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We consider the scenario of self-interacting dark matter(SIDM) with a light mediator in a model-independent way, which can alleviate two long-standing issues of the small scale cosmology namely cusp vs. core and too-big-to-fail. A Yukawa…

高能物理 - 唯象学 · 物理学 2023-01-02 Utkarsh Patel , Sudhanwa Patra

Recent multimodal models such as Contrastive Language-Image Pre-training (CLIP) have shown remarkable ability to align visual and linguistic representations. However, domains where small visual differences carry large semantic significance,…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Hiroshi Sasaki

Widefield surveys of the sky probe many clustered scalar fields -- such as galaxy counts, lensing potential, gas pressure, etc. -- that are sensitive to different cosmological and astrophysical processes. Our ability to constrain such…

The Casimir force is calculated in the configuration of a spherical lens and a disc of finite radius covered by $Cu$ and $Au$ thin layers which was used in a recent experiment. The correction to the Casimir force due to finiteness of the…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Bordag , B. Geyer , G. L. Klimchitskaya , V. M. Mostepanenko

Contrastive Language-Image Pretraining (CLIP) achieves strong generalization in vision-language tasks by aligning images and texts in a shared embedding space. However, recent findings show that CLIP-like models still underutilize…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Weiheng Zhao , Zilong Huang , Jiashi Feng , Xinggang Wang

We derive lens distortion and magnification profiles of four well known clusters observed with Subaru. Each cluster is very well fitted by the general form predicted for Cold Dark Matter (CDM) dominated halos, with good consistency found…

天体物理学 · 物理学 2011-02-11 Tom Broadhurst , Keiichi Umetsu , Elinor Medezinski , Masamune Oguri , Yoel Rephaeli

We introduce a novel unbiased, cross-correlation estimator for the one-point statistics of cosmological random fields. One-point statistics are a useful tool for analysis of highly non-Gaussian density fields, while cross-correlations…

宇宙学与河外天体物理 · 物理学 2023-08-16 Patrick C. Breysse , Dongwoo T. Chung , Håvard T. Ihle

Extensive air showers induced from high-energy cosmic rays provide a window into understanding the most energetic phenomena in the universe. We present a new method for observing these showers using the silicon imaging detector Subaru Hyper…

Constraints are placed on the spin-independent interaction cross section of dark matter with regular matter by refining two methods. First, dark matter--cosmic ray interactions are considered, wherein cosmic ray protons collide with dark…

宇宙学与河外天体物理 · 物理学 2015-06-12 Gregory D. Mack , Adithya Manohar

It has been a longstanding goal within image captioning to move beyond a dependence on object detection. We investigate using superpixels coupled with Vision Language Models (VLMs) to bridge the gap between detector-based captioning…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Henry Senior , Luca Rossi , Gregory Slabaugh , Shanxin Yuan

We present calculations of the upper critical field in superconducting films as a function of increasing disorder (as measured by the normal state resistance per square). In contradiction to previous work, we find that there is no anomalous…

超导电性 · 物理学 2009-10-31 Robert A Smith , Beccy S Handy , Vinay Ambegaokar

Accurate image reconstruction is crucial for photoacoustic (PA) computed tomography (PACT). Recently, deep learning has been used to reconstruct the PA image with a supervised scheme, which requires high-quality images as ground truth…

图像与视频处理 · 电气工程与系统科学 2023-09-22 Hengrong Lan , Lijie Huang , Zhiqiang Li , Jing Lv , Jianwen Luo

Hyperspectral image change detection (HSI-CD) has emerged as a crucial research area in remote sensing due to its ability to detect subtle changes on the earth's surface. Recently, diffusional denoising probabilistic models (DDPM) have…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Xiangrong Zhang , Shunli Tian , Guanchun Wang , Huiyu Zhou , Licheng Jiao

We measure the harmonic-space auto-power spectrum of the galaxy overdensity in the LOFAR Two-metre Sky Survey (LoTSS) First Data Release and its cross correlation with the map of the lensing convergence of the cosmic microwave background…

宇宙学与河外天体物理 · 物理学 2021-01-20 David Alonso , Emilio Bellini , Catherine Hale , Matt J. Jarvis , Dominik J. Schwarz

Low-light conditions have an adverse impact on machine cognition, limiting the performance of computer vision systems in real life. Since low-light data is limited and difficult to annotate, we focus on image processing to enhance low-light…

计算机视觉与模式识别 · 计算机科学 2024-12-11 Igor Morawski , Kai He , Shusil Dangi , Winston H. Hsu

Secondary anisotropies of the CMB have the potential to reveal intricate details about the history of our universe between the present and recombination epochs. However, because the CMB we observe is the projected sum of a multitude of…

天体物理学 · 物理学 2009-11-10 Olivier Doré , Joseph F. Hennawi , David N. Spergel

This paper proposes a novel method of estimating the absolute scale of monocular SfM for a multi-modal stereo camera. In the fields of computer vision and robotics, scale estimation for monocular SfM has been widely investigated in order to…

计算机视觉与模式识别 · 计算机科学 2018-10-30 Shinya Sumikura , Ken Sakurada , Nobuo Kawaguchi , Ryosuke Nakamura

We study the coherent photoproduction of pseudoscalar mesons---particularly of neutral pions---placing special emphasis on the various sources that put into question earlier nonrelativistic-impulse-approximation calculations. These include:…

核理论 · 物理学 2009-10-31 L. J. Abu-Raddad , J. Piekarewicz , A. J. Sarty , R. A. Rego

By supporting multi-modal retrieval training and evaluation, image captioning datasets have spurred remarkable progress on representation learning. Unfortunately, datasets have limited cross-modal associations: images are not paired with…

计算与语言 · 计算机科学 2021-03-25 Zarana Parekh , Jason Baldridge , Daniel Cer , Austin Waters , Yinfei Yang

We perform weak lensing tomographic peak studies using the first-year shear data from Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) survey. The effective area used in our analyses after field selection, mask and boundary exclusions…

宇宙学与河外天体物理 · 物理学 2022-10-26 Xiangkun Liu , Shuo Yuan , Chuzhong Pan , Tianyu Zhang , Qiao Wang , Zuhui Fan