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Detection of Suicidality Among Opioid Users on Reddit: Machine Learning–Based Approach
Many of these focus on current mental health concerns, such as depression and anxiety, and seek to analyze the linguistic features of post content and employ traditional methods such as N-grams, latent Dirichlet allocation topic modeling, linguistic inquiry and word count, term frequency-inverse document frequency (TF-IDF), and word embeddings to extract and analyze the emotional and mental states of Reddit users [25,27,29-31].
J Med Internet Res 2020;22(11):e15293
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