Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatio-Temporal Data Fusion for Massive Sea Surface Temperature Data
  from MODIS and AMSR-E Instruments   Remote sensing data have been widely used to study various geophysical
processes. With the advances in remote-sensing technology, massive amount of
remote sensing data are collected in space over time. Different satellite
instruments typically have different footprints, measurement-error
characteristics, and data coverages. To combine datasets from different
satellite instruments, we propose a dynamic fused Gaussian process (DFGP) model
that enables fast statistical inference such as filtering and smoothing for
massive spatio-temporal datasets in a data-fusion context. Based upon a
spatio-temporal-random-effects model, the DFGP methodology represents the
underlying true process with two components: a linear combination of a small
number of basis functions and random coefficients with a general covariance
matrix, together with a linear combination of a large number of basis functions
and Markov random coefficients. To model the underlying geophysical process at
different spatial resolutions, we rely on the change-of-support property, which
also allows efficient computations in the DFGP model. To estimate model
parameters, we devise a computationally efficient stochastic
expectation-maximization (SEM) algorithm to ensure its scalability for massive
datasets. The DFGP model is applied to a total of 3.7 million sea surface
temperature datasets in the tropical Pacific Ocean for a one-week time period
in 2010 from MODIS and AMSR-E instruments.

15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg