中文
相关论文

相关论文: CASA on the fringe: VLBI data processing in the CA…

200 篇论文

Adding VLBI capability to the SKA arrays will greatly broaden the science of the SKA, and is feasible within the current specifications. SKA-VLBI can be initially implemented by providing phased-array outputs for SKA1-MID and SKA1-SUR and…

We present a signal extraction utility written for the purposes of the Arecibo Legacy Fast ALFA survey (ALFALFA). This survey, when completed, will have covered 7000 square degrees of the high galactic latitude sky and should detect over…

天体物理学 · 物理学 2008-11-26 Amelie Saintonge

Very long baseline interferometry (VLBI) is a technique for imaging celestial radio emissions by simultaneously observing a source from telescopes distributed across Earth. The challenges in reconstructing images from fine angular…

天体物理仪器与方法 · 物理学 2016-11-08 Katherine L. Bouman , Michael D. Johnson , Daniel Zoran , Vincent L. Fish , Sheperd S. Doeleman , William T. Freeman

The Planck Low Frequency Instrument (LFI) is an array of 22 pseudo-correlation radiometers on-board the Planck satellite to measure temperature and polarization anisotropies in the Cosmic Microwave Background (CMB) in three frequency bands…

We present details of improvements to data processing and analysis which were recently used for a re-reduction of the Very Large Array (VLA) Low-frequency Sky Survey (VLSS) data. Algorithms described are implemented in the data-reduction…

天体物理仪器与方法 · 物理学 2012-05-22 W. M. Lane , W. D. Cotton , J. F. Helmboldt , N. E. Kassim

Detection and interpretation of human activities have emerged as a challenging healthcare problem in areas such as assisted living and remote monitoring. Besides traditional approaches that rely on wearable devices and camera systems, WiFi…

信号处理 · 电气工程与系统科学 2017-12-14 Bo Tan , Qingchao Chen , Kevin Chetty , Karl Woodbridge , Wenda Li , Robert Piechocki

Increased attention to RISC-V in Cloud, Data Center, Automotive and Networking applications, has been fueling the move of RISC-V to the high-performance computing scenario. However, lack of powerful performance monitoring tools will result…

性能 · 计算机科学 2021-12-23 Joao Mario Domingos , Pedro Tomas , Leonel Sousa

Canonical Correlation Analysis (CCA) has been widely applied to jointly embed multiple views of data in a maximally correlated latent space. However, the alignment between various data perspectives, which is required by traditional…

机器学习 · 计算机科学 2023-12-11 Biqian Cheng , Evangelos E. Papalexakis , Jia Chen

While coarse-grained reconfigurable arrays (CGRAs) have emerged as promising programmable accelerator architectures, pipelining applications running on CGRAs is required to ensure high maximum clock frequencies. Current CGRA compilers…

硬件体系结构 · 计算机科学 2022-11-24 Jackson Melchert , Yuchen Mei , Kalhan Koul , Qiaoyi Liu , Mark Horowitz , Priyanka Raina

We propose a novel framework that leverages Visual Question Answering (VQA) models to automate the evaluation of LLM-generated data visualizations. Traditional evaluation methods often rely on human judgment, which is costly and unscalable,…

计算机视觉与模式识别 · 计算机科学 2024-09-30 James Ford , Xingmeng Zhao , Dan Schumacher , Anthony Rios

We present VIPGI, an automatized human supervised reduction environment, developed within the VIRMOS project to handle VIMOS guaranteed time data. VIPGI is now offered to the international community to be used on site in Milano and…

天体物理学 · 物理学 2023-02-22 B. Garilli , P. Franzetti , L. Paioro , M. Scodeggio , A. Zanichelli

Shanghai Astronomical Observatory has upgraded its DiFX cluster to 420 CPU cores and a 432-TB storage system at the end of 2014. An international network connection for the raw data transfer has also been established. The routine operations…

天体物理仪器与方法 · 物理学 2018-04-16 Wu Jiang , Zhiqiang Shen , Fengchu Shu , Zhong Chen , Tianyu Jiang

Development of modern integrated circuit technologies makes it feasible to develop cheaper, faster and smaller special purpose signal processing function circuits. Digital Signal processing functions are generally implemented either on…

硬件体系结构 · 计算机科学 2013-06-04 Amitabha Sinha , Mitrava Sarkar , Soumojit Acharyya , Suranjan Chakraborty

Efficiently merging several models fine-tuned for different tasks, but stemming from the same pretrained base model, is of great practical interest. Despite extensive prior work, most evaluations of model merging in computer vision are…

The Type-II codebook in Release 17 (R17) exploits the angular-delay-domain partial reciprocity between uplink and downlink channels to select part of angular-delay-domain ports for measuring and feeding back the downlink channel state…

信息论 · 计算机科学 2023-10-11 Ke Ma , Yiliang Sang , Yang Ming , Jin Lian , Chang Tian , Zhaocheng Wang

In-correlator techniques offer the possibility of identifying and/or excising radio frequency interference (RFI) from interferometric observations at much higher time and/or frequency resolution than is generally possible with the final…

天体物理仪器与方法 · 物理学 2010-12-03 Adam T. Deller

Diffusion weighted imaging techniques permit us to infer microstructural detail in biological tissue in vivo and noninvasively. Modern sequences are based on advanced diffusion encoding schemes, allowing probing of more revealing measures…

Processing computer vision applications (CVA) on mobile devices is challenging due to limited battery life and computing power. While cloud-based remote processing of CVA offers abundant computational resources, it introduces latency issues…

网络与互联网体系结构 · 计算机科学 2025-01-09 Marcelo V. B. da Silva , Maria Barbosa , Anderson Queiroz , Kelvin L. Dias

Digital Signal Processing functions are widely used in real time high speed applications. Those functions are generally implemented either on ASICs with inflexibility, or on FPGAs with bottlenecks of relatively smaller utilization factor or…

其他计算机科学 · 计算机科学 2013-06-04 Amitabha Sinha , Soumojit Acharyya , Suranjan Chakraborty , Mitrava Sarkar

We describe the development of an FX style correlator for Very Long Baseline Interferometry (VLBI), implemented in software and intended to run in multi-processor computing environments, such as large clusters of commodity machines (Beowulf…

天体物理学 · 物理学 2009-11-13 A. T. Deller , S. J. Tingay , M. Bailes , C. West