Figure 1
From: Forecasting the onset and course of mental illness with Twitter data
ROC curve and top predictors for Random Forests algorithm, for depression and PTSD samples (Ndepr = 74, 990, Nptsd = 54,197). Predictor names ending in “_happy” are happiness measures; LIWC predictors37 refer to the occurrence of semantic categories (eg. LIWC_ingest refers to food and eating words, LIWC_swear refers to profanity).
