Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Development of Smartphone Application for Evaluation of Passenger
  Comfort   Nowadays, smartphones are not utilized for communications only. Smartphones
are equipped with a lot of sensors that can be utilized for different purposes.
For example, inertial sensors have been used extensively in recent years for
measuring and monitoring performance in many different applications. Basically,
data from the sensors are utilized for estimation of smartphone orientation.
There is a lot of applications which can utilize these data. This paper deals
with an algorithm developed for inertial sensors data utilization for vehicle
passenger comfort assessment.

10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin