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Article overview
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Optimizing Online Matching for Ride-Sourcing Services with Multi-Agent Deep Reinforcement Learning | Jintao Ke
; Feng Xiao
; Hai Yang
; Jieping Ye
; | Date: |
17 Feb 2019 | Abstract: | Ride-sourcing services are now reshaping the way people travel by effectively
connecting drivers and passengers through mobile internets. Online matching
between idle drivers and waiting passengers is one of the most key components
in a ride-sourcing system. The average pickup distance or time is an important
measurement of system efficiency since it affects both passengers’ waiting time
and drivers’ utilization rate. It is naturally expected that a more effective
bipartite matching (with smaller average pickup time) can be implemented if the
platform accumulates more idle drivers and waiting passengers in the matching
pool. A specific passenger request can also benefit from a delayed matching
since he/she may be matched with closer idle drivers after waiting for a few
seconds. Motivated by the potential benefits of delayed matching, this paper
establishes a two-stage framework which incorporates a combinatorial
optimization and multi-agent deep reinforcement learning methods. The
multi-agent reinforcement learning methods are used to dynamically determine
the delayed time for each passenger request (or the time at which each request
enters the matching pool), while the combinatorial optimization conducts an
optimal bipartite matching between idle drivers and waiting passengers in the
matching pool. Two reinforcement learning methods, spatio-temporal multi-agent
deep Q learning (ST-M-DQN) and spatio-temporal multi-agent actor-critic
(ST-M-A2C) are developed. Through extensive empirical experiments with a
well-designed simulator, we show that the proposed framework is able to
remarkably improve system performances. | Source: | arXiv, 1902.6228 | Services: | Forum | Review | PDF | Favorites |
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