Results 51 to 60 of about 1,793 (257)

A New Adaptive Coding Selection Method for Distributed Storage Systems

open access: yesIEEE Access, 2018
Erasure codes, such as Reed-Solomon (RS) codes and local reconstruction codes (LRCs), are being increasingly adopted in distributed storage systems since they offer lower redundancy than data replication.
Bing Wei   +4 more
doaj   +1 more source

Optimal Erasure Codes and Codes on Graphs

open access: yesCoRR
We construct constant-sized ensembles of linear error-correcting codes over any fixed alphabet that can correct a given fraction of adversarial erasures at rates approaching the Singleton bound arbitrarily closely. We provide several applications of our results: 1.
Yeyuan Chen   +2 more
openaire   +2 more sources

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

On the Generalized Hamming Weights of (r, δ)-Locally Repairable Codes

open access: yesIEEE Access, 2020
Locally repairable codes (LRCs) have attracted a lot of interests recently due to their important applications in distributed storage systems. An (n, k, r, δ)-LRC (δ ≥ 2) is an [n, k, d] linear code such that each of the n code ...
Jie Hao, Bin Chen
doaj   +1 more source

Optimistic Erasure-Coded Distributed Storage [PDF]

open access: yes, 2008
We study erasure-coded atomic register implementations in an asynchronous crash-recovery model. Erasure coding provides a cheap and space-efficient way to tolerate failures in a distributed system. This paper presents ORCAS, Optimistic eRasure-Coded Atomic Storage, which consists of two separate implementations, ORCAS-A and ORCAS-B. In terms of storage
Dutta, Partha   +2 more
openaire   +2 more sources

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

open access: yesAdvanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son   +20 more
wiley   +1 more source

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

Minimum Storage Regenerating Codes for Scalable Distributed Storage

open access: yesIEEE Access, 2017
Regenerating codes (RGCs) have recently been proposed to reduce the repair traffic of ( $n,k$ ) erasure-coded distributed storage systems. Moreover, RGCs can also be used in a scalable distributed storage scenario where $n$ is increased (decreased) to ...
Huayu Zhang   +4 more
doaj   +1 more source

Three Efficient All-Erasure Decoding Methods for Blaum–Roth Codes

open access: yesEntropy, 2022
Blaum–Roth Codes are binary maximum distance separable (MDS) array codes over the binary quotient ring F2[x]/(Mp(x)), where Mp(x)=1+x+⋯+xp−1, and p is a prime number.
Weijie Zhou, Hanxu Hou
doaj   +1 more source

Coding for Errors and Erasures in Random Network Coding

open access: yes2007 IEEE International Symposium on Information Theory, 2007
The problem of error-control in random linear network coding is considered. A ``noncoherent'' or ``channel oblivious'' model is assumed where neither transmitter nor receiver is assumed to have knowledge of the channel transfer characteristic. Motivated by the property that linear network coding is vector-space preserving, information transmission is ...
Ralf Koetter, Frank R. Kschischang
openaire   +2 more sources

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