An Exploratory Study of User Perceptions of Information Across Social Media Platforms
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Zoe Loh, Ghazal Zand, Ahmed S. Arif
We examined how user perceptions of information quality vary across platforms, specifically, Facebook, Twitter/X, and LinkedIn. We found that users generally trust information on social media regardless of the platform. However, we also found that participants tended to have low accuracy in detecting fake news. Publication in Graphics Interface Proceedings |
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ECG Classification: Identifying Abnormalies by Leveraging Data for Diagnostic Accuracy
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Gbocho Masato Terasaki, Zoe Loh, Ahmadzaki Arjmand, Ryan Nguyen, Gryphon Kumfert
As participants of the 2023 Lawrence Livermore National Lab Data Science Challenge, we compared the performance of various machine learning techniques for classification of irregular ECG signals (heartbeats) and reconstructed activation times on a simulated heart. Convolutional neural network had the highest accuracy among the tested techniques with a 16% gain in mean accuracy over logistic regression. |
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Comparisons of Physical and Digital Media's Effect on Recall
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Zoe Loh, Helia Hosseinpour, Lace Padilla, Spencer C. Castro
We assessed how different visual displays and media impact how people process and remember information. Participants read excerpts of a climate change report in the form of a simulated social media scrolling feed and a PDF presented either on a computer screen or on physical paper. We found that participants reported lower mental effort for recalling information from the scrolling feed and for the physical medium. However, we did not find a difference between formats or media for recall performance or physiological effort. Master's Thesis |
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Internet Shutdowns and the Lifecycle of a Protest
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Zoe Loh, Andrea Montano, Donya Vafanejad
In recent years, social media has increasingly been used to discuss protests such as Black Lives Matter, the Farmers Protest, and the recent Iran Protest. For some protests, there are also reports of internet shutdowns in response to discussing the protests online. We wanted to better understand modern protests by investigating these internet shutdowns as well as the social media discussion surrounding a protest. Project |
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Working Memory Control Predicts Fixation Duration in Scene-viewing
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Zoe Loh, Elizabeth H. Hall, Deborah A. Cronin, John M. Henderson
We examined the relationship between working memory and fixation durations during scene-viewing. We found that participants with worse working memory control tended to make more very long fixations when viewing scenes. Publication in Psychological Research |
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