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- W4288333602 abstract "Specifying utility functions is a key step towards applying the discrete choice framework for understanding the behaviour processes that govern user choices. However, identifying the utility function specifications that best model and explain the observed choices can be a very challenging and time-consuming task. This paper seeks to help modellers by leveraging the Bayesian framework and the concept of automatic relevance determination (ARD), in order to automatically determine an optimal utility function specification from an exponentially large set of possible specifications in a purely data-driven manner. Based on recent advances in approximate Bayesian inference, a doubly stochastic variational inference is developed, which allows the proposed DCM-ARD model to scale to very large and high-dimensional datasets. Using semi-artificial choice data, the proposed approach is shown to very accurately recover the true utility function specifications that govern the observed choices. Moreover, when applied to real choice data, DCM-ARD is shown to be able discover high quality specifications that can outperform previous ones from the literature according to multiple criteria, thereby demonstrating its practical applicability." @default.
- W4288333602 created "2022-07-28" @default.
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- W4288333602 date "2019-06-10" @default.
- W4288333602 modified "2023-09-24" @default.
- W4288333602 title "Bayesian Automatic Relevance Determination for Utility Function Specification in Discrete Choice Models" @default.
- W4288333602 doi "https://doi.org/10.48550/arxiv.1906.03855" @default.
- W4288333602 hasPublicationYear "2019" @default.
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