@ai-ucsb.bsky.social

🎉Congratulations to Guillermo Bernárdez Gil! Thrilled to share that our postdoc, Guille, has been awarded the 2026 Extraordinary Doctoral Award by the Universitat Politècnica de Catalunya (UPC). Congrats, Guille, so proud to have you on our team👏 🔗https://tinyurl.com/43hbr9t3

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The concept of superposition has motivated over three decades of work across different communities. It states that neural networks encode features by overlaying multiple concepts ('elephant', 'ball', 'pink') linearly within the same set of neurons. We ask: how can we recover these concepts?

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Can geometry help explain how neuronal signals create consciousness?🤔🌐 Loved diving into this question w/ the brilliant Claire Webb from the @berggruen.org thanks to the @longnow.org foundation ! Watch our conversation here ⬇️ @geometric-intel.bsky.social @ucsbece.bsky.social @ai-ucsb.bsky.social

The Long Now Foundation@longnow.org · 3mo ago

How do the binary electronic signals of neurons give rise to consciousness? Mathematician and machine learning researcher @ninamiolane.bsky.social joined science historian Claire Isabel Webb of @berggruen.org to explore this question from an unexpected direction: geometry. Watch the full episode ->

🧠 Can geometry give us a theory of neural computation? Claire Isabel Webb and I discussed how #geometry, the hidden shapes & structure inside high-dimensional neural data, can be a powerful tool to understand how the brain computes. @longnow.org @geometric-intel.bsky.social @ucsbece.bsky.social

The Long Now Foundation@longnow.org · 2mo ago

Could there be a universal geometry of intelligence? @ninamiolane.bsky.social proposes answers in her Long Now Talk with @berggruen.org's Claire Isabel Webb.

• Lastly, animation of an extra long sea ice concentration rollout over the spring of 2024 for the Baltic Sea, with reanalysis atmospheric forcing. The regional model remains surprisingly stable while only trained with 2 autoregressive steps.

• Sea ice is predicted alongside other physical state variables. Smooth invertible activation functions together with a binary density channel keep ice variables within realistic bounds.

• K-means cluster meshes. Latitude weighted spherical K-means produces a mesh that conforms better to ocean grids by construction compared to previously used quadrilateral or icosahedral meshes.

• Latent-variable graph neural network. A per-step Gaussian latent on the coarsest mesh level injects stochasticity into a hierarchical encode-process-decode backbone. The model only requires one forward pass per ensemble member.

• Njord is trained globally at 0.25° and on the Baltic Sea at 2km resolution. In the regional setting Njord conditions on boundary data from an independent global ocean model, where previous emulators either lack boundary forcing or depend on the very system they aim to replace.

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