Classification of suicidal ideation severity from Twitter messages using machine learning. - Pantaporn Benjachairat; Twittie Senivongse; Nattasuda Taephant; Jiratchaya Puvapaisankit; Chonlakorn Maturosjamnan; Thanakorn Kultananawat (Int. J. Inf. Manag. Data Insights, 2024)