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Automotive radar provides reliable environmental perception in all-weather conditions with affordable cost, but it hardly supplies semantic and geometry information due to the sparsity of radar detection points. With the development of…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Jianan Liu , Weiyi Xiong , Liping Bai , Yuxuan Xia , Tao Huang , Wanli Ouyang , Bing Zhu

Parallel training of neural networks at scale is challenging due to significant overheads arising from communication. Recently, deep learning researchers have developed a variety of pruning algorithms that are capable of pruning (i.e.…

机器学习 · 计算机科学 2023-05-16 Siddharth Singh , Abhinav Bhatele

Radar sensors offer power-efficient solutions for always-on smart devices, but processing the data streams on resource-constrained embedded platforms remains challenging. This paper presents novel techniques that leverage the temporal…

机器学习 · 计算机科学 2023-09-13 Max Sponner , Julius Ott , Lorenzo Servadei , Bernd Waschneck , Robert Wille , Akash Kumar

Iterative processing is widely adopted nowadays in modern wireless receivers for advanced channel codes like turbo and LDPC codes. Extension of this principle with an additional iterative feedback loop to the demapping function has proven…

信息论 · 计算机科学 2015-06-04 Salim Haddad , Amer Baghdadi , Michel Jezequel

Diffusion models (DMs) have recently demonstrated remarkable success in modeling large-scale data distributions. However, many downstream tasks require guiding the generated content based on specific differentiable metrics, typically…

机器学习 · 计算机科学 2025-05-13 Hongkun Dou , Zeyu Li , Xingyu Jiang , Hongjue Li , Lijun Yang , Wen Yao , Yue Deng

Radio astronomy is currently thriving with new large ground-based radio telescopes coming online in preparation for the upcoming Square Kilometre Array (SKA). Facilities like LOFAR, MeerKAT/SKA, ASKAP/SKA, and the future SKA-LOW bring…

天体物理仪器与方法 · 物理学 2023-08-02 Benjamin Naoto Chiche , Julien N. Girard , Joana Frontera-Pons , Arnaud Woiselle , Jean-Luc Starck

Pulsar acceleration searches are methods for recovering signals from radio telescopes, that may otherwise be lost due to the effect of orbital acceleration in binary systems. The vast amount of data that will be produced by next generation…

天体物理仪器与方法 · 物理学 2015-11-25 Sofia Dimoudi , Wesley Armour

Parsing is essential for a wide range of use cases, such as stream processing, bulk loading, and in-situ querying of raw data. Yet, the compute-intense step often constitutes a major bottleneck in the data ingestion pipeline, since parsing…

数据库 · 计算机科学 2020-04-16 Elias Stehle , Hans-Arno Jacobsen

In portable, 3-D, or ultra-fast ultrasound (US) imaging systems, there is an increasing demand to reconstruct high quality images from limited number of data. However, the existing solutions require either hardware changes or…

计算机视觉与模式识别 · 计算机科学 2017-10-31 Yeo Hun Yoon , Jong Chul Ye

In recent years, analyzing task-based fMRI (tfMRI) data has become an essential tool for understanding brain function and networks. However, due to the sheer size of tfMRI data, its intrinsic complex structure, and lack of ground truth of…

分布式、并行与集群计算 · 计算机科学 2018-03-06 Milad Makkie , Heng Huang , Yu Zhao , Athanasios V. Vasilakos , Tianming Liu

Diffusion models have recently achieved great success in the synthesis of high-quality images and videos. However, the existing denoising techniques in diffusion models are commonly based on step-by-step noise predictions, which suffers…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Hancheng Ye , Jiakang Yuan , Renqiu Xia , Xiangchao Yan , Tao Chen , Junchi Yan , Botian Shi , Bo Zhang

Dispersion in the interstellar medium is a well known phenomenon that follows a simple relationship, which has been used to predict the time delay of dispersed radio pulses since the late 1960s. We performed wide-band simultaneous…

Simulations of physical phenomena are essential to the expedient design of precision components in aerospace and other high-tech industries. These phenomena are often described by mathematical models involving partial differential equations…

计算物理 · 物理学 2017-01-05 Daniel Magee , Kyle E Niemeyer

The degradation of the acquired signal by Poisson noise is a common problem for various imaging applications, such as medical imaging, night vision and microscopy. Up to now, many state-of-the-art Poisson denoising techniques mainly…

计算机视觉与模式识别 · 计算机科学 2015-10-13 Wensen Feng , Yunjin Chen

In this work, we optimize speculative sampling for parallel hardware accelerators to improve sampling speed. We notice that substantial portions of the intermediate matrices necessary for speculative sampling can be computed concurrently.…

机器学习 · 计算机科学 2024-10-04 Dominik Wagner , Seanie Lee , Ilja Baumann , Philipp Seeberger , Korbinian Riedhammer , Tobias Bocklet

FRB search pipelines are being developed to operate under strict real-time constraints while maintaining sensitivity to short-duration transient signals. In incoherent dedispersion based pipelines such as Heimdall, apart from observation…

We investigate the generalisation performance of Distributed Gradient Descent with Implicit Regularisation and Random Features in the homogenous setting where a network of agents are given data sampled independently from the same unknown…

机器学习 · 统计学 2020-07-02 Dominic Richards , Patrick Rebeschini , Lorenzo Rosasco

We developed a pulsar search pipeline based on PRESTO (PulsaR Exploration and Search Toolkit). This pipeline simply runs dedispersion, FFT (Fast Fourier Transformation), and acceleration search in process-level parallel to shorten the…

天体物理仪器与方法 · 物理学 2020-07-08 Qiuyu Yu , Zhichen Pan , Lei Qian , Shen Wang , Youling Yue , Menglin Huang , Qiaoli Hao , Shanping You , Bo Peng , Yan Zhu , Lei Zhang , Zhijie Liu

This paper is concerned with the problem of how to speed up computation for Gaussian process models trained on autocorrelated data. The Gaussian process model is a powerful tool commonly used in nonlinear regression applications. Standard…

机器学习 · 计算机科学 2025-12-03 Ahmadreza Chokhachian , Matthias Katzfuss , Yu Ding

Text-to-image diffusion inference typically follows synchronized schedules, where the numerical integrator advances the latent state to the same timestep at which the denoiser is conditioned. We propose an asynchronous inference mechanism…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Longhuan Xu , Feng Yin , Cunjian Chen