Fast Fourier Sparsity Testing
Fast Fourier Sparsity Testing
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快速傅立叶稀疏性测试
DOI:
10.1137/1.9781611976014.10
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Zhou, Samson
中科院分区:
文献类型:
--
作者:
Yaroslavtsev, Grigory;Zhou, Samson
A function iss-sparseif it has at mostsnon-zero Fourier coefficients. Motivated by applications to fast sparse Fourier transforms over , we study efficient algorithms for the problem of approximating theℓ2-distance from a given function to the closests-sparse function. While previous works (e.g., Gopalanet al.SICOMP 2011) study the problem of distinguishings-sparse functions from those that are far froms-sparse under Hamming distance, to the best of our knowledge no prior work has explicitly focused on the more general problem of distance estimation in theℓ2setting, which is particularly well-motivated for noisy Fourier spectra. Given the focus on efficiency, our main result is an algorithm that solves this problem with query complexity (s) for constant accuracy and error parameters, which is only quadratically worse than applicable lower bounds.
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DOI:
--
发表时间:
2013
期刊:
Proc. 40th International Colloquium on Automata, Languages and Programming (ICALP)
影响因子:
--
作者:
Karl Wimmer;Yuichi Yoshida
通讯作者:
Yuichi Yoshida
DOI:
--
发表时间:
2013
期刊:
IEEE Annual Symposium on Foundations of Computer Science
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作者:
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Shachar Lovett
DOI:
--
发表时间:
2016
期刊:
International Conference on Machine Learning
影响因子:
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作者:
Siddharth Barman;Arnab Bhattacharyya;Suprovat Ghoshal
通讯作者:
Suprovat Ghoshal
DOI:
--
发表时间:
2012
期刊:
arXiv.org
影响因子:
--
作者:
L. Levin
通讯作者:
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影响因子:
1.4
作者:
Amir Shpilka;Avishay Tal;Ben lee Volk
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