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A cost effective approach to remote monitoring of protected areas such as marine reserves and restricted naval waters is to use passive sonar to detect, classify, localize, and track marine vessel activity (including small boats and…

声音 · 计算机科学 2017-10-30 Eric L. Ferguson , Rishi Ramakrishnan , Stefan B. Williams , Craig T. Jin

In this paper, we study the underwater acoustic localization in the presence of environmental mismatch. Especially, we exploit a pre-trained neural network for the acoustic wave propagation in a gradient-based optimization framework to…

声音 · 计算机科学 2025-04-01 Dariush Kari , Yongjie Zhuang , Andrew C. Singer

This paper proposes simple moment based spectrum sensing algorithm for cognitive radio networks in a flat fading channel. It is assumed that the transmitted signal samples are binary (quadrature) phase-shift keying BPSK (QPSK), Mary…

应用统计 · 统计学 2013-11-26 Tadilo Endeshaw Bogale , Luc Vandendorpe

This paper considers the problem of localizing a set of nodes in a wireless sensor network when both their positions and the parameters of the communication model are unknown. We assume that a single agent moves through the environment,…

系统与控制 · 电气工程与系统科学 2024-02-20 Yancheng Zhu , Sean B. Andersson

State-of-the-art static analysis tools for verifying finite-precision code compute worst-case absolute error bounds on numerical errors. These are, however, often not a good estimate of accuracy as they do not take into account the…

编程语言 · 计算机科学 2017-08-07 Anastasiia Izycheva , Eva Darulova

There is a significant need for precise and reliable forecasting of the far-field noise emanating from shipping vessels. Conventional full-order models based on the Navier-Stokes equations are unsuitable, and sophisticated model reduction…

机器学习 · 计算机科学 2024-04-15 Indu Kant Deo , Akash Venkateshwaran , Rajeev K. Jaiman

In this paper, we consider deep neural networks for solving inverse problems that are robust to forward model mis-specifications. Specifically, we treat sensing problems with model mismatch where one wishes to recover a sparse…

机器学习 · 计算机科学 2021-10-22 Wei Pu , Chao Zhou , Yonina C. Eldar , Miguel R. D. Rodrigues

Convolutional Neural Networks (CNNs) have demonstrated superiority in learning patterns, but are sensitive to label noises and may overfit noisy labels during training. The early stopping strategy averts updating CNNs during the early…

计算机视觉与模式识别 · 计算机科学 2022-12-08 Huaxi Huang , Hui Kang , Sheng Liu , Olivier Salvado , Thierry Rakotoarivelo , Dadong Wang , Tongliang Liu

Fixed-point optimization of deep neural networks plays an important role in hardware based design and low-power implementations. Many deep neural networks show fairly good performance even with 2- or 3-bit precision when quantized weights…

机器学习 · 计算机科学 2017-02-28 Sungho Shin , Yoonho Boo , Wonyong Sung

Audio source separation aims to separate a mixture into target sources. Previous audio source separation systems usually conduct one-step inference, which does not fully explore the separation ability of models. In this work, we reveal that…

声音 · 计算机科学 2025-05-27 Yongyi Zang , Jingyi Li , Qiuqiang Kong

Models for audio source separation usually operate on the magnitude spectrum, which ignores phase information and makes separation performance dependant on hyper-parameters for the spectral front-end. Therefore, we investigate end-to-end…

声音 · 计算机科学 2018-06-11 Daniel Stoller , Sebastian Ewert , Simon Dixon

Large-scale federated learning (FL) over wireless multiple access channels (MACs) has emerged as a crucial learning paradigm with a wide range of applications. However, its widespread adoption is hindered by several major challenges,…

机器学习 · 计算机科学 2024-11-01 Vineet Sunil Gattani , Junshan Zhang , Gautam Dasarathy

Scene text recognition has been a hot research topic in computer vision due to its various applications. The state of the art is the attention-based encoder-decoder framework that learns the mapping between input images and output sequences…

计算机视觉与模式识别 · 计算机科学 2017-10-24 Zhanzhan Cheng , Fan Bai , Yunlu Xu , Gang Zheng , Shiliang Pu , Shuigeng Zhou

Training neural network classifiers on datasets contaminated with noisy labels significantly increases the risk of overfitting. Thus, effectively implementing Early Stopping in noisy label environments is crucial. Under ideal circumstances,…

机器学习 · 计算机科学 2024-09-12 William Toner , Amos Storkey

Neural networks have recently become popular for a wide variety of uses, but have seen limited application in safety-critical domains such as robotics near and around humans. This is because it remains an open challenge to train a neural…

机器学习 · 计算机科学 2021-07-19 Long Kiu Chung , Adam Dai , Derek Knowles , Shreyas Kousik , Grace X. Gao

Vehicular communication systems face significant challenges due to high mobility and rapidly changing environments, which affect the channel over which the signals travel. To address these challenges, neural network (NN)-based channel…

机器学习 · 计算机科学 2025-02-12 Simbarashe Aldrin Ngorima , Albert Helberg , Marelie H. Davel

Existing methods to recover model accuracy on analog-digital hardware in the presence of quantization and analog noise include noise-injection training. However, it can be slow in practice, incurring high computational costs, even when…

机器学习 · 计算机科学 2023-06-06 Lakshmi Nair , Darius Bunandar

Federated learning (FL) with noisy labels poses a significant challenge. Existing methods designed for handling noisy labels in centralized learning tend to lose their effectiveness in the FL setting, mainly due to the small dataset size…

机器学习 · 计算机科学 2024-01-11 Lei Wang , Jieming Bian , Jie Xu

In recent years, decentralized sensor networks have garnered significant attention in the field of state estimation owing to enhanced robustness, scalability, and fault tolerance. Optimal fusion performance can be achieved under fully…

信号处理 · 电气工程与系统科学 2025-08-27 Ruifeng Dong , Ming Wang , Ning Liu , Tong Guo , Jiayi Kang , Xiaojing Shen , Yao Mao

Sound sources localization using multichannel signal processing has been a subject of active research for decades. In recent years, the use of deep learning in audio signal processing has allowed to drastically improve performances for…

音频与语音处理 · 电气工程与系统科学 2021-06-16 Hadrien Pujol , Éric Bavu , Alexandre Garcia