Identifiable Bounded Component Analysis Via Minimum Volume Enclosing Parallelotope
Identifiable Bounded Component Analysis Via Minimum Volume Enclosing Parallelotope
复制标题
通过最小体积封闭平行位图进行可识别的有界分量分析
DOI:
10.1109/icassp49357.2023.10095905
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Huang, Kejun
中科院分区:
文献类型:
--
作者:
Hu, Jingzhou;Huang, Kejun
In this paper, we revisit bounded component analysis (BCA) and formulate it as a geometric problem of finding the minimum volume enclosing parallelotope (MVEP) of a set of data points in the Euclidean space. A parallelotope is an affine transformation of the standard box, also known as the L∞-norm ball. An immediate benefit of the novel formulation is that the bounds on the supports of the latent components can be arbitrary, unlike most existing BCA works that assume the bounds are symmetric around zero. The main contribution is that the MVEP solution exactly recovers the latent components, up to the inherent (and inconsequential) permutation, shift, and scaling ambiguities, if the groundtruth components satisfy a so-called "sufficiently scattered" condition in the standard box. This is a great improvement to the existing result that requires all vertices of the box are contained in the data set, which requires exponentially many data points, or that of ICA, which essentially requires infinite amount of data points to guarantee exact recovery. We also present a new learning algorithm to solve the (NP-hard) MVEP problem based on Frank-Wolfe, and show numerically that the performance is surprisingly effective.
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影响因子:
5.4
作者:
S. Cruces;Iván Durán
通讯作者:
Iván Durán
DOI:
--
发表时间:
2016-11
期刊:
ArXiv
影响因子:
--
作者:
Kejun Huang;Xiao Fu;N. Sidiropoulos
通讯作者:
Kejun Huang;Xiao Fu;N. Sidiropoulos
影响因子:
64.8
作者:
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通讯作者:
Seung, HS
影响因子:
5.4
作者:
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通讯作者:
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DOI:
10.1109/icassp.2005.1416269
发表时间:
2005
期刊:
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.
影响因子:
--
作者:
A. Erdogan
通讯作者:
A. Erdogan