Contextual Gaps in Machine Learning for Mental Illness Prediction: The Case of Diagnostic Disclosures
Stevie Chancellor,
Jessica L. Feuston,
Jayhyun Chang
Abstract:Getting training data for machine learning (ML) prediction of mental illness on social media data is labor intensive. To work around this, ML teams will extrapolate proxy signals, or alternative signs from data to evaluate illness status and create training datasets. However, these signals' validity has not been determined, whether signals align with important contextual factors, and how proxy quality impacts downstream model integrity. We use ML and qualitative methods to evaluate whether a popular proxy sign… Show more
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