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We introduce ultrafast low-energy electron diffraction (ULEED) in backscattering for the study of structural dynamics at surfaces. Using a tip-based source of ultrashort electron pulses, we investigate the optically-driven transition…

介观与纳米尺度物理 · 物理学 2020-08-26 S. Vogelgesang , G. Storeck , S. Schramm , K. Rossnagel , S. Schäfer , C. Ropers

Drug discovery is a highly complicated process, and it is unfeasible to fully commit it to the recently developed molecular generation methods. Deep learning-based lead optimization takes expert knowledge as a starting point, learning from…

Power line detection is a critical inspection task for electricity companies and is also useful in avoiding drone obstacles. Accurately separating power lines from the surrounding area in the aerial image is still challenging due to the…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Yang Cheng , Zhen Chen , Daming Liu

Artificial intelligence can rapidly propose candidate phases and structures from X-ray diffraction (XRD), but these hypotheses often fail in downstream refinement because peak intensities cannot be stably assigned under severe overlap and…

材料科学 · 物理学 2026-02-25 Bin Cao , Qian Zhang , Zhenjie Feng , Taolue Zhang , Jiaqiang Huang , Lu-Tao Weng , Tong-Yi Zhang

Learning-based methods have made promising advances in low-light RAW image enhancement, while their capability to extremely dark scenes where the environmental illuminance drops as low as 0.0001 lux remains to be explored due to the lack of…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Hai Jiang , Binhao Guan , Zhen Liu , Xiaohong Liu , Jian Yu , Zheng Liu , Songchen Han , Shuaicheng Liu

Immersed boundary methods are high-order accurate computational tools used to model geometrically complex problems in computational mechanics. While traditional finite element methods require the construction of high-quality boundary-fitted…

数值分析 · 数学 2024-02-27 Jennifer E. Fromm , Nils Wunsch , Kurt Maute , John A. Evans , Jiun-Shyan Chen

Diffusion-based Image Editing has achieved significant success in recent years. However, it remains challenging to achieve high-quality image editing while maintaining the background similarity without sacrificing speed or memory…

图形学 · 计算机科学 2025-09-03 Siyi Liu , Weiming Chen , Yushun Tang , Zhihai He

We present Seed3D 2.0, an advanced 3D content generation system built on Seed3D 1.0, with substantial improvements across generation fidelity, simulation-ready capabilities, and application coverage. For geometry, a coarse-to-fine two-stage…

The engineering design process often entails optimizing the underlying geometry while simultaneously selecting a suitable material. For a certain class of simple problems, the two are separable where, for example, one can first select an…

计算工程、金融与科学 · 计算机科学 2021-12-24 Aaditya Chandrasekhar , Saketh Sridhara , Krishnan Suresh

Infrared-visible image fusion aims to create an information-rich fused image by integrating the complementary thermal saliency from infrared sensing and fine textures from visible imaging. Such accurate fusion is essential for real-world…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Zhenyu Sun , Luobin Zhang , Axi Niu , Haishen Wang , Qingsen Yan

Distributed inference serves as a promising approach to enabling the inference of large language models (LLMs) at the network edge. It distributes the inference process to multiple devices to ensure that the LLMs can fit into the device…

分布式、并行与集群计算 · 计算机科学 2026-01-13 Xing Liu , Lizhuo Luo , Ming Tang , Chao Huang , Xu Chen

The global generation of renewable energy has rapidly increased, primarily due to the installation of large-scale renewable energy power plants. However, monitoring renewable energy assets in these large plants remains challenging due to…

计算机视觉与模式识别 · 计算机科学 2024-01-10 Divyanshi Dwivedi , K. Victor Sam Moses Babu , Pradeep Kumar Yemula , Pratyush Chakraborty , Mayukha Pal

The microstructure of Ti-6Al-4V has a decisive impact on its mechanical performance; however, controlling phase composition during Laser Powder Bed Fusion (LPBF) remains difficult because of the inherent localized and cyclic thermal…

This paper introduces SHIELD, a Spherical-Projection Hybrid-Frontier Integration for Efficient LiDAR-based Drone exploration method. Although laser LiDAR offers the advantage of a wide field of view, its application in UAV exploration still…

机器人学 · 计算机科学 2026-01-01 Liangtao Feng , Zhenchang Liu , Feng Zhang , Xuefeng Ren

Unsupervised intrinsic image decomposition (IID) is the process of separating a natural image into albedo and shade without these ground truths. A recent model employing light detection and ranging (LiDAR) intensity demonstrated impressive…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Shogo Sato , Takuhiro Kaneko , Kazuhiko Murasaki , Taiga Yoshida , Ryuichi Tanida , Akisato Kimura

Unlocking the full physical information encoded in low-resolution spectra poses a significant challenge for astronomical survey analysis. Such a task demands modeling spectra and optimizing astrophysical parameters in high-dimensional…

星系天体物理 · 物理学 2026-04-28 Tianmin Wu , Maosheng Xiang , Jianrong Shi , Meng Zhang , Lanya Mou , Hong-Liang Yan , A-Li Luo

We present a deep-learning Variational Encoder-Decoder (VED) framework for learning data-driven low-dimensional representations of the relationship between high-dimensional parameters of a physical system and the system's high-dimensional…

机器学习 · 计算机科学 2024-12-09 Subashree Venkatasubramanian , David A. Barajas-Solano

Ease of access to data, tools and models expedites scientific research. In structural biology there are now numerous open repositories of experimental and simulated datasets. Being able to easily access and utilise these is crucial for…

This study uses plasma-profile data from the EUROfusion pedestal database, focusing on the electron-temperature and electron-density profiles in the edge region of H-mode ELMy JET ITER-Like-Wall (ILW) pulses. We make systematic predictions…

Handling missing data remains a fundamental challenge in real-world tabular datasets, especially when data are heterogeneous with both numerical and categorical features. Existing imputation methods often fail to capture complex structural…

机器学习 · 计算机科学 2025-12-01 Youran Zhou , Mohamed Reda Bouadjenek , Sunil Aryal%