mats

Hessian eigenspectrum dendrograms for tracking circuit formation during neural network training

Arknights Toolbox for LINE

Converts list of daily 24-hour PM2.5 FRM data to SMAT-CE "Official" input file format

Hankel matrix analysis of belief state geometry in transformers - companion code for Hankel world-models blog series

Preregistered attempt to build positive controls for the model-forensics protocol (Singh et al. 2026). Prompted dispositions always leaked into the CoT, redacting the motive left detection at 1.00, and the investigator still caught it from the final answer alone. Lessons for building controls that can actually test reliance on the trace.

Houdini Guides Website

Interactive exploration of the union of manifolds hypothesis

Sealed, preregistered benchmark for black-box model-diffing agents: five LoRA finetunes of Qwen3.5-9B (one null, three planted behaviours, one dropped backdoor), audited blind by my implementation of a recipe from Neel Nanda's group and four other conditions. MATS 12 application.

Interactive spectral geometry visualization on MNIST - companion code for The Spectral Structure of Natural Data

N-point correlators and polyspectra on MNIST - companion code for Power Laws Are Not Enough