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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 26 / No. 2: Twenty-Fourth Innovative Applications of Artificial Intelligence Conference

TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems

March 8, 2023

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Authors

Zhengyu Yin

University of Southern California


Albert Jiang

University of Southern California


Matthew Johnson

University of Southern California


Milind Tambe

University of Southern California


Christopher Kiekintveld

University of Texas at El Paso


Kevin Leyton-Brown

University of British Columbia


Tuomas Sandholm

Carnegie Mellon University


John Sullivan

Los Angeles County Sheriff’s Department


DOI:

10.1609/aaai.v26i2.18975


Abstract:

In proof-of-payment transit systems, passengers are legally required to purchase tickets before entering but are not physically forced to do so. Instead, patrol units move about the transit system, inspecting the tickets of passengers, who face fines if caught fare evading. The deterrence of such fines depends on the unpredictability and effectiveness of the patrols. In this paper, we present TRUSTS, an application for scheduling randomized patrols for fare inspection in transit systems. TRUSTS models the problem of computing patrol strategies as a leader-follower Stackelberg game where the objective is to deter fare evasion and hence maximize revenue. This problem differs from previously studied Stackelberg settings in that the leader strategies must satisfy massive temporal and spatial constraints; moreover, unlike in these counterterrorism-motivated Stackelberg applications, a large fraction of the ridership might realistically consider fare evasion, and so the number of followers is potentially huge. A third key novelty in our work is deliberate simplification of leader strategies to make patrols easier to be executed. We present an efficient algorithm for computing such patrol strategies and present experimental results using real-world ridership data from the Los Angeles Metro Rail system. The Los Angeles County Sheriff’s department has begun trials of TRUSTS.

Topics: AAAI

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HOW TO CITE:

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems Proceedings of the AAAI Conference on Artificial Intelligence, 26 (2012) 2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems AAAI 2012, 2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan (2012). TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems. Proceedings of the AAAI Conference on Artificial Intelligence, 26, 2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan. TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems. Proceedings of the AAAI Conference on Artificial Intelligence, 26 2012 p.2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan. 2012. TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems. "Proceedings of the AAAI Conference on Artificial Intelligence, 26". 2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan. (2012) "TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems", Proceedings of the AAAI Conference on Artificial Intelligence, 26, p.2348

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan, "TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems", AAAI, p.2348, 2012.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan. "TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems". Proceedings of the AAAI Conference on Artificial Intelligence, 26, 2012, p.2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan. "TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems". Proceedings of the AAAI Conference on Artificial Intelligence, 26, (2012): 2348.

Zhengyu Yin|| Albert Jiang|| Matthew Johnson|| Milind Tambe|| Christopher Kiekintveld|| Kevin Leyton-Brown|| Tuomas Sandholm|| John Sullivan. TRUSTS: Scheduling Randomized Patrols for Fare Inspection in Transit Systems. AAAI[Internet]. 2012[cited 2023]; 2348.


ISSN: 2374-3468


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Artificial Intelligence 1900 Embarcadero Road, Suite
101, Palo Alto, California 94303 All Rights Reserved

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