Fig 1.
Experimental diagram.
Fig 2.
Detailed schematic diagram of the comparison of evaluation metrics between models.
Table 1.
Statistical comparison of evaluation metrics among topic models.
Fig 3.
Comparison of coherence values based on the number of topics from the LexisNexis data.
Fig 4.
Comparison of coherence values based on the number of topics from the Web of Science data.
Table 2.
The hyperparameters used in the experiment.
Table 3.
Topic representations of LLM from LexisNexis data.
Fig 5.
Similarity matrix derived from topic modeling results on LexisNexis data.
Fig 6.
Distance between topics from topic modeling results on LexisNexis data.
Table 4.
Topic representations of LLM from Web of Science data.
Fig 7.
Similarity matrix derived from topic modeling results on Web of Science data.
Fig 8.
Distance between topics from topic modeling results on Web of Science data.
Table 5.
Statistical analysis of the similarity between topics on LexisNexis and Web of Science data.