Programming Throwdown

Programming Throwdown

Patrick Wheeler and Jason Gauci

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Intro topic: Testing your car battery

News/Links:

Tech Layoffs still going on
- https://www.sfchronicle.com/tech/article/google-layoffs-california-companies-18465600.php
Real-time dreamy Cloudscapes with Volumetric Raymarching
- https://blog.maximeheckel.com/posts/real-time-cloudscapes-with-volumetric-raymarching/
Robot Rascals
- https://en.wikipedia.org/wiki/Robot_Rascals
Meta Quest 3
- https://www.theverge.com/23906313/meta-quest-3-review-vr-mixed-reality-headset

Book of the Show

Patrick:
- HyperLogLog Paper
  - https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/40671.pdf
Jason:
- Eureka! NVIDIA Research Breakthrough Puts New Spin on Robot Learning
  - https://blogs.nvidia.com/blog/2023/10/20/eureka-robotics-research/

Patreon Plug https://www.patreon.com/programmingthrowdown?ty=h

Tool of the Show

Patrick:
- Techtonica: https://store.steampowered.com/app/1457320/Techtonica/
Jason:
- ESP32 development board: https://amzn.to/3Qpmb20
- WEMOS

Topic: HyperLogLog

Motivation
- Cardinality Counting
LinearCounting
- Hash + expectation of collision based on how full
- Bloom Filter
LogLog
- Use first N bits as bucket
- Use max sequential 0s in each bucket
- Average
HyperLogLog
- Handle empty buckets
- Use correction factor like linear counting for low counts (number of empty buckets) and high counts
Distributing
- Transfer bucket counts