Table 1.
Social media data acquisition and processing results.
Fig 1.
Stress feature extraction model based on BERT-LDA.
Table 2.
Topic-Word" distribution of stress features of postgraduate students (the probability distribution of words in parentheses).
Fig 2.
Model of Stress Text NER Based on BERT-BiLSTM-CRF.
Table 3.
Data set statistics.
Table 4.
Overall comparison of effects of named entity recognition models.
Table 5.
Test results of test set on the model.
Fig 3.
Multidimensional stress profile of postgraduate students.
Fig 4.
Fine-grained analysis of stress on the dimensions of SEX and EDU.
Fig 5.
Fine-grained stress analysis on the dimensions of EDU and ORG.