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Estimate exchange o...
Estimate exchange over network is good for distributed hard thresholding pursuit
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- Zaki, Ahmed (författare)
- KTH,Teknisk informationsvetenskap
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- Mitra, Partha P. (författare)
- Cold Spring Harbor Lab, 1 Bungtown Rd, New York, NY USA.
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- Rasmussen, Lars Kildehöj (författare)
- KTH,Skolan för elektroteknik och datavetenskap (EECS)
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- Chatterjee, Saikat (författare)
- KTH,ACCESS Linnaeus Centre
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(creator_code:org_t)
- Elsevier, 2019
- 2019
- Engelska.
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Ingår i: Signal Processing. - : Elsevier. - 0165-1684 .- 1872-7557. ; 156, s. 1-11
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We investigate an existing distributed algorithm for learning sparse signals or data over networks. The algorithm is iterative and exchanges intermediate estimates of a sparse signal over a network. This learning strategy using exchange of intermediate estimates over the network requires a limited communication overhead for information transmission. Our objective in this article is to show that the strategy is good for learning in spite of limited communication. In pursuit of this objective, we first provide a restricted isometry property (RIP)-based theoretical analysis on convergence of the iterative algorithm. Then, using simulations, we show that the algorithm provides competitive performance in learning sparse signals vis-a-vis an existing alternate distributed algorithm. The alternate distributed algorithm exchanges more information including observations and system parameters.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Sparse learning
- Distributed algorithm
- Greedy pursuit algorithm
- RIP analysis
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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