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Modeling user's decision process through gaze behavior

Published: 31 October 2016 Publication History

Abstract

When we choose items among alternatives, we sometimes face a problem of mismatch between what we actually want and selected items. Therefore, if an interactive system can probe our interests from several modalities (e.g, eye movements and speech recognition) and decrease these mismatch, the system can be helpful for decision making with a satisfaction. In order to build such interactive decision support systems, the systems need to estimate both users' interests (selection criteria for that decision) and users' knowledge about the content domain. Here, not only users' knowledge but also users' selection criteria can be changed; for example, users' selection criteria converge as a reaction to system's recommendation. Therefore, the system needs to understand the dynamics of users' selection criteria in order to choose appropriate actions. What makes more difficult is that the dynamics of users' internal states themselves can change depend on a phase of decision making. Therefore, we need to address (a) how to represent users' internal states, (b) how to estimate and trace temporal changes of users' internal state, and (c) how to trace users' decision phase so that system can decide actions for decision assistance. In order to tackle these problems, we propose a novel representation of users' internal state, which consists of selection criteria and structures of users' knowledge about the content domain and a method to estimate these selection criteria from gaze behavior. In addition, we consider the multiscale dynamics of users' internal states so that the system can trace users' decision phase as temporal changes of dynamics of users' internal states.

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    cover image ACM Conferences
    ICMI '16: Proceedings of the 18th ACM International Conference on Multimodal Interaction
    October 2016
    605 pages
    ISBN:9781450345569
    DOI:10.1145/2993148
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    Published: 31 October 2016

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    Author Tags

    1. Decision making
    2. aspect model
    3. gaze information
    4. multimodal dialogue strategy

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