Fig. 8: Keywords Analysis in Alzheimer’s disease Digital Biomarkers Diagnostic Research.
From: Alzheimer’s disease digital biomarkers multidimensional landscape and AI model scoping review
a Temporal heatmap of high-frequency keywords. Color represents the proportion of keyword frequency for that year relative to the total frequency of the keyword. The more frequent the keyword, the redder the color, indicating a more mature topic. b Clustering diagram of keywords co-occurrence. Color coding is used to display clusters, with keywords within the same cluster sharing the same color.
