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Topic: high-dimensional datasets

Seminar
1 seminar

In Applied Mathematics and Artificial Intelligence

Seminar · Computational Neuroscience

High-dimensional geometry of visual cortex

Carsen Stringer_ · Janelia Research Campus

Thu, Jun 25, 2020 · 17:00 UTC

Interpreting high-dimensional datasets requires new computational and analytical methods. We developed such methods to extract and analyze neural activity from 20,000 neurons recorded simultaneously in awake, behaving mice. The neural activity was not low-dimensional as commonly thought, but instead was high-dimensional and obeyed a power-law scaling across its eigenvalues. We developed a theory that proposes that neural responses to external stimuli maximize information capacity while maintaining a smooth neural code. We then observed power-law eigenvalue scaling in many real-world datasets,