Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: WaRIance: wavefield reconstruction inversion with stochastic variable
  projection   We propose a variation on wavefield reconstruction inversion for seismic
inversion, which takes advantage of randomized linear algebra as a way to
overcome the typical limitations of conventional inversion techniques.
Consequently, we can aim both to robustness towards convergence stagnation and
large-sized 3D applications. The central idea hinges on approximating the
optimal slack variables involved in wavefield reconstruction inversion via a
low-rank stochastic approximation of the wave-equation error covariance. As a
result, we obtain a family of inversion methods parameterized by a given model
covariance (suited for the problem at hand) and the rank of the related
stochastic approximation sketch. The challenges and advantages of our proposal
are demonstrated with some numerical experiments.

24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat