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In this work, we propose a fully differentiable graph neural network (GNN)-based architecture for channel decoding and showcase a competitive decoding performance for various coding schemes, such as low-density parity-check (LDPC) and BCH…

信息论 · 计算机科学 2022-10-13 Sebastian Cammerer , Jakob Hoydis , Fayçal Aït Aoudia , Alexander Keller

In this paper, we address the problem of extracting all super-Gaussian source signals from a linear mixture in which (i) the number of super-Gaussian sources $K$ is less than that of sensors $M$, and (ii) there are up to $M - K$ stationary…

信号处理 · 电气工程与系统科学 2021-05-05 Rintaro Ikeshita , Tomohiro Nakatani , Shoko Araki

Recently deep learning-based image compression methods have achieved significant achievements and gradually outperformed traditional approaches including the latest standard Versatile Video Coding (VVC) in both PSNR and MS-SSIM metrics. Two…

图像与视频处理 · 电气工程与系统科学 2024-02-13 Haisheng Fu , Feng Liang , Jianping Lin , Bing Li , Mohammad Akbari , Jie Liang , Guohe Zhang , Dong Liu , Chengjie Tu , Jingning Han

This paper derives the analytical solution of a novel distributed node-specific block-diagonal linearly constrained minimum variance beamformer from the centralized linearly constrained minimum variance (LCMV) beamformer when considering…

音频与语音处理 · 电气工程与系统科学 2020-10-27 Xinwei Guo , Minmin Yuan , Chengshi Zheng , Xiaodong Li

In this paper, we study the zero-delay source-channel coding problem, and specifically the problem of obtaining the vector transformations that optimally map between the m-dimensional source space and the k-dimensional channel space, under…

信息论 · 计算机科学 2016-11-15 Emrah Akyol , Kumar Viswanatha , Kenneth Rose , Tor Ramstad

Graph Convolutional Networks (GCNs) are extensively utilized for deep learning on graphs. The large data sizes of graphs and their vertex features make scalable training algorithms and distributed memory systems necessary. Since the…

机器学习 · 计算机科学 2022-12-14 Gunduz Vehbi Demirci , Aparajita Haldar , Hakan Ferhatosmanoglu

Graph Convolutional Networks (GCNs) have shown very powerful for graph data representation and learning tasks. Existing GCNs usually conduct feature aggregation on a fixed neighborhood graph in which each node computes its representation by…

计算机视觉与模式识别 · 计算机科学 2019-11-21 Bo Jiang , Beibei Wang , Jin Tang , Bin Luo

Graph convolutional networks (GCNs) are powerful deep neural networks for graph-structured data. However, GCN computes the representation of a node recursively from its neighbors, making the receptive field size grow exponentially with the…

机器学习 · 统计学 2018-03-02 Jianfei Chen , Jun Zhu , Le Song

In this paper, we consider the problem of minimizing the multicast decoding delay of generalized instantly decodable network coding (G-IDNC) over persistent forward and feedback erasure channels with feedback intermittence. In such an…

信息论 · 计算机科学 2014-07-10 Ahmed Douik , Sameh Sorour , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

Video and image coding for machines (VCM) is an emerging field that aims to develop compression methods resulting in optimal bitstreams when the decoded frames are analyzed by a neural network. Several approaches already exist improving…

图像与视频处理 · 电气工程与系统科学 2022-05-16 Kristian Fischer , Christian Forsch , Christian Herglotz , André Kaup

We consider the problem of distributed joint source-channel coding of correlated Gaussian sources over a Gaussian Multiple Access Channel (GMAC). There may be side information at the decoder and/or at the encoders. First we specialize a…

信息论 · 计算机科学 2009-05-15 R Rajesh , Vinod Sharma

Generalized mutual information (GMI) is used to compute achievable rates for fading channels with various types of channel state information at the transmitter (CSIT) and receiver (CSIR). The GMI is based on variations of auxiliary channel…

信息论 · 计算机科学 2023-05-23 Gerhard Kramer

Intra prediction is an essential component in the image coding. This paper gives an intra prediction framework completely based on neural network modes (NM). Each NM can be regarded as a regression from the neighboring reference blocks to…

图像与视频处理 · 电气工程与系统科学 2021-08-06 Heming Sun , Lu Yu , Jiro Katto

Channel decoding is a challenging task in communication channels exhibiting memory effects. In this work, we apply the recently proposed decoding paradigm of guessing random additive noise decoding (GRAND) to channels with memory, focusing…

信息论 · 计算机科学 2026-03-12 Zhuang Li , Wenyi Zhang

Gaussian Process (GP) Variational Autoencoders (VAEs) extend standard VAEs by replacing the fully factorised Gaussian prior with a GP prior, thereby capturing richer correlations among latent variables. However, performing exact GP…

机器学习 · 计算机科学 2025-08-18 Xinxing Shi , Xiaoyu Jiang , Mauricio A. Álvarez

The generalized Gauss-Newton (GGN) optimization method incorporates curvature estimates into its solution steps, and provides a good approximation to the Newton method for large-scale optimization problems. GGN has been found particularly…

机器学习 · 计算机科学 2024-04-24 Adeyemi D. Adeoye , Philipp Christian Petersen , Alberto Bemporad

We propose to send a Gaussian source over an average-power limited additive white Gaussian noise channel by transmitting a linear combination of the source sequence and the result of its quantization using a high dimensional Gaussian vector…

信息论 · 计算机科学 2007-07-16 Shraga Bross , Amos Lapidoth , Stephan Tinguely

The network embedding problem that maps nodes in a graph to vectors in Euclidean space can be very useful for addressing several important tasks on a graph. Recently, graph neural networks (GNNs) have been proposed for solving such a…

机器学习 · 计算机科学 2020-09-23 Ping-En Lu , Cheng-Shang Chang

The visible light communication (VLC) technology has attracted much attention in the research of the sixth generation (6G) communication systems. In this paper, a novel three dimensional (3D) space-time-frequency non-stationary…

信号处理 · 电气工程与系统科学 2022-04-07 Xiuming Zhu , Cheng-Xiang Wang , Jie Huang , Ming Chen , Harald Haas

In this work, we consider the problem of a network of agents collectively minimizing a sum of convex functions. The agents in our setting can only access their local objective functions and exchange information with their immediate…

最优化与控制 · 数学 2019-10-01 Charikleia Iakovidou , Ermin Wei