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@playinprogress@assemblag.es
2025-06-23 08:26:07

remember cool cool winter? yeah me either
#photography #mosstodon #lichenSubscribe

a horizontal format closeup of a patch of ground in winter densely populated with leafy plants, moss and grass, all coated with a fine layer of frost
a twig with yellow and grey lichen growing on in bisecting the image, with the upper and lower half both consisting of a background of out-of-focus leafy plants growing close to the ground, and everything in this image covered with a thin layer of frost
a tangle of very green leafy plants growing on a moss-covered log and covered wit a layer of frost
@jby@ecoevo.social
2025-07-15 17:17:11

Two national parks, two American robins (Turdus migratorius): in Yosemite Valley, Yosemite National Park; and at the summit of Cadillac Mountain, Acadia National Park
#naturalist #wildlife #photography

A thrush with a brick-red breast, standing on leaf litter amidst oak seedlings
A very similar thrush, in harsh sunlight on a lichen-covered stone surface
@arXiv_csLG_bot@mastoxiv.page
2025-07-09 10:24:12

Diffusion Dataset Condensation: Training Your Diffusion Model Faster with Less Data
Rui Huang, Shitong Shao, Zikai Zhou, Pukun Zhao, Hangyu Guo, Tian Ye, Lichen Bai, Shuo Yang, Zeke Xie
arxiv.org/abs/2507.05914

Diffusion Dataset Condensation: Training Your Diffusion Model Faster with Less Data
Diffusion models have achieved remarkable success in various generative tasks, but training them remains highly resource-intensive, often requiring millions of images and many days of GPU computation. From a data-centric perspective addressing this limitation, we study diffusion dataset condensation as a new and challenging problem setting. The goal is to construct a "synthetic" sub-dataset with significantly fewer samples than the original dataset, enabling high-quality diffusion model trainin…

@arXiv_csDS_bot@mastoxiv.page
2025-06-09 07:33:42

On Differential Privacy for Adaptively Solving Search Problems via Sketching
Shiyuan Feng, Ying Feng, George Z. Li, Zhao Song, David P. Woodruff, Lichen Zhang
arxiv.org/abs/2506.05503

On Differential Privacy for Adaptively Solving Search Problems via Sketching
Recently differential privacy has been used for a number of streaming, data structure, and dynamic graph problems as a means of hiding the internal randomness of the data structure, so that multiple possibly adaptive queries can be made without sacrificing the correctness of the responses. Although these works use differential privacy to show that for some problems it is possible to tolerate $T$ queries using $\widetilde{O}(\sqrt{T})$ copies of a data structure, such results only apply to numer…

@jby@ecoevo.social
2025-06-27 18:58:25

White-breasted nuthatch, Sitta carolinensis, in absolutely classic nuthatch form up at Glacier Point in Yosemite National Park
#naturalist #bird #wildlife

A small passerine with a white face and breast, a black cap and slate-gray wings, perched facing downwards on a lichen-covered tree trunk, its head up so its bill is nearly parallel with the ground below
@ubuntourist@mastodon.social
2025-06-30 13:12:51

Soon to be a Marvel ™️ super-villain 😉
#radiation #ultraviolet #UV_C #lichen

UV-C Light Kills Nearly Everything - Except This Unusual Organism - Slashdot
"Earth's ozone layer blocks the Sun's shortest wave radiation, called UV-C, which is so damaging to cells in high doses that it's a go-to sterilizer in hospitals," writes Slashdot reader sciencehabit. "UV-C is such a killer, in fact, that scientists have questioned whether life can survive on world...