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For extremely large-scale arrays (XL-arrays), the discrete Fourier transform (DFT) codebook, conventionally used in the far-field, has recently been employed for near-field beam training. However, most existing methods rely on the…

信号处理 · 电气工程与系统科学 2026-03-27 Jiapeng Li , Changsheng You , Guoliang Cheng , Haobin Sun , Chao Zhou , Linglong Dai

In this work, we present Blind-Spot Guided Diffusion, a novel self-supervised framework for real-world image denoising. Our approach addresses two major challenges: the limitations of blind-spot networks (BSNs), which often sacrifice local…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Shen Cheng , Haipeng Li , Haibin Huang , Xiaohong Liu , Shuaicheng Liu

In this paper, we propose a novel deep unsupervised learning-based approach that jointly optimizes antenna selection and hybrid beamforming to improve the hardware and spectral efficiencies of massive multiple-input-multiple-output (MIMO)…

信号处理 · 电气工程与系统科学 2022-01-24 Zhiyan Liu , Yuwen Yang , Feifei Gao , Ting Zhou , Hongbing Ma

Recent supervised multi-view depth estimation networks have achieved promising results. Similar to all supervised approaches, these networks require ground-truth data during training. However, collecting a large amount of multi-view depth…

计算机视觉与模式识别 · 计算机科学 2021-04-08 Jiayu Yang , Jose M. Alvarez , Miaomiao Liu

There are inevitably many mislabeled data in real-world datasets. Because deep neural networks (DNNs) have an enormous capacity to memorize noisy labels, a robust training scheme is required to prevent labeling errors from degrading the…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Jun Ho Lee , Jae Soon Baik , Tae Hwan Hwang , Jun Won Choi

This paper investigates semi-blind channel estimation for massive multiple-input multiple-output (MIMO) systems. To this end, we first estimate a subspace based on all received symbols (pilot and payload) to provide additional information…

信号处理 · 电气工程与系统科学 2025-10-22 Franz Weißer , Nurettin Turan , Dominik Semmler , Fares Ben Jazia , Wolfgang Utschick

In this paper, an efficient massive multiple-input multiple-output (MIMO) detector is proposed by employing a deep neural network (DNN). Specifically, we first unfold an existing iterative detection algorithm into the DNN structure, such…

信号处理 · 电气工程与系统科学 2020-04-16 Jieyu Liao , Junhui Zhao , Feifei Gao , Geoffrey Ye Li

Neural network models that are not conditioned on class identities were shown to facilitate knowledge transfer between classes and to be well-suited for one-shot learning tasks. Following this motivation, we further explore and establish…

机器学习 · 统计学 2018-06-28 Gil Keren , Maximilian Schmitt , Thomas Kehrenberg , Björn Schuller

Medical image denoising is considered among the most challenging vision tasks. Despite the real-world implications, existing denoising methods have notable drawbacks as they often generate visual artifacts when applied to heterogeneous…

图像与视频处理 · 电气工程与系统科学 2025-03-11 S M A Sharif , Rizwan Ali Naqvi , Woong-Kee Loh

The potential for augmenting the segmentation of brain tumors through the use of few-shot learning is vast. Although several deep learning networks (DNNs) demonstrate promising results in terms of segmentation, they require a substantial…

图像与视频处理 · 电气工程与系统科学 2024-01-11 Ahmed Ayman

Extremely large-scale multiple-input multiple-output (XL-MIMO) enables the formation of narrow beams, effectively mitigating path loss in high-frequency communications. This capability makes the integration of wideband high-frequency…

信号处理 · 电气工程与系统科学 2025-05-27 Peicong Zheng , Xuantao Lyu , Ye Wang , Yi Gong

This letter presents the first work introducing a deep learning (DL) framework for channel estimation in large intelligent surface (LIS) assisted massive MIMO (multiple-input multiple-output) systems. A twin convolutional neural network…

信号处理 · 电气工程与系统科学 2020-09-11 Ahmet M. Elbir , A Papazafeiropoulos , P. Kourtessis , S. Chatzinotas

A quasi-static flat multiple-antenna channel is considered. We show how real multilevel modulation symbols can be detected via deep neural networks. A multi-plateau sigmoid function is introduced. Then, after showing the DNN architecture…

信息论 · 计算机科学 2019-02-15 Vincent Corlay , Joseph J. Boutros , Philippe Ciblat , Loïc Brunel

Few-shot learning is the process of learning novel classes using only a few examples and it remains a challenging task in machine learning. Many sophisticated few-shot learning algorithms have been proposed based on the notion that networks…

机器学习 · 计算机科学 2019-10-04 Akihiro Nakamura , Tatsuya Harada

One of the greatest obstacles in the adoption of deep neural networks for new applications is that training the network typically requires a large number of manually labeled training samples. We empirically investigate the scenario where…

机器学习 · 计算机科学 2020-04-09 Leslie N. Smith , Adam Conovaloff

The combination of Terahertz (THz) and massive multiple-input multiple-output (MIMO) is promising to meet the increasing data rate demand of future wireless communication systems thanks to the huge bandwidth and spatial degrees of freedom.…

信息论 · 计算机科学 2024-08-14 Jiabao Gao , Xiaoming Cheng , Geoffrey Ye Li

Reconfigurable antennas that can dynamically change their operation state exhibit excellent adaptivity and flexibility over traditional antennas, and MIMO arrays that consist of multifunctional and reconfigurable antennas (MRAs) are…

信号处理 · 电气工程与系统科学 2023-04-07 Mu Liang , Ang Li

To compensate the loss from outdated channel state information in wideband massive multiple-input multipleoutput (MIMO) systems, channel prediction can be performed by leveraging the temporal correlation of wireless channels. Machine…

信息论 · 计算机科学 2022-08-10 Beomsoo Ko , Hwanjin Kim , Junil Choi

Deep learning, in general, focuses on training a neural network from large labeled datasets. Yet, in many cases there is value in training a network just from the input at hand. This is particularly relevant in many signal and image…

机器学习 · 计算机科学 2024-04-09 Tom Tirer , Raja Giryes , Se Young Chun , Yonina C. Eldar

In this paper, we reveal that artificial neural network (ANN) assisted multiple-input multiple-output (MIMO) signal detection can be modeled as ANN-assisted lossy vector quantization (VQ), named MIMO-VQ, which is basically a joint…

信号处理 · 电气工程与系统科学 2020-04-02 Songyan Xue , Yi Ma , Na Yi , Terence E. Dodgson