Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GeoTravel: Harvesting Ambient Geographic Footprints from GPS
  Trajectories   This study is about harvesting point of interest from GPS trajectories.
Trajectories are the paths that moving objects move by follow through space in
a function of time while GPS trajectories generally are point-sequences with
geographic coordinates, time stamp, speed and heading. User can get information
from GPS enable device. For example, user can acquire present location, search
the information around them and design driving routes to a destination and thus
design travel itineraries. By sharing GPS logs among each other, people are
able to find some places that attract them from other people's travel route.
Analysis on the GPS logs can get the point of interest that is popular. By
present the point of interest, user can choose travel place easily and the
travel itineraries is plan based on the user preferences.

25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph