Margaret Mitchell

Margaret Mitchell is a computer scientist who works on algorithmic bias and fairness in machine learning. She earned a bachelor's degree in linguistics from Reed College in 2005, a master's in computational linguistics from the University of Washington in 2009, and a PhD from the University of Aberdeen in 2013 with a thesis on generating reference to visible objects.

She worked at Johns Hopkins University and then Microsoft Research from 2013, where she led the Seeing AI project, an app that narrates text and images for people who are visually impaired. In 2016 she joined Google Research, where she founded and co-led the Ethical AI team with Timnit Gebru. She is best known for introducing model cards for transparent reporting of what a model is intended for, and for debiasing methods based on adversarial learning. Google fired her in 2021 after an investigation following Gebru's dismissal, and she joined Hugging Face in late 2021.