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The MIT/IEEE/Amazon GraphChallenge.org encourages community approaches to developing new solutions for analyzing graphs and sparse data. Sparse AI analytics present unique scalability difficulties. The Sparse Deep Neural Network (DNN)…

Recently spiking neural networks (SNNs), the third-generation of neural networks has shown remarkable capabilities of energy-efficient computing, which is a promising alternative for deep neural networks (DNNs) with high energy consumption.…

计算机视觉与模式识别 · 计算机科学 2021-06-22 Yihao Luo , Min Xu , Caihong Yuan , Xiang Cao , Liangqi Zhang , Yan Xu , Tianjiang Wang , Qi Feng

Over-parameterization of deep neural networks (DNNs) has shown high prediction accuracy for many applications. Although effective, the large number of parameters hinders its popularity on resource-limited devices and has an outsize…

机器学习 · 计算机科学 2023-04-25 Shaoyi Huang , Bowen Lei , Dongkuan Xu , Hongwu Peng , Yue Sun , Mimi Xie , Caiwen Ding

Synthetic aperture radar (SAR) image change detection is a critical yet challenging task in the field of remote sensing image analysis. The task is non-trivial due to the following challenges: Firstly, intrinsic speckle noise of SAR images…

图像与视频处理 · 电气工程与系统科学 2021-10-19 Yunhao Gao , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

Estimating the direction of arrival (DOA) of sources is an important problem in aerospace and vehicular communication, localization and radar. In this paper, we consider a challenging multi-source DOA estimation task, where the receiving…

信号处理 · 电气工程与系统科学 2022-02-17 Tom Tirer , Oded Bialer

Deep learning-based direction-of-arrival (DoA) estimation has gained increasing popularity. A popular family of DoA estimation algorithms is beamforming methods, which operate by constructing a spatial filter that is applied to array…

计算工程、金融与科学 · 计算机科学 2025-12-25 Xuyao Deng , Yong Dou , Kele Xu

Deep Neural Networks (DNNs) have improved the accuracy of classification problems in lots of applications. One of the challenges in training a DNN is its need to be fed by an enriched dataset to increase its accuracy and avoid it suffering…

机器学习 · 计算机科学 2020-08-25 Iman Saberi , Fathiyeh Faghih

Object Detection has been a significant topic in computer vision. As the continuous development of Deep Learning, many advanced academic and industrial outcomes are established on localising and classifying the target objects, such as…

计算机视觉与模式识别 · 计算机科学 2019-07-31 Yingwei Zhou

This paper proposes design techniques for partially-calibrated sparse linear subarrays and algorithms to perform direction-of-arrival (DOA) estimation. First, we introduce array architectures that incorporate two distinct array categories,…

信号处理 · 电气工程与系统科学 2024-09-04 W. Leite , R. C. de Lamare , Y. Zakharov , W. Liu , M. Haardt

The problem of direction of arrival (DOA) estimation has been studied for decades as an essential technology in enabling radar, wireless communications, and array signal processing related applications. In this paper, the DOA estimation…

信号处理 · 电气工程与系统科学 2022-03-22 Peng Chen , Zhimin Chen , Zhenxin Cao , Xianbin Wang

Robotic surgery has become a powerful tool for performing minimally invasive procedures, providing advantages in dexterity, precision, and 3D vision, over traditional surgery. One popular robotic system is the da Vinci surgical platform,…

计算机视觉与模式识别 · 计算机科学 2017-05-24 Menglong Ye , Edward Johns , Ankur Handa , Lin Zhang , Philip Pratt , Guang-Zhong Yang

This paper presents a novel approach for the output range estimation problem in Deep Neural Networks (DNNs) by integrating a Simulated Annealing (SA) algorithm tailored to operate within constrained domains and ensure convergence towards…

机器学习 · 计算机科学 2026-01-28 Helder Rojas , Nilton Rojas , Espinoza J. B. , Luis Huamanchumo

An ambiguity-free direction-of-arrival (DOA) estimation scheme is proposed for sparse uniform linear arrays under low signal-to-noise ratios (SNRs) and non-stationary broadband signals. First, for achieving better DOA estimation performance…

信号处理 · 电气工程与系统科学 2025-03-06 Wei Wang , Shefeng Yan , Linlin Mao , Zeping Sui , Jirui Yang

Miniaturized autonomous unmanned aerial vehicles (UAVs) are gaining popularity due to their small size, enabling new tasks such as indoor navigation or people monitoring. Nonetheless, their size and simple electronics pose severe challenges…

Spatial frequency estimation from a mixture of noisy sinusoids finds applications in various fields. While subspace-based methods offer cost-effective super-resolution parameter estimation, they demand precise array calibration, posing…

信号处理 · 电气工程与系统科学 2024-10-23 Tianyi Liu , Sai Pavan Deram , Khaled Ardah , Martin Haardt , Marc E. Pfetsch , Marius Pesavento

We focus on coherent direction of arrival estimation of wideband sources based on spatial sparsity. This area of research is encountered in many applications such as passive radar, sonar, mining, and communication problems, in which an…

信号处理 · 电气工程与系统科学 2024-01-18 Milad Javadzadeh Jirhandeh , Mohammad Hossein Kahaei

We focus on developing an effective Direction Of Arrival (DOA) estimation method for wideband sources based on the gridless sparse concept. Previous coherent methods have been designed by dividing wideband frequencies into a few subbands…

信号处理 · 电气工程与系统科学 2021-03-05 Milad Javadzadeh Jirhandeh , Mohammad Hossein Kahae

Recently, several array radar structures combined with sub-Nyquist techniques and corresponding algorithms have been extensively studied. Carrier frequency and direction-of-arrival (DOA) estimations of multiple narrow-band signals received…

信号处理 · 电气工程与系统科学 2018-10-29 Zhan Zhang , Ping Wei , Lijuan Deng , Huaguo Zhang

Recently, deep convolutional neural networks (DCNN) that leverage the adversarial training framework for image restoration and enhancement have significantly improved the processed images' sharpness. Surprisingly, although these DCNNs…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Seyed Mehdi Ayyoubzadeh , Ali Royat

Horizontal line arrays are often employed in underwater environments to estimate the direction of arrival (DOA) of a weak signal. Conventional beamforming (CB) is robust but has wide beamwidths and high-level sidelobes. High-resolution…

信号处理 · 电气工程与系统科学 2020-12-09 Qi Zhang , Jiang Zhu , Yuantao Gu , Zhiwei Xu