clustering – Why does larger perplexity tend to produce clearer …

The larger the perplexity, the more non-local information will be retained in the dimensionality reduction result. Yes, I believe that this is a correct intuition. The way I think about perplexity parameter in t-SNE is that it sets the effective number of neighbours that each point is attracted to.

https://stats.stackexchange.com/questions/399868/why-does-larger-perplexity-tend-to-produce-clearer-clusters-in-t-sne