"The points in (e) are too small and sometimes it was difficult to confirm the patterns described in the main text. Because the intuitions are sparsely distributed in (e), how about making the points slightly bigger for visual clarity?"
Address Sadamori's comment in the text referencing fig 4, specifically the term "relative importance":
"could you rephrase the importance? relative importance is vague and I could not understand what it is exactly from this paragraph (albeit I know what CluSim is but as a reader who doesn't know CluSim). One or two sentences that explain the intuitive meaning of importance would help."
Specify what kind of hierarchical clustering, agglomerative? Divisive?. Put in the caption of fig 4 and the text referencing it.
TODO: