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Currently, an increasing number of users and enterprises are storing their data in the cloud but do not fully trust cloud providers with their data in plaintext form. To address this concern, they encrypt their data before uploading it to…

Cryptography and Security · Computer Science 2025-01-07 Zhaokang Ke , Haoyu Gong , David H. C. Du

In this paper we study the problem of storing reliably an archive of versioned data. Specifically, we focus on systems where the differences (deltas) between subsequent versions rather than the whole objects are stored - a typical model for…

Information Theory · Computer Science 2014-11-19 J. Harshan , Frédérique Oggier , Anwitaman Datta

The continuously increasing amount of digital data generated by today's society asks for better storage solutions. This survey looks at a new generation of coding techniques designed specifically for the needs of distributed networked…

Distributed, Parallel, and Cluster Computing · Computer Science 2013-01-31 Anwitaman Datta , Frederique Oggier

This letter is a proof of concept for an improved transmission switching (TS) performance by moving the search space to load shed buses. Research from the past shows that changing transmission system topology changes the power flows and…

Systems and Control · Electrical Eng. & Systems 2020-06-24 Tanveer Hussain , S M Shafiul Alam , Siddharth Suryanarayanan , Mayank Panwar

The exponential growth in data generation and large-scale data analysis creates an unprecedented need for inexpensive, low-latency, and high-density information storage. This need has motivated significant research into multi-level memory…

Data-intensive applications fueled the evolution of log structured merge (LSM) based key-value engines that employ the out-of-place paradigm to support high ingestion rates with low read/write interference. These benefits, however, come at…

Databases · Computer Science 2020-06-16 Subhadeep Sarkar , Tarikul Islam Papon , Dimitris Staratzis , Manos Athanassoulis

Distributed storage systems provide large-scale reliable data storage services by spreading redundancy across a large group of storage nodes. In such a large system, node failures take place on a regular basis. When a storage node breaks…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-03-17 Yan Wang , Xunrui Yin , Dongsheng Wei , Xin Wang , Yucheng He

We consider the problem of synchronizing data in distributed storage networks under an edit model that includes deletions and insertions. We present two modifications of MDS, regenerating and locally repairable codes that allow updates in…

Information Theory · Computer Science 2014-09-05 Salim El Rouayheb , Sreechakra Goparaju , Han Mao Kiah , Olgica Milenkovic

Reed-Solomon (RS) codes have been increasingly adopted by distributed storage systems in place of replication,because they provide the same level of availability with much lower storage overhead. However, a key drawback of those RS-coded…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-21 Tian Xie , Juntao Fang , Shenggang wan , Changsheng Xie , Xubin He

Samples from a high-dimensional AR[1] process are observed by a sender which can communicate only finitely many bits per unit time to a receiver. The receiver seeks to form an estimate of the process value at every time instant in…

Information Theory · Computer Science 2022-02-01 Rooji Jinan , Parimal Parag , Himanshu Tyagi

In large-scale LLM pre-training systems with 100k+ GPUs, failures become the norm rather than the exception, and restart costs can dominate wall-clock training time. However, existing fault-tolerance mechanisms are largely unprepared for…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-29 Jin Lee , Zhonghao Chen , Xuhang He , Robert Underwood , Bogdan Nicolae , Franck Cappello , Xiaoyi Lu , Sheng Di , Zheng Zhang

This paper proposes an algorithm to minimize weighted service latency for different classes of tenants (or service classes) in a data center network where erasure-coded files are stored on distributed disks/racks and access requests are…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-11-03 Yu Xiang , Vaneet Aggarwal , Yih-Farn R. Chen , Tian Lan

Prices of NAND flash memories are falling drastically due to market growth and fabrication process mastering while research efforts from a technological point of view in terms of endurance and density are very active. NAND flash memories…

Hardware Architecture · Computer Science 2012-09-17 Jalil Boukhobza , Pierre Olivier , Stéphane Rubini

We consider an energy harvesting transmitter sending status updates to a receiver over an erasure channel, where each status update is of length $k$ symbols. The energy arrivals and the channel erasures are independent and identically…

Information Theory · Computer Science 2018-02-02 Abdulrahman Baknina , Sennur Ulukus

We present ErasureHead, a new approach for distributed gradient descent (GD) that mitigates system delays by employing approximate gradient coding. Gradient coded distributed GD uses redundancy to exactly recover the gradient at each…

Machine Learning · Computer Science 2019-01-29 Hongyi Wang , Zachary Charles , Dimitris Papailiopoulos

In recent years, high interest in using Virtual Machines (VMs) in data centers and Cloud computing has significantly increased the demand for high-performance data storage systems. Recent studies suggest using SSDs as a caching layer for…

Hardware Architecture · Computer Science 2018-05-04 Saba Ahmadian , Onur Mutlu , Hossein Asadi

Large-scale storage cluster systems need to manage a vast amount of data locations. A naive data locations management maintains pairs of data ID and nodes storing the data in tables. However, it is not practical when the number of pairs is…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-07-05 Ken-ichiro Ishikawa

Eliminating duplicate data in primary storage of clouds increases the cost-efficiency of cloud service providers as well as reduces the cost of users for using cloud services. Existing primary deduplication techniques either use inline…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-04-18 Huijun Wu , Chen Wang , Yinjin Fu , Sherif Sakr , Liming Zhu , Kai Lu

We present CluStRE, a novel streaming graph clustering algorithm that balances computational efficiency with high-quality clustering using multi-stage refinement. Unlike traditional in-memory clustering approaches, CluStRE processes graphs…

Machine Learning · Computer Science 2025-02-12 Adil Chhabra , Shai Dorian Peretz , Christian Schulz

Semi-supervised learning (SSL) seeks to enhance task performance by training on both labeled and unlabeled data. Mainstream SSL image classification methods mostly optimize a loss that additively combines a supervised classification…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Zhe Huang , Xiaowei Yu , Dajiang Zhu , Michael C. Hughes
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