Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: FastFCA: A Joint Diagonalization Based Fast Algorithm for Audio Source
  Separation Using A Full-Rank Spatial Covariance Model   A source separation method using a full-rank spatial covariance model has
been proposed by Duong et al. ["Under-determined Reverberant Audio Source
Separation Using a Full-rank Spatial Covariance Model," IEEE Trans. ASLP, vol.
18, no. 7, pp. 1830-1840, Sep. 2010], which is referred to as full-rank spatial
covariance analysis (FCA) in this paper. Here we propose a fast algorithm for
estimating the model parameters of the FCA, which is named Fast-FCA, and
applicable to the two-source case. Though quite effective in source separation,
the conventional FCA has a major drawback of expensive computation. Indeed, the
conventional algorithm for estimating the model parameters of the FCA requires
frame-wise matrix inversion and matrix multiplication. Therefore, the
conventional FCA may be infeasible in applications with restricted
computational resources. In contrast, the proposed FastFCA bypasses matrix
inversion and matrix multiplication owing to joint diagonalization based on the
generalized eigenvalue problem. Furthermore, the FastFCA is strictly equivalent
to the conventional algorithm. An experiment has shown that the FastFCA was
over 250 times faster than the conventional algorithm with virtually the same
source separation performance.

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The categories of this paper are: alg-geom
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: hep-th