Show HN: Community Detection on Bluesky

#1

Post by thijser » Tue, Feb 11, 2025, 8:39 PM UTC

We ran the Leuven community detection algorithm on popular users on Bluesky (where the graph has edges determined by Jaccard similarity of a users' followers). We identified 118 communities and based on the names and descriptions of the top 10-20 users had LLMs generate title and descriptions for them. There are communities like "Feline enthusiasts", "Web Professionals", a bunch of NSFW ones and quite many communities are many different flavors of progressive/liberal activists.

Show HN: Community Detection on Bluesky
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Re: Show HN: Community Detection on Bluesky

#2

Post by pogue » Wed, Feb 12, 2025, 4:01 AM UTC

I found all my friends under "Internet Weirdos" but I'm wondering why so few of us (myself included) are included.

Re: Show HN: Community Detection on Bluesky

#3

Post by thijser » Wed, Feb 12, 2025, 9:23 AM UTC

pogue wrote: post #2

I found all my friends under "Internet Weirdos" but I'm wondering why so few of us (myself included) are included.

At this point I only included accounts with >20,000 followers and the community page lists the 20 most 'central' users to each community even if there are more people included in the community.

"Internet Weirdos" sounds kind of negative, sorry about that, I'll see if the LLM can come up with something better. Or do you have a suggestion of what is a good name for your community?

Re: Show HN: Community Detection on Bluesky

#4

Post by d3Xt3r » Wed, Feb 12, 2025, 7:50 PM UTC

Surprised there's no Linux and open source communities. :(

Re: Show HN: Community Detection on Bluesky

#5

Post by susiecambria » Thu, Feb 13, 2025, 4:11 AM UTC

Super useful. Thank you.

Re: Show HN: Community Detection on Bluesky

#6

Post by foobarbecue » Thu, Feb 13, 2025, 2:18 PM UTC

thijser wrote: post #3

pogue wrote: post #2

I found all my friends under "Internet Weirdos" but I'm wondering why so few of us (myself included) are included.

At this point I only included accounts with >20,000 followers and the community page lists the 20 most 'central' users to each community even if there are more people included in the community. "Internet Weirdos" sounds kind of negative, sorry about that, I'll see if the LLM can come up with something better. Or do you have a suggestion of what is a good name for your community?

"Extremist Voices" is worse! Looks like your your LLM meant "researchers studying extremism".