Furthermore, assessment of temporal consistency indicates a clear trend toward convergence, with thematic shifts in each cluster becoming less frequent, consistent with the broader patterns observed when studying all documents.
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A natural language processing-driven map of the aging research landscape.
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In contrast, clusters with a negative trend demonstrate greater variability, reflecting ongoing thematic shifts and relatively higher introduction of new concepts within those research areas.
Interestingly, CNS is the only tissue-specific topic that exhibits a positive trend over time.
Overall, we observed an increasing trend towards thematic consolidation across most clusters within the BoA research field.