Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WavmatND: A MATLAB Package for Non-Decimated Wavelet Transform and its
  Applications   A non-decimated wavelet transform (NDWT) is a popular version of wavelet
transforms because of its many advantages in applications. The inherent
redundancy of this transform proved beneficial in tasks of signal denoising and
scaling assessment. To facilitate the use of NDWT, we built a MATLAB package,
{\bf WavmatND}, which has three novel features: First, for signals of moderate
size the proposed method reduces computation time of the NDWT by replacing
repetitive convolutions with matrix multiplications. Second, submatrices of an
NDWT matrix can be rescaled, which enables a straightforward inverse transform.
Finally, the method has no constraints on a size of the input signal in one or
in two dimensions, so signals of non-dyadic length and rectangular
two-dimensional signals with non-dyadic sides can be readily transformed. We
provide illustrative examples and a tutorial to assist users in application of
this stand-alone package.

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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: math
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph