163 citations · 704 across the 74 of their papers we have counts for
3 papers · 2 filters
Sparse seismic imaging using variable projection
Aleksandr Y. Aravkin, Tristan van Leeuwen, Ning Tu
We consider an important class of signal processing problems where the signal of interest is known to be sparse, and can be recovered from data given auxiliary information about ho…
Smoothing Dynamic Systems with State-Dependent Covariance Matrices
Aleksandr Y. Aravkin, James V. Burke
Kalman filtering and smoothing algorithms are used in many areas, including tracking and navigation, medical applications, and financial trend filtering. One of the basic assumptio…
Variational properties of value functions
Aleksandr Y. Aravkin, James V. Burke, Michael P. Friedlander
Regularization plays a key role in a variety of optimization formulations of inverse problems. A recurring theme in regularization approaches is the selection of regularization par…