In the next part of the piece I’m going to try to make this all much more concrete, by looking at two real-world examples: PrivacyPass, and a brand-new proposal from Google to tie anonymous credentials to your driver’s license on Android phones.
HDBSCAN (clustering algorithm): 23-100x faster than the hdbscan Rust crate, 3x-10x faster than Python’s hdbscan
，更多细节参见PDF资料
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A modern reimplementation could improve interaction and visuals.