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A state-based inver...
A state-based inverse reinforcement learning approach to model activity-travel choices behavior with reward function recovery
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- Song, Yuchen (författare)
- KTH,Byggvetenskap,School of Transportation, Southeast University, Nanjing 211189, Jiangsu, China, Jiangsu
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- Li, Dawei (författare)
- School of Transportation, Southeast University, Nanjing 211189, Jiangsu, China, Jiangsu; Jiangsu Key Laboratory of Urban ITS, Southeast University, Nanjing 211189, Jiangsu, China, Jiangsu; Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Nanjing 211189, Jiangsu, China, Jiangsu
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- Ma, Zhenliang (författare)
- KTH,Transportplanering
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- Liu, Dongjie (författare)
- School of Transportation, Southeast University, Nanjing 211189, Jiangsu, China, Jiangsu
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- Zhang, Tong (författare)
- School of Transportation, Southeast University, Nanjing 211189, Jiangsu, China, Jiangsu
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(creator_code:org_t)
- Elsevier BV, 2024
- 2024
- Engelska.
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Ingår i: Transportation Research Part C. - : Elsevier BV. - 0968-090X .- 1879-2359. ; 158
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Behaviorally oriented activity-travel choices (ATC) modeling is a principal part of travel demand analysis. Traditional econometric and rule-based methods require explicit model structures and complex domain knowledge. While several recent studies used machine learning models, especially adversarial inverse reinforcement learning (IRL) models, to learn potential ATC patterns with less expert-designed settings, they lack a clear representation of rational ATC behavior. In this study, we propose a data-driven IRL framework based on the maximum causal approach to minimize f-divergences between expert and agent state marginal distributions, which provides a more sample-efficient measurement. In addition, we specify a separate state-only reward function and derive an analytical gradient of the f-divergence objective with respect to reward parameters to ensure good convergences. The method can recover a stationary reward function, which assures the agent to get close to the expert behavior when training from scratch. We validate the proposed model using cellular signaling data from Chongqing, China by comparing with baseline models (behavior cloning, policy-based, and reward-based models) in aspects of policy performance comparison, reward recovery, and reward transfer tasks. The experiment results indicate that the proposed model outperforms existing methods and is relatively less sensitive to the number of expert demonstrations. Qualitative analyses are provided on the fundamental ATC preferences on different features given the reward function recovered from the observed mobility trajectories, and on the learning behaviors under different choices of f-divergence.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Transportteknik och logistik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Transport Systems and Logistics (hsv//eng)
Nyckelord
- Activity-travel choices modeling
- Cellular signaling data
- Inverse reinforcement learning
- Reward function
- State marginal matching
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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