Zobrazeno 1 - 10
of 9 751
pro vyhledávání: '"Dekel, A."'
In this paper, we take a new approach to autoregressive image generation that is based on two main ingredients. The first is wavelet image coding, which allows to tokenize the visual details of an image from coarse to fine details by ordering the inf
Externí odkaz:
http://arxiv.org/abs/2406.19997
Autor:
Mandelker, Nir, Ginzburg, Omry, Dekel, Avishai, Bournaud, Frederic, Krumholz, Mark R., Ceverino, Daniel, Primack, Joel
We address the formation of giant clumps in violently unstable gas-rich disc galaxies at cosmic noon. While these are commonly thought to originate from gravitational Toomre instability, cosmological simulations have indicated that clumps form even i
Externí odkaz:
http://arxiv.org/abs/2406.07633
Autor:
Dekel, Avihu, Fernandez, Raul
Tokenization algorithms that merge the units of a base vocabulary into larger, variable-rate units have become standard in natural language processing tasks. This idea, however, has been mostly overlooked when the vocabulary consists of phonemes or D
Externí odkaz:
http://arxiv.org/abs/2406.05547
Variational autoencoders (VAE) employ Bayesian inference to interpret sensory inputs, mirroring processes that occur in primate vision across both ventral (Higgins et al., 2021) and dorsal (Vafaii et al., 2023) pathways. Despite their success, tradit
Externí odkaz:
http://arxiv.org/abs/2405.14473
Autor:
Menon, Shyam H., Lancaster, Lachlan, Burkhart, Blakesley, Somerville, Rachel S., Dekel, Avishai, Krumholz, Mark R.
The observed rest-UV luminosity function at cosmic dawn ($z \sim 8-14$) measured by JWST revealed an excess of UV-luminous galaxies relative to many pre-launch theoretical predictions. A high star-formation efficiency (SFE) and a top-heavy initial ma
Externí odkaz:
http://arxiv.org/abs/2405.00813
Publikováno v:
A&A 687, A131 (2024)
Nearby dwarf galaxies display a variety of effective radii (sizes) at a given stellar mass, suggesting different evolution scenarios according to their final "stellar" size. The TNG hydrodynamical simulations present a bimodality in the z = 0 size -
Externí odkaz:
http://arxiv.org/abs/2404.15482
Event cameras capture changes of intensity over time as a stream of 'events' and generally cannot measure intensity itself; hence, they are only used for imaging dynamic scenes. However, fluctuations due to random photon arrival inevitably trigger no
Externí odkaz:
http://arxiv.org/abs/2404.01298
Autor:
Liang, Jinning, Jiang, Fangzhou, Mo, Houjun, Benson, Andrew, Dekel, Avishai, Tavron, Noa, Hopkins, Philip F., Ho, Luis C.
We present a series of studies on the connection between galaxy morphology and the structure of host dark-matter (DM) haloes using cosmological simulations. In this work, we introduce a new kinematic decomposition scheme that features physical identi
Externí odkaz:
http://arxiv.org/abs/2403.14749
We present DINO-Tracker -- a new framework for long-term dense tracking in video. The pillar of our approach is combining test-time training on a single video, with the powerful localized semantic features learned by a pre-trained DINO-ViT model. Spe
Externí odkaz:
http://arxiv.org/abs/2403.14548
Autor:
Wang, Tao, Sun, Hanwen, Zhou, Luwenjia, Xu, Ke, Cheng, Cheng, Li, Zhaozhou, Chen, Yangyao, Mo, H. J., Dekel, Avishai, Zheng, Xianzhong, Cai, Zheng, Yang, Tiacheng, Dai, Y. -S., Elbaz, David, Huang, J. -S.
One of the main challenges in galaxy formation that has emerged recently is the early assembly of massive galaxies. The observed number density and the maximum stellar mass ($M_{\star}$) of massive galaxies in the early Universe appear to be higher t
Externí odkaz:
http://arxiv.org/abs/2403.02399