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A burst buffer is a common method to bridge the performance gap between the I/O needs of modern supercomputing applications and the performance of the shared file system on large-scale supercomputers. However, existing I/O sharing methods…

分布式、并行与集群计算 · 计算机科学 2023-06-21 Ed Karrels , Lei Huang , Yuhong Kan , Ishank Arora , Yinzhi Wang , Daniel S. Katz , William D. Gropp , Zhao Zhang

In an age where sustainability is of paramount importance, the significance of both high-performance computing and intelligent algorithms cannot be understated. Yet, these domains often demand hefty computational power, translating to…

分布式、并行与集群计算 · 计算机科学 2025-12-01 Murat Yaslioglu

Fault tolerance is critical for distributed stream processing systems, yet achieving error-free fault tolerance often incurs substantial performance overhead. We present AF-Stream, a distributed stream processing system that addresses the…

分布式、并行与集群计算 · 计算机科学 2019-08-13 Zhinan Cheng , Qun Huang , Patrick P. C. Lee

In the given technology-driven era, smart cities are the next frontier of technology, aiming at improving the quality of people's lives. Many research works focus on future smart cities with a holistic approach towards smart city…

密码学与安全 · 计算机科学 2021-07-22 S. Valli Sanghami , John J. Lee , Qin Hu

Due to its security, transparency, and flexibility in verifying virtual assets, blockchain has been identified as one of the key technologies for Metaverse. Unfortunately, blockchain-based Metaverse faces serious challenges such as massive…

密码学与安全 · 计算机科学 2023-05-02 Cong T. Nguyen , Dinh Thai Hoang , Diep N. Nguyen , Yong Xiao , Dusit Niyato , Eryk Dutkiewicz

Blockchains such as Bitcoin and Ethereum execute payment transactions securely, but their performance is limited by the need for global consensus. Payment networks overcome this limitation through off-chain transactions. Instead of writing…

密码学与安全 · 计算机科学 2019-10-29 Joshua Lind , Oded Naor , Ittay Eyal , Florian Kelbert , Peter Pietzuch , Emin Gun Sirer

Off-grid networks are recently emerging as a solution to connect the unconnected or provide alternative services to networks of possibly untrusted participants. The systems currently used, however, exhibit limitations due to their…

分布式、并行与集群计算 · 计算机科学 2020-07-09 Harris Niavis , Nikolaos Papadis , Leandros Tassiulas

Federated learning (FL) enables collaborative model training across distributed clients while preserving data locality. Although FedAvg pioneered synchronous rounds for global model averaging, slower devices can delay collective progress.…

机器学习 · 计算机科学 2025-05-09 Sanghyeon Park , Soo-Mook Moon

Blockchain protocols are inherently limited in transaction throughput and latency. Recent efforts to address performance and scale blockchains have focused on off-chain payment channels. While such channels can achieve low latency and high…

密码学与安全 · 计算机科学 2017-03-09 Joshua Lind , Ittay Eyal , Peter Pietzuch , Emin Gün Sirer

This paper proposes Federated Learning (FL) based smart healthcare system where Medical Centers (MCs) train the local model using the data collected from patients and send the model weights to the miners in a blockchain-based robust…

网络与互联网体系结构 · 计算机科学 2022-07-28 Moirangthem Biken Singh , Ajay Pratap

Bitcoin's enormous success has inspired the development of alternative blockchains, such as consortium chains. Several cross-chain protocols have been proposed as ways of connecting these universes of individual blockchains in a distributed…

分布式、并行与集群计算 · 计算机科学 2018-10-25 Hiroki Watanabe , Shigenori Ohashi , Shigeru Fujimura , Atsushi Nakadaira , Kota Hidaka , Jay Kishigami

In this paper we present an open source, fully asynchronous, leaderless algorithm for reaching consensus in the presence of Byzantine faults in an asynchronous network. We prove the algorithm's correctness provided that less than a third of…

密码学与安全 · 计算机科学 2019-07-29 Pierre Chevalier , Bartlomiej Kaminski , Fraser Hutchison , Qi Ma , Spandan Sharma , Andreas Fackler , William J Buchanan

Partitioning the vertices of a (hyper)graph into k roughly balanced blocks such that few (hyper)edges run between blocks is a key problem for large-scale distributed processing. A current trend for partitioning huge (hyper)graphs using low…

数据结构与算法 · 计算机科学 2023-02-14 Kamal Eyubov , Marcelo Fonseca Faraj , Christian Schulz

The maturing of blockchain technology leads to heterogeneity, where multiple solutions specialize in a particular use case. While the development of different blockchain networks shows great potential for blockchains, the isolated networks…

分布式、并行与集群计算 · 计算机科学 2021-02-01 Sara Ghaemi , Sara Rouhani , Rafael Belchior , Rui S. Cruz , Hamzeh Khazaei , Petr Musilek

We propose LazyLedger, a design for distributed ledgers where the blockchain is optimised for solely ordering and guaranteeing the availability of transaction data. Responsibility for executing and validating transactions is shifted to only…

密码学与安全 · 计算机科学 2019-06-11 Mustafa Al-Bassam

Since the beginning of this decade, several incidents report that false data injection attacks targeting intelligent connected vehicles cause huge industrial damage and loss of lives. Data Theft, Flooding, Fuzzing, Hijacking, Malware…

密码学与安全 · 计算机科学 2023-08-21 Ziaur Rahman , Xun Yi , Ibrahim Khalil , Adnan Anwar , Shantanu Pal

As edge computing gains prominence in Internet of Things (IoTs), smart cities, and autonomous systems, the demand for real-time machine intelligence with low latency and model reliability continues to grow. Federated Learning (FL) addresses…

网络与互联网体系结构 · 计算机科学 2025-04-01 Farhana Javed , Engin Zeydan , Josep Mangues-Bafalluy , Kapal Dev , Luis Blanco

With the large increase in the adoption of blockchain technologies, their underlying peer-to-peer networks must also scale with the demand. In this context, previous works highlighted the importance of ensuring efficient and resilient…

网络与互联网体系结构 · 计算机科学 2025-11-10 Lucian Trestioreanu , Flaviene Scheidt , Wazen Shbair , Jerome Francois , Damien Magoni , Radu State

We present an example where a distributed coordinated protocol supported by a blockchain-enabled monetary mechanism leads to achieving optimal information theoretic degrees of freedom gains. The considered setting is that of a linear…

信息论 · 计算机科学 2018-08-07 Aly El Gamal , Hesham El Gamal

Federated Learning (FL) enables collaborative model training without sharing raw data, preserving privacy while harnessing distributed datasets. However, traditional FL systems often rely on centralized aggregating mechanisms, introducing…

机器学习 · 计算机科学 2025-02-21 Bijun Wu , Oshani Seneviratne
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