This work was done during one weekend by research workshop participants and does not represent the work of Apart Research.
ApartSprints
Computational Mechanics Hackathon!
661eead4df76057e22a47ca8
Computational Mechanics Hackathon!
June 3, 2024
Accepted at the 
661eead4df76057e22a47ca8
 research sprint on 

Handcrafting a Network to Predict Next Token Probabilities for the Random-Random-XOR Process

For this hackathon, we handcrafted a network to perfectly predict next token probabilities for the Random-Random-XOR process. The network takes existing tokens from the process's output, computes several features on these tokens, and then uses these features to calculate next token probabilities. These probabilities match those from a process simulator (also coded for this hackathon). The handcrafted network is our core contribution and we describe it in Section 3 of this writeup. Prior work has demonstrated that a network trained on the Random-Random-XOR process approximates the 36 possible belief states. Our network does not directly calculate these belief states, demonstrating that networks trained on Hidden Markov Models may not need to comprehend all belief states. Our hope is that this work will aid in the interpretability of neural networks trained on Hidden Markov Models by demonstrating potential shortcuts that neural networks can take.

By 
Rick Goldstein
🏆 
4th place
3rd place
2nd place
1st place
 by peer review
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This project is private