Abstract
Nowadays, people with depression reveal their mental conditions on social webs for emotional relief. Detection of suicide risk and depression content can save society and the young generation. A person at risk needs immediate medical attention, so early detection of depressive content with NLP is an important research area. We propose a novel framework to differentiate between depression and suicidal risk content with the fastText embedding for contextual analysis, TF-IDF vector for the relevance of terms, and machine learning classifier XGBoost for accurate classification. This novel approach achieves 0.78 AUC and 0.71 weighted F1-score for this Reddit dataset and also increases accuracy, weighted F1- score against one baseline model. Our experiments and analysis exhibit strong performance against various embedding models and classifiers for this challenging problem.
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