Efficient sum of outer products dictionary learning (SOUP-DIL) and its application to inverse problems. Ravishankar, S., Nadakuditi, R. R., & Fessler, J. A. 2017.
Efficient sum of outer products dictionary learning (SOUP-DIL) and its application to inverse problems [link]Paper  bibtex   
@MISC{ravishankar:17:eso-tci-arxiv,
 author = {S. Ravishankar and R. R. Nadakuditi and J. A. Fessler},
 title = {Efficient sum of outer products dictionary learning {(SOUP-DIL)} and its application to inverse problems},
 url = {http://arxiv.org/abs/1511.06333},
 year = 2017
}

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