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Audrey Repetti
Researcher at Heriot-Watt University
Publications - 72
Citations - 1490
Audrey Repetti is an academic researcher from Heriot-Watt University. The author has contributed to research in topics: Inverse problem & Convex optimization. The author has an hindex of 15, co-authored 63 publications receiving 1121 citations. Previous affiliations of Audrey Repetti include University of Marne-la-Vallée & University of Paris.
Papers
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Journal ArticleDOI
Variable Metric Forward---Backward Algorithm for Minimizing the Sum of a Differentiable Function and a Convex Function
TL;DR: An acceleration strategy based on the use of variable metrics and of the Majorize–Minimize principle is proposed and the sequence generated by the resulting Variable Metric Forward–Backward algorithm converges to a critical point of G.
Journal ArticleDOI
A block coordinate variable metric forward---backward algorithm
TL;DR: This work considers the minimization of an objective function satisfying this property, and gives conditions under which the sequence generated by the resulting Block Coordinate Variable Metric Forward–Backward algorithm converges to a critical point of the objective function.
Journal ArticleDOI
The LOFAR Two-meter Sky Survey: Deep Fields Data Release 1. I. Direction-dependent calibration and imaging
Cyril Tasse,Cyril Tasse,Cyril Tasse,Timothy W. Shimwell,Timothy W. Shimwell,Martin J. Hardcastle,Shane O'Sullivan,R. J. van Weeren,P. N. Best,L. Bester,B. Hugo,Oleg Smirnov,J. Sabater,G. Calistro-Rivera,F. de Gasperin,Leah K. Morabito,H. J. A. Röttgering,Wendy L. Williams,Matteo Bonato,M. Bondi,A. Botteon,A. Botteon,Marcus Brüggen,G. Brunetti,Krzysztof T. Chyzy,M. A. Garrett,M. A. Garrett,G. Gürkan,Matt J. Jarvis,R. Kondapally,Subhash C. Mandal,Isabella Prandoni,Audrey Repetti,E. Retana-Montenegro,Dominik J. Schwarz,Aleksandar Shulevski,Yves Wiaux +36 more
TL;DR: In this paper, the authors present a new calibration and imaging pipeline that aims at producing high fidelity, high dynamic range images with LOFAR High Band Antenna data, while being computationally efficient and robust against the absorption of unmodeled radio emission.
Journal ArticleDOI
The LOFAR Two Meter Sky Survey: Deep Fields, I -- Direction-dependent calibration and imaging
C. Tasse,Timothy W. Shimwell,Martin J. Hardcastle,Shane O'Sullivan,R. J. van Weeren,Philip Best,L. Bester,B. Hugo,Oleg Smirnov,J. Sabater,G. Calistro-Rivera,F. de Gasperin,Leah K. Morabito,Huub Röttgering,Wendy L. Williams,M. Bonato,M. Bondi,A. Botteon,Marcus Brüggen,G. Brunetti,Krzysztof T. Chyzy,M. A. Garrett,G. Gürkan,Matt J. Jarvis,R. Kondapally,S. Mandal,Isabella Prandoni,Audrey Repetti,E. Retana-Montenegro,Dominik J. Schwarz,A. Shulevski,Yves Wiaux +31 more
TL;DR: In this paper, the authors present a new calibration and imaging pipeline that aims at producing high fidelity, high dynamic range images with LOFAR High Band Antenna data, while being computationally efficient and robust against the absorption of unmodeled radio emission.
Journal ArticleDOI
Euclid in a Taxicab: Sparse Blind Deconvolution with Smoothed ${\ell _1}/{\ell _2}$ Regularization
TL;DR: This paper proposes a new penalty based on a smooth approximation to the ℓ/ℓ 2 function and develops a proximal-based algorithm to solve variational problems involving this function and derives theoretical convergence results.