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We present shuffle coding, a general method for optimal compression of sequences of unordered objects using bits-back coding. Data structures that can be compressed using shuffle coding include multisets, graphs, hypergraphs, and others. We…

机器学习 · 计算机科学 2024-08-19 Julius Kunze , Daniel Severo , Giulio Zani , Jan-Willem van de Meent , James Townsend

The one-bit compressed sensing framework aims to reconstruct a sparse signal by only using the sign information of its linear measurements. To compensate for the loss of scale information, past studies in the area have proposed recovering…

信息论 · 计算机科学 2016-09-21 Yingying Xu , Yoshiyuki Kabashima

Audio data are widely exchanged over telecommunications networks. Due to the limitations of network resources, these data are typically compressed before transmission. Various methods are available for compressing audio data. To access such…

多媒体 · 计算机科学 2025-02-12 Farzane Jafari

From a long time ago, beside encryption of data and making it secure, compression packing it was also important that could make transmission of data faster. In the past years need for improvement of encryption and compression for a fast and…

密码学与安全 · 计算机科学 2018-12-19 Saber Malekzadeh

Cross encoders (CEs) are trained with sentence pairs to detect relatedness. As CEs require sentence pairs at inference, the prevailing view is that they can only be used as re-rankers in information retrieval pipelines. Dual encoders (DEs)…

计算与语言 · 计算机科学 2025-02-07 Haritha Ananthakrishnan , Julian Dolby , Harsha Kokel , Horst Samulowitz , Kavitha Srinivas

Batch codes, introduced by Ishai, Kushilevitz, Ostrovsky and Sahai in [1], are methods for solving the following data storage problem: n data items are to be stored in m servers in such a way that any k of the n items can be retrieved by…

离散数学 · 计算机科学 2011-02-25 Srimanta Bhattacharya , Sushmita Ruj , Bimal Roy

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

Physical-layer Network Coding (PNC) makes use of the additive nature of the electromagnetic (EM) waves to apply network coding arithmetic at the physical layer. With PNC,the destructive effect of interference in wireless networks is…

网络与互联网体系结构 · 计算机科学 2010-01-05 Shengli Zhang , Soung-Chang Liew , Hui Wang

Spreading the information over all coefficients of a representation is a desirable property in many applications such as digital communication or machine learning. This so-called antisparse representation can be obtained by solving a convex…

机器学习 · 计算机科学 2020-07-15 Clément Elvira , Cédric Herzet

We present Pcodec (Pco), a format and algorithm for losslessly compressing numerical (float or integer) sequences. Pco's core and most novel component is a binning algorithm that quickly converges to the true entropy of smoothly,…

信息论 · 计算机科学 2025-05-27 Martin Loncaric , Niels Jeppesen , Ben Zinberg

Quantum synchronizable codes are kinds of quantum error-correcting codes that can not only correct the effects of quantum noise on qubits but also the misalignment in block synchronization. In this paper, the quantum synchronizable codes…

密码学与安全 · 计算机科学 2021-05-11 Tao Wang , Tongjiang Yan , Xueting Wang

Large-scale deep learning models impose substantial communication overh ead in distributed training, particularly in bandwidth-constrained or heterogeneous clo ud-edge environments. Conventional synchronous or fixed-compression techniques o…

分布式、并行与集群计算 · 计算机科学 2025-12-23 Yi Yang , Ziyu Lin , Liesheng Wei

In order to achieve fault tolerance, highly reliable system often require the ability to detect errors as soon as they occur and prevent the speared of erroneous information throughout the system. Thus, the need for codes capable of…

信息论 · 计算机科学 2010-02-08 Muzhir Al-Ani , Qeethara Al-Shayea

A compression algorithm is presented that uses the set of prime numbers. Sequences of numbers are correlated with the prime numbers, and labeled with the integers. The algorithm can be iterated on data sets, generating factors of doubles on…

综合物理 · 物理学 2007-05-23 Gordon Chalmers

In the short block length regime, pre-transformed polar codes together with successive cancellation list (SCL) decoding possess excellent error correction capabilities. However, in practice, the list size is limited due to the suboptimal…

Lossy compression algorithms are typically designed to achieve the lowest possible distortion at a given bit rate. However, recent studies show that pursuing high perceptual quality would lead to increase of the lowest achievable distortion…

信息论 · 计算机科学 2021-06-15 Zeyu Yan , Fei Wen , Rendong Ying , Chao Ma , Peilin Liu

We extend Ziv and Lempel's model of finite-state encoders to the realm of lossy compression of individual sequences. In particular, the model of the encoder includes a finite-state reconstruction codebook followed by an information lossless…

信息论 · 计算机科学 2024-01-04 Neri Merhav

Caching is popular technique in content delivery networks that allows for reductions in transmission rates from the content-hosting server to the end users. Coded caching is a generalization of conventional caching that considers the…

信息论 · 计算机科学 2016-07-28 Li Tang , Aditya Ramamoorthy

Bitmap indexes must be compressed to reduce input/output costs and minimize CPU usage. To accelerate logical operations (AND, OR, XOR) over bitmaps, we use techniques based on run-length encoding (RLE), such as Word-Aligned Hybrid (WAH)…

数据库 · 计算机科学 2016-08-02 Daniel Lemire , Owen Kaser , Kamel Aouiche

The size of collections, maps, and data structures in general, constitutes a fundamental property. An implementation of the size method is required in most programming environments. Nevertheless, in a concurrent environment, integrating a…

分布式、并行与集群计算 · 计算机科学 2025-06-23 Hen Kas-Sharir , Gal Sela , Erez Petrank