02 Blog
Notes.
Long-form thoughts on Rust, GPU, vector search, and the occasional graphics aside.
- Polynomial autoencoder →
A closed-form autoencoder: PCA encoder + quadratic Ridge decoder. On FiQA it gives 4× compression of mxbai-embed-large-v1 at -0.85 p.p. NDCG@10, +2.73 p.p. over PCA. No SGD, no neural networks.
- TurboQuant in Qdrant: tricks and ideas behind the implementation →
How we implemented the MSE variant of TurboQuant in Qdrant: renormalization, pure reversible rotation, anisotropy compensation, and support for L2 / unnormalized dot.