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We present a new open-source cosmological code, called SWIFT, designed to solve the equations of hydrodynamics using a particle-based approach (Smooth Particle Hydrodynamics) on hybrid shared/distributed-memory architectures. SWIFT was…

分布式、并行与集群计算 · 计算机科学 2022-08-03 Matthieu Schaller , Pedro Gonnet , Aidan B. G. Chalk , Peter W. Draper

Estimating closely spaced frequency components of a signal is a fundamental problem in statistical signal processing. In this letter, we introduce 1-D real-valued and complex-valued shifted window (Swin) transformers, referred to as…

信号处理 · 电气工程与系统科学 2023-09-19 Josiah W. Smith , Murat Torlak

Cosmological simulations require the use of a multiple time-stepping scheme. Without such a scheme, cosmological simulations would be impossible due to their high level of dynamic range; over eleven orders of magnitude in density. Such a…

分布式、并行与集群计算 · 计算机科学 2018-07-05 Josh Borrow , Richard G. Bower , Peter W. Draper , Pedro Gonnet , Matthieu Schaller

Existing deep learning methods for remote sensing image fusion often suffer from poor generalization when applied to unseen datasets due to the limited availability of real training data and the domain gap between different satellite…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Yongchuan Cui , Peng Liu , Yi Zeng

The existing deep learning fusion methods mainly concentrate on the convolutional neural networks, and few attempts are made with transformer. Meanwhile, the convolutional operation is a content-independent interaction between the image and…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Zhishe Wang , Yanlin Chen , Wenyu Shao , Hui Li , Lei Zhang

Simultaneous wireless information and power transfer (SWIPT) has long been proposed as a key solution for charging and communicating with low-cost and low-power devices. However, the employment of radio frequency (RF) signals for…

信号处理 · 电气工程与系统科学 2021-11-23 Constantinos Psomas , Minglei You , Kai Liang , Gan Zheng , Ioannis Krikidis

Wireless Sensor Networks (WSNs) are memory and bandwidth limited networks whose main goals are to maximize the network lifetime and minimize the energy consumption and transmission cost. To achieve these goals, dif ferent techniques of…

密码学与安全 · 计算机科学 2015-10-02 Khan Muhammad , Zahoor Jan , Jamil Ahmad , Zahid Khan

Deep learning has been successfully applied to the single-image super-resolution (SISR) task with great performance in recent years. However, most convolutional neural network based SR models require heavy computation, which limit their…

计算机视觉与模式识别 · 计算机科学 2019-04-05 Chaofeng Wang , Zheng Li , Jun Shi

The success of Large Vision Models (LVMs) is accompanied by vast data volumes, which are prohibitively expensive in medical diagnosis.To address this, recent efforts exploit Parameter-Efficient Fine-Tuning (PEFT), which trains a small…

计算机视觉与模式识别 · 计算机科学 2024-05-29 Mingyuan Liu , Lu Xu , Shengnan Liu , Jicong Zhang

This work compares different linear and nonlinear RF energy harvesting models, including limited or unlimited sensitivity, for simultaneous wireless information and power transfer (SWIPT). The probability of successful SWIPT reception under…

信号处理 · 电气工程与系统科学 2018-02-28 Panos N. Alevizos , Georgios Vougioukas , Aggelos Bletsas

Transformer-based methods have exhibited remarkable potential in single image super-resolution (SISR) by effectively extracting long-range dependencies. However, most of the current research in this area has prioritized the design of…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Ao Li , Le Zhang , Yun Liu , Ce Zhu

Pansharpening is a crucial task in remote sensing, enabling the generation of high-resolution multispectral images by fusing low-resolution multispectral data with high-resolution panchromatic images. This paper provides a comprehensive…

图像与视频处理 · 电气工程与系统科学 2024-12-09 Mahek Kantharia , Neeraj Badal , Zankhana Shah

In this paper, we aim to redesign the vision Transformer (ViT) as a new backbone to realize semantic image transmission, termed wireless image transmission transformer (WITT). Previous works build upon convolutional neural networks (CNNs),…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Ke Yang , Sixian Wang , Jincheng Dai , Kailin Tan , Kai Niu , Ping Zhang

Hyperspectral pansharpening is receiving a growing interest since the last few years as testified by a large number of research papers and challenges. It consists in a pixel-level fusion between a lower-resolution hyperspectral datacube and…

图像与视频处理 · 电气工程与系统科学 2023-11-14 Giuseppe Guarino , Matteo Ciotola , Gemine Vivone , Giuseppe Scarpa

Intelligent reflecting surfaces (IRSs) have become a vital technology for improving the spectrum and energy efficiency of forthcoming wireless networks. Nevertheless, practical implementation is obstructed by the excessive overhead…

信号处理 · 电气工程与系统科学 2025-11-07 Xianhua Yu , Dong Li , Bowen Gu , Liuqing Yang , Sumei Sun , George K. Karagiannidis

Communication scene recognition has been widely applied in practice, but using deep learning to address this problem faces challenges such as insufficient data and imbalanced data distribution. To address this, we designed a weighted loss…

计量经济学 · 经济学 2026-02-10 Jiasong Han , Yufei Feng , Xiaofeng Zhong

The objective of pansharpening and hypersharpening is to accurately combine a high-resolution panchromatic (PAN) image with a low-resolution multispectral (MS) or hyperspectral (HS) image, respectively. Unfolding fusion methods integrate…

图像与视频处理 · 电气工程与系统科学 2024-09-05 Ivan Pereira-Sánchez , Eloi Sans , Julia Navarro , Joan Duran

Search-Based Software Testing (SBST) automates test input generation but is frequently hindered by challenging fitness landscapes characterized by numerous deceptive local optima that impede search progress, as well as extended plateaus…

软件工程 · 计算机科学 2026-04-13 Jeongjin Han , Seunghoon Sim , Jian Lee , Seongyoon Park

Remote sensing image super-resolution (RSISR) plays a vital role in enhancing spatial detials and improving the quality of satellite imagery. Recently, Transformer-based models have shown competitive performance in RSISR. To mitigate the…

计算机视觉与模式识别 · 计算机科学 2023-07-07 Yuting Lu , Lingtong Min , Binglu Wang , Le Zheng , Xiaoxu Wang , Yongqiang Zhao , Teng Long

Packing for Supervised Fine-Tuning (SFT) in autoregressive models involves concatenating data points of varying lengths until reaching the designed maximum length to facilitate GPU processing. However, randomly concatenating data points can…

机器学习 · 计算机科学 2025-02-27 Jiancheng Dong , Lei Jiang , Wei Jin , Lu Cheng