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This paper presents a novel approach for multimodal data fusion based on the Vector-Quantized Variational Autoencoder (VQVAE) architecture. The proposed method is simple yet effective in achieving excellent reconstruction performance on…

机器学习 · 计算机科学 2025-01-20 Mohammud J. Bocus , Xiaoyang Wang , Robert. J. Piechocki

Millimeter-wave (mmWave) communication is a promising technology to cope with the exponential increase in 5G data traffic. Such networks typically require a very dense deployment of base stations. A subset of those, so-called macro base…

网络与互联网体系结构 · 计算机科学 2020-07-07 Dingwen Yuan , Hsuan-Yin Lin , Jörg Widmer , Matthias Hollick

In data driven deep learning, distributed sensing and joint computing bring heavy load for computing and communication. To face the challenge, over-the-air computation (OAC) has been proposed for multi-sensor data aggregation, which enables…

信号处理 · 电气工程与系统科学 2024-09-04 Mingjun Du , Sihui Zheng , Xiao-Ping Zhang , Yuhan Dong

This paper introduces a novel deep neural network architecture for solving the inverse scattering problem in frequency domain with wide-band data, by directly approximating the inverse map, thus avoiding the expensive optimization loop of…

数值分析 · 数学 2024-08-07 Borong Zhang , Leonardo Zepeda-Núñez , Qin Li

This paper studies fast downlink beamforming algorithms using deep learning in multiuser multiple-input-single-output systems where each transmit antenna at the base station has its own power constraint. We focus on the…

信息论 · 计算机科学 2020-03-02 Juping Zhang , Wenchao Xia , Minglei You , Gan Zheng , Sangarapillai Lambotharan , Kai-Kit Wong

We propose an efficient algorithm for sparse signal reconstruction problems. The proposed algorithm is an augmented Lagrangian method based on the dual sparse reconstruction problem. It is efficient when the number of unknown variables is…

机器学习 · 统计学 2010-10-06 Ryota Tomioka , Masashi Sugiyama

In this paper, we study a sampling problem where a source takes samples from a Wiener process and transmits them through a wireless channel to a remote estimator. Due to channel fading, interference, and potential collisions, the packet…

信息论 · 计算机科学 2023-10-19 Jiayu Pan , Yin Sun , Ness B. Shroff

Subjective evaluation results for two low-latency deep neural networks (DNN) are compared to a matured version of a traditional Wiener-filter based noise suppressor. The target use-case is real-world single-channel speech enhancement…

We present a new algorithm to perform wide-field radio interferometric image reconstruction, with exact non-coplanar correction, that scales to big-data. This algorithm allows us to image 2 billion visibilities on 50 nodes of a computing…

天体物理仪器与方法 · 物理学 2019-03-20 Luke Pratley , Jason D. McEwen

Accurate and robust wavefront reconstruction methods for pyramid wavefront sensors are in high demand as these sensors are planned to be part of many instruments currently under development for ground based telescopes. The pyramid sensor…

天体物理仪器与方法 · 物理学 2018-11-14 Victoria Hutterer , Ronny Ramlau

We consider a mathematical model of thermoacoustic tomography and other multi-wave imaging techniques with variable sound speed and attenuation. We find that a Neumann series reconstruction algorithm, previously studied under the assumption…

偏微分方程分析 · 数学 2012-12-21 Andrew Homan

Multichannel linear filters, such as the Multichannel Wiener Filter (MWF) and the Generalized Eigenvalue (GEV) beamformer are popular signal processing techniques which can improve speech recognition performance. In this paper, we present…

声音 · 计算机科学 2017-11-16 Ziteng Wang , Emmanuel Vincent , Romain Serizel , Yonghong Yan

Precoding matrix construction is a key element of the wireless signal processing using the multiple-input and multiple-output model. It is established that the problem of global throughput optimization under per-antenna power constraints…

数值分析 · 数学 2025-09-15 Sergey Petrov , Samson Lasaulce , Merouane Debbah

Massive multiple-input multiple-output (MIMO) systems are considered as one of the leading technologies employed in the next generations of wireless communication networks (5G), which promise to provide higher spectral efficiency, lower…

新兴技术 · 计算机科学 2021-07-21 Mahsa Salmani , Armaghan Eshaghi , Enxiao Luan , Sreenil Saha

Convolutional Neural Networks (CNNs) are highly effective for image reconstruction problems. Typically, CNNs are trained on large amounts of training images. Recently, however, un-trained CNNs such as the Deep Image Prior and Deep Decoder…

图像与视频处理 · 电气工程与系统科学 2021-04-29 Mohammad Zalbagi Darestani , Reinhard Heckel

We present Wave-Former, a novel method capable of high-accuracy 3D shape reconstruction for completely occluded, diverse, everyday objects. This capability can open new applications spanning robotics, augmented reality, and logistics. Our…

计算机视觉与模式识别 · 计算机科学 2025-11-20 Laura Dodds , Maisy Lam , Waleed Akbar , Yibo Cheng , Fadel Adib

Design of energy efficient protocols for modern wireless systems has become an important area of research. In this paper, we propose a distributed optimization algorithm for the channel assignment problem for multiple interfering…

网络与互联网体系结构 · 计算机科学 2018-02-16 Oshri Naparstek , S. M. Zafaruddin , Amir Leshem , Eduard Jorswieck

An estimation of the sky signal from streams of Time Ordered Data (TOD) acquired by Cosmic Microwave Background (\cmb) experiments is one of the most important steps in the context of \cmb data analysis referred to as the map-making…

宇宙学与河外天体物理 · 物理学 2018-10-17 Giuseppe Puglisi , Davide Poletti , Giulio Fabbian , Carlo Baccigalupi , Luca Heltai , Radek Stompor

We report the results of an in-depth analysis of the parameter estimation capabilities of BayesWave, an algorithm for the reconstruction of gravitational-wave signals without reference to a specific signal model. Using binary black hole…

广义相对论与量子宇宙学 · 物理学 2019-02-13 Francesco Pannarale , Ronaldas Macas , Patrick J. Sutton

We present a simple nonlinear digital pre-distortion (DPD) of optical transmitter components, which consists of concatenated blocks of a finite impulse response (FIR) filter, a memoryless nonlinear function and another FIR filter. The model…

信号处理 · 电气工程与系统科学 2020-12-16 Takeo Sasai , Masanori Nakamura , Etsushi Yamazaki , Asuka Matsushita , Seiji Okamoto , Kengo Horikoshi , Yoshiaki Kisaka