Transfer Learning for Risk Classification of Social Media Posts: Model Evaluation Study

Derek Howard   ^{1, 2} , MSc ;   Marta M Maslej   ^{1, 2} , PhD ;   Justin Lee   ³ , BSc ;   Jacob Ritchie   ^{1, 4} , MSc ;   Geoffrey Woollard   ^{5, 6} , MSc ;   Leon French   ^{1, 2, 7, 8} , PhD

¹ Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada

² Krembil Centre for Neuroinformatics, Centre for Addiction and Mental Health, Toronto, ON, Canada

³ Department of Biochemistry, University of Toronto, Toronto, ON, Canada

⁴ Department of Computer Science, University of Toronto, Toronto, ON, Canada

⁵ Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada

⁶ Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada

⁷ Institute for Medical Science, University of Toronto, Toronto, ON, Canada

⁸ Division of Brain and Therapeutics, Department of Psychiatry, University of Toronto, Toronto, ON, Canada