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Fundamental rate-distortion-perception (RDP) trade-offs arise in applications requiring maintained perceptual quality of reconstructed data, such as neural image compression. When compressed data is transmitted over public communication…

信息论 · 计算机科学 2026-04-23 Gustaf Åhlgren , Onur Günlü

To efficiently compress the sign information of images, we address a sign retrieval problem for the block-wise discrete cosine transformation (DCT): reconstruction of the signs of DCT coefficients from their amplitudes. To this end, we…

信息论 · 计算机科学 2025-07-08 Fuma Ito , Chihiro Tsutake , Keita Takahashi , Toshiaki Fujii

Magnetic data storage is pervasive in the preservation of digital information and the rapid pace of computer development requires ever more capacity. Increasing the storage density for magnetic hard disk drives requires a reduced bit size,…

材料科学 · 物理学 2013-10-24 R. F. L. Evans , R. W. Chantrell , U. Nowak , A. Lyberatos , H-J. Richter

Objective: This work aims to reduce the acoustic noise level of transcranial magnetic stimulation (TMS) coils. TMS requires high currents (several thousand amperes) to be pulsed through the coil, which generates a loud acoustic impulse…

医学物理 · 物理学 2020-07-03 Lari M. Koponen , Stefan M. Goetz , Angel V. Peterchev

This article discusses the theory, model, implementation and performance of a combinatorial fuzzy-binary and-or (FBAR) algorithm for lossless data compression (LDC) and decompression (LDD) on 8-bit characters. A combinatorial pairwise flags…

信息论 · 计算机科学 2015-03-19 Philip B. Alipour

Ternary channels can be used to model the behavior of some memory devices, where information is stored in three different levels. In this paper, error correcting coding for a ternary channel where some of the error transitions are not…

信息论 · 计算机科学 2011-05-31 Nicolas Bitouze , Alexandre Graell i Amat , Eirik Rosnes

Symbol-pair codes were proposed for the application in high density storage systems, where it is not possible to read individual symbols. Yaakobi, Bruck and Siegel proved that the minimum pair-distance of binary linear cyclic codes…

信息论 · 计算机科学 2023-03-27 Hao Chen

Multi-dimensional non-Cartesian MRI encoding using the precomputed interpolator can encounter the curse of dimensionality, in which the interpolator size exceeds the available memory on the parallel accelerators. Here we reformulate the…

医学物理 · 物理学 2020-06-02 Jyh-Miin Lin , Grzegorz Kowalik , Jennifer A. Steeden , Vivek Muthurangu

Multiple-input double-output (MIDO) codes are important in the near-future wireless communications, where the portable end-user device is physically small and will typically contain at most two receive antennas. Especially tempting is the 4…

信息论 · 计算机科学 2016-11-15 Roope Vehkalahti , Camilla Hollanti , Frédérique Oggier

Layered transition metal dichalcogenides (TMDs) provide an ideal platform for exploring the effects of dimensionality on correlated electronic phases such as charge density wave (CDW) order. When TMDs are reduced in thickness to the 2-D…

介观与纳米尺度物理 · 物理学 2016-11-03 Linjun Li , WeiJie Zhao , Bo Liu , Tianhua Ren , Goki Eda , Kianping Loh

A two-dimensional grid with dots is called a \emph{configuration with distinct differences} if any two lines which connect two dots are distinct either in their length or in their slope. These configurations are known to have many…

组合数学 · 数学 2009-10-08 Simon R. Blackburn , Tuvi Etzion , Keith M. Martin , Maura B. Paterson

We propose two 8-dimensional (8D) modulation formats (8D-2048PRS-T1 and 8D-2048PRS-T2) with a spectral efficiency of 5.5 bit/4D-sym, where the 8 dimensions are obtained from two time slots and two polarizations. Both formats provide a…

信号处理 · 电气工程与系统科学 2019-09-30 Bin Chen , Chigo Okonkwo , Hartmut Hafermann , Alex Alvarado

This paper presents private information retrieval (PIR) schemes for coded storage with colluding servers, which are not restricted to maximum distance separable (MDS) codes. PIR schemes for general linear codes are constructed and the…

A constant-rate encoder--decoder pair is presented for a fairly large family of two-dimensional (2-D) constraints. Encoding and decoding is done in a row-by-row manner, and is sliding-block decodable. Essentially, the 2-D constraint is…

信息论 · 计算机科学 2008-08-06 Ido Tal , Tuvi Etzion , Ron M. Roth

This paper describes a new method of data encoding which may be used in various modern digital, computer and telecommunication systems and devices. The method permits the compression of data for storage or transmission, allowing the exact…

信息论 · 计算机科学 2012-01-27 Igor Nesiolovskiy , Artem Nesiolovskiy

This paper proposes a novel joint non-binary network-channel code for the Time-Division Decode-and-Forward Multiple Access Relay Channel (TD-DF-MARC), where the relay linearly combines -- over a non-binary finite field -- the coded…

信息论 · 计算机科学 2016-11-15 Mikel Hernaez , Pedro M. Crespo , Javier Del Ser

The distributed data storage systems are constructed by large number of nodes which are interconnected over a network. Each node in such peer-to-peer network is vulnerable and at a potential risk for attack. The attackers can eavesdrop the…

信息论 · 计算机科学 2016-02-08 Ninoslav Marina , Aneta Velkoska , Natasa Paunkoska

Synthetic polymer-based storage seems to be a particularly promising candidate that could help to cope with the ever-increasing demand for archival storage requirements. It involves designing molecules of distinct masses to represent the…

信息论 · 计算机科学 2026-04-02 Anisha Banerjee , Antonia Wachter-Zeh , Eitan Yaakobi

We consider the problem of multiple descriptions (MD) source coding and propose new coding strategies involving both unstructured and structured coding layers. Previously, the most general achievable rate-distortion (RD) region for the…

信息论 · 计算机科学 2016-02-08 Farhad Shirani , S. Sandeep Pradhan

Structured codes based on lattices were shown to provide enlarged capacity for multi-user communication networks. In this paper, we study capacity-approaching irregular repeat accumulate (IRA) codes over integer rings $\mathbb{Z}_{2^{m}}$…

信息论 · 计算机科学 2022-10-05 Fangtao Yu , Tao Yang , Qiuzhuo Chen