Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial Tweedie exponential dispersion models   This paper proposes a general modeling framework that allows for uncertainty
quantification at the individual covariate level and spatial referencing,
operating withing a double generalized linear model (DGLM). DGLMs provide a
general modeling framework allowing dispersion to depend in a link-linear
fashion on chosen covariates. We focus on working with Tweedie exponential
dispersion models while considering DGLMs, the reason being their recent
wide-spread use for modeling mixed response types. Adopting a regularization
based approach, we suggest a class of flexible convex penalties derived from an
un-directed graph that facilitates estimation of the unobserved spatial effect.
Developments are concisely showcased by proposing a co-ordinate descent
algorithm that jointly explains variation from covariates in mean and
dispersion through estimation of respective model coefficients while estimating
the unobserved spatial effect. Simulations performed show that proposed
approach is superior to competitors like the ridge and un-penalized versions.
Finally, a real data application is considered while modeling insurance losses
arising from automobile collisions in the state of Connecticut, USA for the
year 2008.

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
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga