• Phys.org, Thursday, October 15, 2026 10:19 PM

The Media Bias Detector, a project that uses artificial intelligence to analyze news articles for topic, tone and political leaning, has published a data set consisting of more than 140,000 articles published during the 2024 U.S. presidential election year. Launched that year by Penn, the Media Bias Detector was focused on “the public-facing side of the project, while this paper describes the underlying scientific framework that powers the dashboard," says Samar Haider, lead researcher of the study. "We present a rigorous evaluation of our data annotation pipeline, [showcasing] illustrative findings from the underlying data that cannot yet be visualized on the dashboard."

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