Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimizing Pricing, Repositioning, En-Route Time, and Idle Time in
  Ride-Hailing Systems   In ride-hailing systems, en-route time refers to the time that elapses from
the moment a car is dispatched to pick up a rider until the rider is picked up.
A fundamental phenomenon in ride-hailing systems is that there is a trade-off
between en-route time and the time that a car waits for a dispatch. In short,
if cars spend little time idle waiting for a dispatch, then few cars are
available when a rider makes a request, and thus the mean distance between a
rider and the closest available car is long, which means that en-route time is
long. This phenomenon is of great importance in ride-hailing, because en-route
time increases rapidly as the number of idle cars decreases, and every minute
that a car spends en-route is one minute less that the car can transport
riders. In spite of this, the existing literature on price optimization for
ride-hailing, and on repositioning optimization for ride-hailing, ignores
en-route time. Initial attempts to take this trade-off for the mean en-route
time into account when considering price optimization or repositioning
optimization all resulted in intractable optimization problems. Then we found a
way to reformulate a simultaneous price and repositioning optimization problem,
that takes this trade-off for the distribution of en-route time into account,
as a tractable convex optimization problem. We show how the optimal solution
can be used to construct policies that perform much better in simulations than
the policies proposed in previous papers.

30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an