Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Geofence and Network Proximity   Many of modern location-based services are often based on an area or place as
opposed to an accurate determination of the precise location. Geo-fencing
approach is based on the observation that users move from one place to another
and then stay at that place for a while. These places can be, for example,
commercial properties, homes, office centers and so on. As per geo-fencing
approach they could be described (defined) as some geographic areas bounded by
polygons. It assumes users simply move from fence to fence and stay inside
fences for a while. In this article we replace geo-based boundaries with
network proximity rules. This new approach let us effectively deploy location
based services indoor and provide a significant energy saving for mobile
devices comparing with the traditional methods.

34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
19
The categories of this paper are: eess
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph