Decomposing Superposition: Sparse Autoencoders for Neural Network Interpretability
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Decomposing Superposition: Sparse Autoencoders for Neural Network Interpretability
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このコンテンツについて
This episode explores how sparse autoencoders can decode the phenomenon of superposition in neural networks, demonstrating that the seemingly impenetrable compression of features into neurons can be partially reversed to extract interpretable, causal features. The discussion centers on an Anthropic research paper that successfully maps specific behaviors to discrete neural network locations in a 512-neuron model, proving that interpretability is achievable though computationally expensive, with important implications for AI safety and control mechanisms.
Credits
Cover Art by Brianna Williams
TMOM Intro Music by Danny Meza
A special thank you to these talented artists for their contributions to the show.
Links and References---------------------------------------------------
Academic PapersTowards Monosemanticity: Decomposing Language Models With Dictionary Learning - https://transformer-circuits.pub/2023/monosemantic-features - Anthropic (May 2024)
Toy Models of Superposition “https://transformer-circuits.pub/2022/toy_model/index.html” - Anthropic (December 2022)
Alignment Faking in Large Language Models - https://www.anthropic.com/research/alignment-faking - Anthropic (December 2024)
Agentic Misalignment: How LLMs Could Be Insider Threats - https://www.anthropic.com/research/agentic-misalignment - Anthropic (January 2025)
News
Deep Seek OCR Model Release - https://deepseek.ai/blog/deepseek-ocr-context-compression
Meta AI Division Layoffs - https://www.nytimes.com/2025/10/22/technology/meta-plans-to-cut-600-jobs-at-ai-superintelligence-labs.html
Apple M5 Chip Announcement - https://www.apple.com/newsroom/2025/10/apple-unleashes-m5-the-next-big-leap-in-ai-performance-for-apple-silicon/
Anthropic Claude Haiku 4.5 - https://www.anthropic.com/news/claude-haiku-4-5
Other
Jon Stewart interview with Geoffrey Hinton - https://www.youtube.com/watch?v=jrK3PsD3APk
Blake Lemoine and AI Psychosis - https://www.youtube.com/watch?v=kgCUn4fQTsc
Abandoned Episode Titles
"Star Trek: The Wrath of Polysemanticity"
"The Hitchhiker's Guide to the Neuron: Don't Panic, It's Just Superposition"
"Honey, I Shrunk the Features (Then Expanded Them 256x)"
"The Legend of Zelda: 131,000 Links Between Neurons"