Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Viral marketing as epidemiological model   In epidemiology, an epidemic is defined as the spread of an infectious
disease to a large number of people in a given population within a short period
of time. In the marketing context, a message is viral when it is broadly sent
and received by the target market through person-to-person transmission. This
specific marketing communication strategy is commonly referred as viral
marketing. Due to this similarity between an epidemic and the viral marketing
process and because the understanding of the critical factors to this
communications strategy effectiveness remain largely unknown, the mathematical
models in epidemiology are presented in this marketing specific field. In this
paper, an epidemiological model SIR (Susceptible- Infected-Recovered) to study
the effects of a viral marketing strategy is presented. It is made a comparison
between the disease parameters and the marketing application, and simulations
using the Matlab software are performed. Finally, some conclusions are given
and their marketing implications are exposed: interactions across the
parameters are found that appear to suggest some recommendations to marketers,
as the profitability of the investment or the need to improve the targeting
criteria of the communications campaigns.

9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int