269 citations · 551 across the 43 of their papers we have counts for
4 papers · 1 filter
Proceedings of the second "international Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST'14)
L. Jacques, C. De Vleeschouwer, Y. Boursier +64
The implicit objective of the biennial "international - Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST) is to foster collaboration between interna…
Finding the largest low-rank clusters with Ky Fan --norm and -norm
Xuan Vinh Doan, Stephen Vavasis
We propose a convex optimization formulation with the Ky Fan --norm and -norm to find largest approximately rank-one submatrix blocks of a given nonnegative matri…
Extreme point inequalities and geometry of the rank sparsity ball
D. Drusvyatskiy, S. A. Vavasis, H. Wolkowicz
We investigate geometric features of the unit ball corresponding to the sum of the nuclear norm of a matrix and the norm of its entries --- a common penalty function encourag…
IMRO: a proximal quasi-Newton method for solving -regularized least square problem
Sahar Karimi, Stephen Vavasis
We present a proximal quasi-Newton method in which the approximation of the Hessian has the special format of "identity minus rank one" (IMRO) in each iteration. The proposed struc…