Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inferring the Spatial Distribution of Physical Activity in Children
  Population from Characteristics of the Environment   Obesity affects a rising percentage of the children and adolescent
population, contributing to decreased quality of life and increased risk for
comorbidities. Although the major causes of obesity are known, the obesogenic
behaviors manifest as a result of complex interactions of the individual with
the living environment. For this reason, addressing childhood obesity remains a
challenging problem for public health authorities. The BigO project
(https://bigoprogram.eu) relies on large-scale behavioral and environmental
data collection to create tools that support policy making and intervention
design. In this work, we propose a novel analysis approach for modeling the
expected population behavior as a function of the local environment. We
experimentally evaluate this approach in predicting the expected physical
activity level in small geographic regions using urban environment
characteristics. Experiments on data collected from 156 children and
adolescents verify the potential of the proposed approach. Specifically, we
train models that predict the physical activity level in a region, achieving
81% leave-one-out accuracy. In addition, we exploit the model predictions to
automatically visualize heatmaps of the expected population behavior in areas
of interest, from which we draw useful insights. Overall, the predictive models
and the automatic heatmaps are promising tools in gaining direct perception for
the spatial distribution of the population's behavior, with potential uses by
public health authorities.

26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc