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Blockchain has attracted much attention from both academia and industry since emerging in 2008. Due to the inconvenience of the deployment of large-scale blockchains, blockchain simulators are used to facilitate blockchain design and…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-05-31 Xuyang Ma , Han Wu , Du Xu , Katinka Wolter

Pruning is critical for scaling large language models (LLMs). Global pruning achieves strong performance but requires $\mathcal{O}(N)$ memory, which is infeasible for billion-parameter models. Local pruning reduces GPU memory usage to that…

Machine Learning · Computer Science 2025-10-07 Xinyuan Song , Guangji Bai , Liang Zhao

Blockchain technologies are facing a scalability challenge, which must be overcome to guarantee a wider adoption of the technology. This scalability issue is due to the use of consensus algorithms to guarantee the total order of the chain…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-02-10 Margarita Capretto , Martín Ceresa , Antonio Fernández Anta , Antonio Russo , César Sánchez

This paper surveys innovative protocols that enhance the programming functionality of the Bitcoin blockchain, a key part of the "Bitcoin Ecosystem." Bitcoin utilizes the Unspent Transaction Output (UTXO) model and a stack-based script…

Cryptography and Security · Computer Science 2024-10-01 Guofu Liao , Taotao Wang , Qing Yang , Yihan Xia , Long Shi , Xiang Zhao , Xiaoxiao Wu , Shengli Zhang , Anthony Chan , Richard Yuen

Compressing Deep Neural Network (DNN) models to alleviate the storage and computation requirements is essential for practical applications, especially for resource limited devices. Although capable of reducing a reasonable amount of model…

Machine Learning · Computer Science 2021-06-17 Sheng Lin , Wei Jiang , Wei Wang , Kaidi Xu , Yanzhi Wang , Shan Liu , Songnan Li

Bitcoin provides freshness properties by forming a blockchain where each block is associated with its timestamp and the previous block. Due to these properties, the Bitcoin protocol is being used as a decentralized, trusted, and secure…

Cryptography and Security · Computer Science 2018-05-21 Pawel Szalachowski

Blockchain sharding is a promising approach to solving the dilemma between decentralisation and high performance (transaction throughput) for blockchain. The main challenge of Blockchain sharding systems is how to reach a decision on a…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-03-24 Yibin Xu , Yangyu Huang , Jianhua Shao , George Theodorakopoulos

A key challenge for Bitcoin cryptocurrency holders, such as startups using ICOs to raise funding, is managing their FX risk. Specifically, a misinformed decision to convert Bitcoin to fiat currency could, by itself, cost USD millions. In…

Risk Management · Quantitative Finance 2018-05-15 Cuneyt Akcora , Matthew Dixon , Yulia Gel , Murat Kantarcioglu

Bitcoin relies on a peer-to-peer overlay network to broadcast transactions and blocks. From the viewpoint of network measurement, we would like to observe this topology so we can characterize its performance, fairness and robustness.…

Cryptography and Security · Computer Science 2018-12-11 Sergi Delgado-Segura , Surya Bakshi , Cristina Pérez-Solà , James Litton , Andrew Pachulski , Andrew Miller , Bobby Bhattacharjee

This study proposes a novel solution that provides secure interoperability for blockchains, which improves the overall scalability of the whole blockchain network. In our solution, a cross-chain task will build a one-time cross-blockchain…

Networking and Internet Architecture · Computer Science 2022-01-11 Keyang Liu , Yukio Ohsawa

Recently, there has been a remarkable amount of research being done in both, the fields of Blockchain and Internet of Things (IoT). Blockchain technology synergises well with IoT, solving key problems such as privacy, concerns with…

Cryptography and Security · Computer Science 2022-05-04 Kinshuk Dua

Blockchain, as the backbone technology of the current popular Bitcoin digital currency, has become a promising decentralized data management framework. Although blockchain has been widely adopted in many applications, e.g., finance,…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-04-13 Zehui Xiong , Yang Zhang , Dusit Niyato , Ping Wang , Zhu Han

The rise of cryptocurrencies like Bitcoin, which enable transactions with a degree of pseudonymity, has led to a surge in various illicit activities, including ransomware payments and transactions on darknet markets. These illegal…

Cryptography and Security · Computer Science 2023-06-16 Poupak Azad , Baris Coskunuzer , Murat Kantarcioglu , Cuneyt Gurcan Akcora

Although blockchains have become widely popular for their use in cryptocurrencies, they are now becoming pervasive as more traditional applications adopt blockchain to ensure data security. Despite being a secured network, blockchains have…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-12-10 Faisal Haque Bappy , Tariqul Islam , Tarannum Shaila Zaman , Md Sajidul Islam Sajid , Mir Mehedi Ahsan Pritom

Blockchain technologies are facing a scalability challenge, which must be overcome to guarantee a wider adoption of the technology. This scalability issue is mostly caused by the use of consensus algorithms to guarantee the total order of…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-06-24 Margarita Capretto , Martín Ceresa , Antonio Fernández Anta , Antonio Russo , César Sánchez

While cryptocurrencies and blockchain applications continue to gain popularity, their energy cost is evidently becoming unsustainable. In most instances, the main cost comes from the required amount of energy for the Proof-of-Work, and this…

Cryptography and Security · Computer Science 2019-08-20 Philippe Jacquet , Bernard Mans

We introduce Blockene, a blockchain that reduces resource usage at member nodes by orders of magnitude, requiring only a smartphone to participate in block validation and consensus. Despite being lightweight, Blockene provides a high…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-10-15 Sambhav Satija , Apurv Mehra , Sudheesh Singanamalla , Karan Grover , Muthian Sivathanu , Nishanth Chandran , Divya Gupta , Satya Lokam

Convolutional neural networks (CNNs) suffer from rapidly increasing storage and computational costs as their depth grows, which severely hinders their deployment on resource-constrained edge devices. Pruning is a practical approach for…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Li Xu , Xianchao Xiu

We propose a bitcoin generalization as a solution to the problem of scalability. The block is redefined as a sequence of sub-blocks of increasing sizes that coexist as different levels of compromise between decentralization and transactions…

Cryptography and Security · Computer Science 2018-05-15 Santi J. Vives

Convolutional Neural Networks (CNN) are widely used in many computer vision tasks. Yet, their increasing size and complexity pose significant challenges for efficient deployment on resource-constrained platforms. Hence, network pruning has…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Maxim Henry , Adrien Deliège , Anthony Cioppa , Marc Van Droogenbroeck