Tagged "machine learning"

Outguessing a Riffle Shuffle

Jun 24, 2026   |   18 min read   |   technical

The folklore says seven riffle shuffles are enough to randomize a deck of cards. I trained a small transformer to guess the next card after k shuffles, gave it the deck's starting order, and let it watch every card as it was dealt. One shuffle is wildly predictable; the edge shrinks fast, but a faint, statistically real signal survives all the way out to eleven shuffles.

The Bicameral Model

May 11, 2026   |   17 min read   |   technical

Two frozen language models wired together through a small trainable interface on their hidden states, so they can share their thinking as it happens instead of trading text.

Semantic Similarity Using Sentence Transformers

Mar 25, 2023   |   15 min read   |   technical

Sentence transformers help us identify similar sentences based on their content, topic, and implicit meaning. In this post we compare BERT and all-mpnet-base-v2, a sentence transformer that is much better suited for producing sentence embeddings that can be compared using cosine similarity.

Neural Network Solution Bundles

Jun 17, 2020   |   7 min read   |   technical

Learning families of solutions to differential equations using deep neural networks for efficient parallel evaluation.

Neural Stack Implementation

Dec 22, 2019   |   7 min read   |   technical

Created one of the first public implementations of DeepMind's neural stack architecture.