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Like classical block codes, a locally repairable code also obeys the Singleton-type bound (we call a locally repairable code {\it optimal} if it achieves the Singleton-type bound). In the breakthrough work of \cite{TB14}, several classes of…

信息论 · 计算机科学 2018-01-12 Yuan Luo , Chaoping Xing , Chen Yuan

In this work, lossy distributed compression of pairs of correlated sources is considered. Conventionally, Shannon's random coding arguments -- using randomly generated unstructured codebooks whose blocklength is taken to be asymptotically…

信息论 · 计算机科学 2020-10-21 Farhad Shirani , S. Sandeep Pradhan

Codes that can correct up to $t$ symmetric errors and detect all unidirectional errors, known as $t$-EC-AUED codes, are studied in this paper. Given positive integers $q$, $a$ and $t$, let $n_q(a,t+1)$ denote the length of the shortest…

信息论 · 计算机科学 2019-06-17 Yeow Meng Chee , Xiande Zhang

We present lower bounds on the minimum pseudocodeword effective Euclidean distance (or minimum "pseudodistance") for coded modulation systems using linear codes with $q$-ary phase-shift keying (PSK) modulation over the additive white…

信息论 · 计算机科学 2008-06-12 Vitaly Skachek , Mark F. Flanagan

Convolutional neural networks have shown impressive abilities in many applications, especially those related to the classification tasks. However, for the regression problem, the abilities of convolutional structures have not been fully…

机器学习 · 计算机科学 2023-01-23 Zhiying Fang , Guang Cheng

In this paper we study function-correcting codes, a new class of codes designed to protect the function evaluation of a message against errors. We show that FCCs are equivalent to irregular-distance codes, i.e., codes that obey some given…

信息论 · 计算机科学 2023-05-24 Andreas Lenz , Rawad Bitar , Antonia Wachter-Zeh , Eitan Yaakobi

Constant-dimension codes have recently received attention due to their significance to error control in noncoherent random linear network coding. What the maximal cardinality of any constant-dimension code with finite dimension and minimum…

信息论 · 计算机科学 2010-03-31 Maximilien Gadouleau , Zhiyuan Yan

Quantum error correction (QEC) is an essential concept for any quantum information processing device. Typically, QEC is designed with minimal assumptions about the noise process; this generic assumption exacts a high cost in efficiency and…

量子物理 · 物理学 2007-06-26 Andrew S. Fletcher

Although there is extensive literature on the application of artificial neural networks (NNs) in quality control (QC), to monitor the conformity of a process to quality specifications, at least five QC measurements are required, increasing…

神经与进化计算 · 计算机科学 2023-10-19 Rallou A. Chatzimichail , Aristides T. Hatjimihail

We present two constructions for binary self-orthogonal codes. It turns out that our constructions yield a constructive bound on binary self-orthogonal codes. In particular, when the information rate R=1/2, by our constructive lower bound,…

信息论 · 计算机科学 2015-05-13 Yang Ding

Deep convolutional neural networks (CNNs) have dominated many computer vision domains because of their great power to extract good features automatically. However, many deep CNNs-based computer vison tasks suffer from lack of training data…

计算机视觉与模式识别 · 计算机科学 2018-08-21 Jie Guo , Tingfa Xu , Shenwang Jiang , Ziyi Shen

Locally repairable codes with locality $r$ ($r$-LRCs for short) were introduced by Gopalan et al. \cite{1} to recover a failed node of the code from at most other $r$ available nodes. And then $(r,\delta)$ locally repairable codes…

信息论 · 计算机科学 2018-10-03 Weijun Fang , Fang-Wei Fu

In distributed optimization problems, a technique called gradient coding, which involves replicating data points, has been used to mitigate the effect of straggling machines. Recent work has studied approximate gradient coding, which…

机器学习 · 统计学 2021-08-09 Margalit Glasgow , Mary Wootters

A code is called a locally repairable code (LRC) if any code symbol is a function of a small fraction of other code symbols. When a locally repairable code is employed in a distributed storage systems, an erased symbol can be recovered by…

信息论 · 计算机科学 2021-11-25 Wei Zhao , Kenneth W. Shum , Shenghao Yang

Recent advancements in convolutional neural network (CNN)-based techniques for remote sensing pansharpening have markedly enhanced image quality. However, conventional convolutional modules in these methods have two critical drawbacks.…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Xueyang Wang , Zhixin Zheng , Jiandong Shao , Yule Duan , Liang-Jian Deng

This paper revisits polar code design for a binary-input additive white Gaussian noise (BI-AWGN) channel when successive cancellation (SC) decoding is applied at the receiver. We focus on the reciprocal channel approximation (RCA), which is…

信息论 · 计算机科学 2022-04-25 Hideki Ochiai , Kosuke Ikeya , Patrick Mitran

We study the worst-case behavior of Block Coordinate Descent (BCD) type algorithms for unconstrained minimization of coordinate-wise smooth convex functions. This behavior is indeed not completely understood, and the practical success of…

最优化与控制 · 数学 2025-07-23 Yassine Kamri , François Glineur , Julien M. Hendrickx , Ion Necoara

The problem of mismatched decoding with an additive metric $q$ for a discrete memoryless channel $W$ is addressed. The "product-space" improvement of the random coding lower bound on the mismatch capacity, $C_q^{(\infty)}(W)$, was…

信息论 · 计算机科学 2018-05-29 Anelia Somekh-Baruch

In this paper, we deal with time-invariant spatially coupled low-density parity-check convolutional codes (SC-LDPC-CCs). Classic design approaches usually start from quasi-cyclic low-density parity-check (QC-LDPC) block codes and exploit…

Shaping codes are used to encode information for use on channels with cost constraints. Applications include data transmission with a power constraint and, more recently, data storage on flash memories with a constraint on memory cell wear.…

信息论 · 计算机科学 2020-01-10 Yi Liu , Pengfei Huang , Alexander W. Bergman , Paul H. Siegel
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