Meetups/Infra/2025-09-22

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Discussed data visualization algorithms, libraries, tools, and some sites leveraging similar techniques with interesting data.


Introductions[edit]

  • [name] - [background]. [goals for meetup, or interests to explore]
  • Jet -- currently trying to optimize some hashing or encryption stuff to get a better vanity domain on tor
  • Wheezy -- I like hacking, monero. Learning more about mining, running a node, private projects.
  • Daniel -- not here
  • Loren -- platform engineer, scraping, fighting scrapers for NB. Talk about NB new infra today
  • Frank -- interested in home labbing, self-hosted mediawiki, talk about anything but crypto
  • Kevin -- looking for something to flatten out high-dimensional data. HNSW -- . HDBSCAN + UMAP
  • Erik -- NB LTE radio
  • Jameson -- reformed business guy, learning to be a technical person. Have a startup doing fishing gear tracking.


Lesson or Demo[edit]

  • Read aloud: clarify for meetup. We are taking notes in a riseup pad (or I am--help appreciated, and links). We have meeting notes posted to the wiki. noisebridge.net, search Infra, or Meetups/Infra. (the Infrastructure page has a disambiguation link.)
  • Shell, web services, self-hosting, networking!
  • Data -- Kevin's projects
Using HNSW via HNSWlib (https://github.com/nmslib/hnswlib). "graph-based approximate nearest neighbor search technique used in many vector databases."
List of objects, query. For graph RAG, for some clients -- building chatbots -- with deep similarity embedding
Did a personal project learning about phones.

HDBSCAN: https://www.youtube.com/watch?v=dGsxd67IFiU&pp=ygUHaGRic2Nhbg%3D%3D
UMAP: https://www.youtube.com/watch?v=nq6iPZVUxZU&pp=ygUEdW1hcNIHCQngCQGHKiGM7w%3D%3D


  • NB LTE --
  • (?crypto)
gnod.com -- "Global Network of Discovery" -- taste maps & recommendations, from user-submitted data
productchart.com -- live filter/search & chart qty X vs qty Y


Questions, Discussion, or Coworking[edit]

  • [Issue]

For next time[edit]

Questions[edit]

Readings & Exercises[edit]

  • Readings
  • Exercises

Join online[edit]

  • Try it yourself!
    • Join libera.chat #nb-meetup-infra

https://www.noisebridge.net/wiki/Meetups/Infra

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