Reading up on algorithms
6 deep · digging since dec 02, 25
- Decision trees – the unreasonable power of nested decision rules
Decision trees use entropy-based information gain to recursively split data into pure regions, balancing interpretability and speed against the stair-stepping problem for linear boundaries.
- Facebook is cooked
A user reactivating a long-dormant Facebook account finds the feed overwhelmed by AI-generated slop and spam, a phenomenon commenters attribute to algorithmic cold starts rather than platform-wide decay.
- Maze Algorithms (2017)
A visual and algorithmic deep-dive into maze generation techniques, covering recursive backtracking, Prim's, Kruskal's, Wilson's, and others with live demos.
- ASCII characters are not pixels: a deep dive into ASCII rendering
A developer built an ASCII renderer that uses shape vectors and contrast enhancement to achieve sharp edges, overcoming blurriness from treating characters as pixels.
- Punycode: My New Favorite Algorithm - Ian Duncan - Ian Duncan
Punycode uses adaptive bias adjustment, delta compression, and variable-length base-36 encoding to efficiently encode Unicode into ASCII for DNS without shared state.