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5 papers · 1 filter
Do retinal ganglion cells project natural scenes to their principal subspace and whiten them?
Reza Abbasi-Asl, Cengiz Pehlevan, Bin Yu +1
Several theories of early sensory processing suggest that it whitens sensory stimuli. Here, we test three key predictions of the whitening theory using recordings from 152 ganglion…
Self-calibrating Neural Networks for Dimensionality Reduction
Yuansi Chen, Cengiz Pehlevan, Dmitri B. Chklovskii
Recently, a novel family of biologically plausible online algorithms for reducing the dimensionality of streaming data has been derived from the similarity matching principle. In t…
Data-driven, interpretable photometric redshifts trained on heterogeneous and unrepresentative data
Boris Leistedt, David W. Hogg
We present a new method for inferring photometric redshifts in deep galaxy and quasar surveys, based on a data driven model of latent spectral energy distributions (SEDs) and a phy…
The role of mergers and halo spin in shaping galaxy morphology
Vicente Rodriguez-Gomez, Laura V. Sales, Shy Genel +10
Mergers and the spin of the dark matter halo are factors traditionally believed to determine the morphology of galaxies within a CDM cosmology. We study this hypothesis by consi…
Beyond Jcrit: a critical curve for suppression of H2-cooling in protogalaxies
J. Wolcott-Green, Z. Haiman, G. L. Bryan
Suppression of H2-cooling in early protogalaxies has important implications for the formation of supermassive black holes seeds, the first generation of stars, and the epoch of rei…