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Title:
Hyperbolic geometry in biological networks
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Abstract:
Using the sense of smell as an example, I will describe both theoretical reasons and experimental evidence that natural stimuli and human perception can be mapped onto a low dimensional curved surface. This surface turns out to have a negative curvature, corresponding to a hyperbolic metric. Although this map was derived purely from the statistics of co-occurrence between mono-molecular odorants in the natural environment it revealed topography in the organization of human perception of smell. I will conclude with arguments for why hyperbolic metric can be useful for other sensory systems.
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