21 citations · 40 across the 7 of their papers we have counts for
7 papers
Optimized time-lapse acquisition design via spectral gap ratio minimization
Yijun Zhang, Ziyi Yin, Oscar Lopez +4
Modern-day reservoir management and monitoring of geological carbon storage increasingly call for costly time-lapse seismic data collection. In this letter, we show how techniques…
Spectral Gap-Based Seismic Survey Design
Oscar López, Rajiv Kumar, Nick Moldoveanu +1
Seismic imaging in challenging sedimentary basins and reservoirs requires acquiring, processing, and imaging very large volumes of data (tens of terabytes). To reduce the cost of a…
Dual link failure survivability with recovery time constraint: A Parallel cross connection backup route recovery strategy
Dinesh Kumar, Rajiv Kumar, Neeru Sharma
In this paper, we proposed a fast recovery strategy for a dual link failure in elastic optical network. The elastic optical network is a promising solution to meet the next generat…
Basis Pursuit Denoise with Nonsmooth Constraints
Robert Baraldi, Rajiv Kumar, Aleksandr Aravkin
Level-set optimization formulations with data-driven constraints minimize a regularization functional subject to matching observations to a given error level. These formulations ar…
Relaxation algorithms for matrix completion, with applications to seismic travel-time data interpolation
Robert Baraldi, Carl Ulberg, Rajiv Kumar +2
Travel time tomography is used to infer the underlying three-dimensional wavespeed structure of the Earth by fitting seismic travel time data collected at surface stations. Data in…
Simultaneous shot inversion for nonuniform geometries using fast data interpolation
Michelle Liu, Rajiv Kumar, Eldad Haber +1
Stochastic optimization is key to efficient inversion in PDE-constrained optimization. Using 'simultaneous shots', or random superposition of source terms, works very well in simpl…
Beating level-set methods for 3D seismic data interpolation: a primal-dual alternating approach
Rajiv Kumar, Oscar López, Damek Davis +2
Acquisition cost is a crucial bottleneck for seismic workflows, and low-rank formulations for data interpolation allow practitioners to `fill in' data volumes from critically subsa…