Identifying X (Formerly Twitter) Posts Relevant to Dementia and COVID-19: Machine Learning Approach

Mehrnoosh Azizi; Ali Akbar Jamali; Raymond J Spiteri

doi:10.2196/49562

Figure 2

An external file that holds a picture, illustration, etc.
Object name is formative_v8i1e49562_fig2.jpg

Receiver operating characteristic curves for competing machine learning algorithms for training (A) and test sets (B). The corresponding area under the curve values are given for each algorithm. ROC: receiver operating characteristic; LR: logistics regression; AUC: area under the curve; NB: Naïve Bayes; MNB: Multinomial Naïve Bayes; kNN: k-nearest neighbor; SVM: support vector machine; DT: decision tree; RF: random forest; BERT: Bidirectional Encoder Representations from Transformers; ALBERT: A Lite BERT.