Modelling Latent Travel Behaviour Characteristics with Generative Machine Learning

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Abstract

In this paper, we implement an information-theoretic approach to travel behaviour analysis by introducing a generative modelling framework to identify informative latent characteristics in travel decision making. It involves developing a joint tri-partite Bayesian graphical network model using a Restricted Boltzmann Machine (RBM) generative modelling framework. We apply this framework on a mode choice survey data to identify abstract latent variables and compare the performance with a traditional latent variable model with specific latent preferences - safety, comfort, and environmental. Data collected from a joint stated and revealed preference mode choice survey in Quebec, Canada were used to calibrate the RBM model. Results show that a significant impact on model likelihood statistics and suggests that machine learning tools are highly suitable for modelling complex networks of conditional independent behaviour interactions.
Original languageEnglish
Title of host publication2018 21st International Conference on Intelligent Transportation Systems (ITSC)
PublisherIEEE/LEOS
Pages749-754
Number of pages6
ISBN (Electronic)9781728103235
ISBN (Print)978-1-7281-0324-2
DOIs
Publication statusPublished - 7 Nov 2018
Externally publishedYes
Event21st IEEE International Conference on Intelligent Transportation Systems, ITSC 2018 - Maui, HI, USA, Maui, United States
Duration: 4 Nov 20187 Nov 2018

Conference

Conference21st IEEE International Conference on Intelligent Transportation Systems, ITSC 2018
Country/TerritoryUnited States
CityMaui
Period4/11/187/11/18

Keywords

  • Mathematical model
  • Data models
  • Numerical analysis
  • Computational modeling
  • Stochastic processes
  • Estimation
  • Decision making
  • Restricted Boltzmann machine
  • latent variable model
  • semi-supervised learning
  • statistical methods

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