Posts by Collection



Ethical Considerations of Photosensitive Epilepsy in Mixed Reality

Published in CHI 2020 Workshop: Exploring Potentially Abusive Ethical, Social and Political Implications of Mixed Reality Research in HCI, 2020

As public interest in virtual and augmented reality increases, so do the risks faced by users with photosensitive epilepsy, a neurological condition where seizures are triggered by specific kinds of light stimuli. In this workshop paper we draw from photosensitive epilepsy research to create recommendations for simple steps mixed reality developers can take to minimize photosensitive risk in their systems in addition to issuing a broader call for further research into understanding photosensitive epilepsy in the context of mixed reality.

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DebateVis: Visualizing Political Debates for Non-Expert Users

Published in IEEE VIS 2020 Conference Proceedings (Short Paper), 2020

Political debates provide an important opportunity for voters to observe candidate behavior, learn about issues, and make voting decisions. In this paper we contribute reflections and results of an 18-month design study through an interdisciplinary collaboration with journalism and political science researchers. We characterize task and data abstractions for visualizing political debate transcripts for the casual user, and present a novel tool (DEBATEVIS) to help non-expert users explore and analyze debate transcripts.

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Generating Seizure-Inducing Sequences with Interactive Visualizations

Published in IEEE VIS 2020 Poster, 2020

Interactive visualizations are often built to draw the eye towards pertinent information with attention-grabbing pops of color and patterns. These techniques, though helpful in engaging the average user and nudging them towards important information, can be harmful to users with photosensitive epilepsy, who may experience seizures when exposed to content with flashes, transitions to and from saturated red, or repeated patterns.

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Detecting and Defending Against Seizure-Inducing GIFs in Social Media

Published in ACM CHI 2021 Conference Proceedings (Full Paper), 2021

Despite recent improvements in online accessibility, the Internet remains an inhospitable place for users with photosensitive epilepsy, a chronic condition in which certain light stimuli can trigger seizures and even lead to death in extreme cases. In this paper, we explore how current risk detection systems have allowed attackers to take advantage of design oversights and target vulnerable users with photosensitivity on popular social media platforms.

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Effective Use of Likert Scales in Visualization Evaluations: A Systematic Review

Published in Eurovis/Computer Graphics Forum, 2022

Likert scales are often used in visualization evaluations to produce quantitative estimates of subjective attributes, such as ease of use or aesthetic appeal. However, the methods used to collect, analyze, and visualize data collected with Likert scales are inconsistent among evaluations in visualization papers. In this paper, we examine the use of Likert scales as a tool for measuring subjective response in a systematic review of 134 visualization evaluations published between 2009 and 2019.

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Photosensitive Accessibility for Interactive Data Visualizations

Published in IEEE VIS 2022 Conference Proceedings (Full Paper), 2022

Accessibility guidelines place restrictions on the use of animations and interactivity on webpages to lessen the likelihood of webpages inadvertently producing sequences with flashes, patterns, or color changes that may trigger seizures for individuals with photosensitive epilepsy. Online data visualizations often incorporate elements of animation and interactivity to create a narrative, engage users, or encourage exploration. In this paper, we examine the role of animation and interaction in data visualizations within the context of photosensitive accessibility and contribute a model for ensuring photosensitive safety without compromising design integrity.

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The State of the Art in BGP Visualization Tools: A Mapping of Visualization Techniques to Cyberattack Types

Published in IEEE VIS 2022 Conference Proceedings (Full Paper), 2022

Internet routing is largely dependent on Border Gateway Protocol (BGP). However, BGP does not have any inherent authentication or integrity mechanisms that help make it secure. Visualization tools provide an attractive alternative in lieu of traditional security approaches. The purpose of this study is to provide an initial formalization of methods and visualization techniques for BGP cybersecurity analysis.

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Augmented Reality for Scholarly Publication of 3D Visualizations in Astronomy: An Empirical Evaluation

Published in IEEE VIS 2023 Conference Proceedings (Short Paper), 2023

We present a mixed methods user study evaluating augmented reality (AR) as a visualization technique for use in astronomy journal publications. This work is motivated by the highly spatial nature of scientific visualizations employed in astronomy, including spatial reasoning tasks for hypothesis generation and scientific communications.

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Unraveling the Design Space of Immersive Analytics: A Systematic Review

Published in IEEE VIS 2023 Conference Proceedings (Full Paper), 2023

Immersive analytics has emerged as a promising research area, leveraging advances in immersive display technologies and techniques, such as virtual and augmented reality, to facilitate data exploration and decision-making. This paper presents a systematic literature review of 73 studies published between 2013-2022 on immersive analytics systems and visualizations, aiming to identify and categorize the primary dimensions influencing their design.

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Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.