bioengineering, BIBE). https://doi.org/10.1109/BIBE.2007.4375690