Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A parametric variogram model bridging between stationary and
  intrinsically stationary processes   A simple variogram model with two parameters is presented that includes the
power variogram for the fractional Brownian motion, a modified De Wijsian
model, the generalized Cauchy model and the multiquadrics model. One parameter
controls the smoothness of the process. The other parameter allows for a smooth
parametrization between stationary and intrinsically stationary second order
processes in a Gaussian framework, or between mixing and non-ergodic max-stable
processes when modeling spatial extremes by a Brown-Resnick process.

26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess