Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Estimating locomotor demands during team play from broadcast-derived
  tracking data   The introduction of optical tracking data across sports has given rise to the
ability to dissect athletic performance at a level unfathomable a decade ago.
One specific area that has seen substantial benefit is sports science, as high
resolution coordinate data permits sports scientists to have to-the-second
estimates of external load metrics, such as acceleration load and high speed
running distance, traditionally used to understand the physical toll a game
takes on an athlete. Unfortunately, collecting this data requires installation
of expensive hardware and paying costly licensing fees to data providers,
restricting its availability. Algorithms have been developed that allow a
traditional broadcast feed to be converted to x-y coordinate data, making
tracking data easier to acquire, but coordinates are available for an athlete
only when that player is within the camera frame. Obviously, this leads to
inaccuracies in player load estimates, limiting the usefulness of this data for
sports scientists. In this research, we develop models that predict offscreen
load metrics and demonstrate the viability of broadcast-derived tracking data
for understanding external load in soccer.

3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th