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In this work we investigate the behavior of the minimal rate needed in order to guarantee a given probability that the distortion exceeds a prescribed threshold, at some fixed finite quantization block length. We show that the excess coding…

信息论 · 计算机科学 2011-02-15 Amir Ingber , Yuval Kochman

With today's increasing demand for digital devices in Substation Automation Systems (SAS) based on the IEC61850 standard, the measured data error due to the synchronization problem should be considered as a significant problem in…

系统与控制 · 电气工程与系统科学 2021-08-27 Mohammad Hashemi , Bijan Alizadeh

In this article, we develop comprehensive frequency domain methods for estimating and inferring the second-order structure of spatial point processes. The main element here is on utilizing the discrete Fourier transform (DFT) of the point…

统计方法学 · 统计学 2025-01-24 Junho Yang , Yongtao Guan

Low-density parity-check (LDPC) codes with the parity-based approach for distributed joint source channel coding (DJSCC) with decoder side information is described in this paper. The parity-based approach is theoretical limit achievable.…

信息论 · 计算机科学 2014-04-10 Feng Cen

Accurate beam alignment is a critical challenge in XL-MIMO systems, especially in the near-field regime, where conventional far-field assumptions no longer hold. Although 2D grid-based codebooks in the polar domain are widely accepted for…

信号处理 · 电气工程与系统科学 2025-02-27 Hongjun Heo , Wan Choi

Motivated by a host of recent applications requiring some amount of redundancy, frames are becoming a standard tool in the signal processing toolbox. In this paper, we study a specific class of frames, known as discrete Fourier transform…

信息论 · 计算机科学 2015-06-05 Mojtaba Vaezi , Fabrice Labeau

Semantic communications are expected to accomplish various semantic tasks with relatively less spectrum resource by exploiting the semantic feature of source data. To simultaneously serve both the data transmission and semantic tasks, joint…

信息论 · 计算机科学 2023-08-15 Jianhao Huang , Dongxu Li , Chuan Huang , Xiaoqi Qin , Wei Zhang

We propose a new coding scheme, called the delayed coding (DC) scheme, for channels with insertion, deletion, and substitution (IDS) errors. The proposed scheme employs delayed encoding and non-iterative detection and decoding strategies to…

信息论 · 计算机科学 2022-05-25 Ryo Shibata , Hiroyuki Yashima

Many images and videos are primarily processed by computer vision algorithms, involving only occasional human inspection. When this content requires compression before processing, e.g., in distributed applications, coding methods must…

图像与视频处理 · 电气工程与系统科学 2025-08-27 Samuel Fernández-Menduiña , Eduardo Pavez , Antonio Ortega

Existing circuit discovery methods rely on templated tasks with clean counterfactuals, limiting their use on diverse natural text. We adapt Contextual Decomposition for Transformers (CD-T) for unstructured settings via label-balanced…

计算与语言 · 计算机科学 2026-05-27 Khumaisa Nur'aini , Ayu Purwarianti , Alham Fikri Aji , Derry Wijaya

In this paper, rate adaptive coded Digital Phase Modulation (DPM) schemes based on punctured ring convolutional codes are presented. We first present an upper bound on symbol error probability for punctured convolutional coded Continuous…

信号处理 · 电气工程与系统科学 2018-08-02 Yang Liu , Zihuai Lin

In image compression, classical block-based separable transforms tend to be inefficient when image blocks contain arbitrarily shaped discontinuities. For this reason, transforms incorporating directional information are an appealing…

信息论 · 计算机科学 2018-10-24 Giulia Fracastoro , Sophie Marie Fosson , Enrico Magli

Differential distributed space-time coding (D-DSTC) is a cooperative transmission technique that can improve diversity in wireless relay networks in the absence of channel information. Conventionally, it is assumed that channels are…

信息论 · 计算机科学 2014-11-18 M. R. Avendi , Hamid Jafarkhani

We consider a distributed source coding problem of $L$ correlated Gaussian observations $Y_i, i=1,2,...,L$. We assume that the random vector $Y^{L}={}^{\rm t} (Y_1,Y_2,$ $...,Y_L)$ is an observation of the Gaussian random vector…

信息论 · 计算机科学 2010-01-13 Yasutada Oohama

The $N$-point discrete Fourier transform (DFT) is a cornerstone for several signal processing applications. Many of these applications operate in real-time, making the computational complexity of the DFT a critical performance indicator to…

数据结构与算法 · 计算机科学 2024-12-18 Saulo Queiroz , João P. Vilela , Edmundo Monteiro

State-of-the-art methods for Convolutional Sparse Coding usually employ Fourier-domain solvers in order to speed up the convolution operators. However, this approach is not without shortcomings. For example, Fourier-domain representations…

图像与视频处理 · 电气工程与系统科学 2019-09-04 Jinhui Xiong , Peter Richtárik , Wolfgang Heidrich

Automatic font generation without human experts is a practical and significant problem, especially for some languages that consist of a large number of characters. Existing methods for font generation are often in supervised learning. They…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Xinyuan Chen , Yangchen Xie , Li Sun , Yue Lu

Image Representation learning via input reconstruction is a common technique in machine learning for generating representations that can be effectively utilized by arbitrary downstream tasks. A well-established approach is using…

神经与进化计算 · 计算机科学 2025-06-10 Raoof HojatJalali , Edmondo Trentin

Dynamic point cloud compression (DPCC) is crucial in applications like autonomous driving and AR/VR. Current compression methods face challenges with complexity management and rate control. This paper introduces a novel dynamic coding…

多媒体 · 计算机科学 2025-08-29 Chenhao Zhang , Wei Gao

Despite its widespread use, density functional theory (DFT) has several notable areas of failure; perhaps the most well-studied of these failures is self-interaction error (SIE). Density corrected DFT (DC-DFT) was proposed as a potential…

化学物理 · 物理学 2023-06-28 Devin J. Hernandez , Adam Rettig , Martin Head-Gordon