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Vision transformers outperform CNNs in segmenting cosmic proto-halos

Researchers have developed deep learning models, specifically a U-Net transformer and a V-Net-based CNN, to segment proto-halos in the early universe's density field. The transformer-based network demonstrated superior performance, achieving sub-percent error in segmented mass per halo class and outperforming the traditional extsc{pinocchio} model, particularly for low-mass halos and boundary reconstruction. The study also examined the influence of input features like density and tidal shear, and used Grad-CAM to visualize the CNN's internal workings. AI

影响 Demonstrates advanced deep learning techniques for complex scientific simulations, potentially improving cosmological modeling.

排序理由 Academic paper detailing a new application of vision transformers and CNNs for astrophysical simulations. [lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.CV 阅读 →

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Vision transformers outperform CNNs in segmenting cosmic proto-halos

报道来源 [1]

  1. arXiv cs.CV TIER_1 English(EN) · Toka Alokda, Cristiano Porciani ·

    Segmenting proto-halos with vision transformers

    arXiv:2508.00049v2 Announce Type: cross Abstract: The formation of dark-matter halos from small cosmological perturbations generated in the early universe is a highly non-linear process typically modeled through N-body simulations. In this work, we explore the use of deep learnin…