Abstract: Research shows how human perception can be affected by several factors, hindering the cognitive flow of user reasoning and consequently how the user derives a choice of direction as an outcome. Among these factors, trust remains a challenge in visualization design due to the limited evidence regarding what might lead a user to trust in visualization without a broad elaboration of the information. To better understand the trust-building process, we conducted two studies focused on visualization trustworthiness to investigate whether graphical features of a chart affect the user's perception of how trustworthy a graph is. Additionally, we leverage personality constructs to understand whether the trust processes are dependent on personality factors and enhance the user profile of the decision-maker.

Bio: Tomás Alves received a Master's degree in Information Systems and Computer Engineering from the IST/ULisbon, in 2017, and is currently working towards a Ph.D. degree at the same university. He is also co-coordinator at the HUMAN Lab at INESC-ID. His research focuses on developing personality-aware information visualization systems. He is also interested in game-based task difficulty adjustment techniques.

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