Results 51 to 60 of about 30,192 (248)

Steganographic Analysis of Blockchains

Sensors, 2021
Steganography is one of the ways to hide data between parties. Its use can be worrisome, e.g., to hide illegal communications. Researchers found that public blockchains can be an attractive place to hide communications; however, there is not much ...
Alexandre Augusto Giron, Jean Everson Martina, Ricardo Custódio   +2 more
doaj   +1 more source

Can the major cryptocurrencies be used as a portfolio diversifier?: Analysis of the relationship between Bitcoin, Ethereum, and global financial asset classes

Ekonomski Vjesnik
Purpose: It can be stated that in today’s competitive conditions, where portfolio management is very important, it has become necessary to examine the relationship between global financial assets and major cryptocurrencies, such as Bitcoin and Ethereum ...
Kübra Saka Ilgin
doaj   +1 more source

State Channel as a Service Based on a Distributed and Decentralized Web

IEEE Access, 2020
Currently, developers and researchers are dedicated to finding better ways to achieve greater scalability of various blockchain platforms. Focused on the Ethereum blockchain platform, the state channels are currently the only maturely researched and ...
Blaz Podgorelec, Marjan Herieko, Muhamed Turkanovic   +2 more
doaj   +1 more source

Axiomatization of Blockchain Theory

Mathematics, 2023
The increasing use of artificial intelligence algorithms, smart contracts, the internet of things, cryptocurrencies, and digital money highlights the need for secure and sustainable decentralized solutions.
Sergey Goncharov, Andrey Nechesov
doaj   +1 more source

Fairness in Federated Learning: Trends, Challenges, and Opportunities

Advanced Intelligent Systems, EarlyView.
This survey delves into the intricate issues pertinent to fairness in federated learning , where various biasing factors can skew model performance. By systematically analyzing fairness‐aware strategies, evaluation metrics, and future directions, this work identifies pivotal research gaps in existing approaches and sheds light on both challenges and ...
Noorain Mukhtiar, Adnan Mahmood, Quan Z. Sheng   +2 more
wiley   +1 more source

PRICHAIN: A Partially Decentralized Implementation of UbiPri Middleware Using Blockchain

Sensors, 2019
With the popularization of the Internet-of-Things, various applications have emerged to make life easier. These applications generate a large amount of user data.
Iago Sestrem Ochôa, Luis Augusto Silva, Gabriel de Mello, Bruno Alves da Silva, Juan Francisco de Paz, Gabriel Villarrubia González, Nuno M. Garcia, Valderi Reis Quietinho Leithardt   +7 more
doaj   +1 more source

Fundraising Campaigns in a Digital Economy: Lessons from a Swiss Synthetic Diamond Venture's Initial Coin Offering (ICO)

Technology Innovation Management Review, 2020
As economies digitalize and many local businesses gradually internationalize, crowdfunding platforms have offered a new way for ventures to raise capital.
Jahja Rrustemi, Nils S. Tuchschmid
doaj   +1 more source

Multi‐Distance Spatial‐Temporal Graph Neural Network for Anomaly Detection in Blockchain Transactions

Advanced Intelligent Systems, EarlyView.
This paper presents a novel Multi‐Distance Spatial‐Temporal Graph Neural Network for detecting anomalies in blockchain transactions. The model combines multi‐distance graph convolutions with adaptive temporal modeling to capture complex patterns in anonymized cryptocurrency networks.
Shiyang Chen, Yang Liu, Qun Zhang, Zhouhang Shao, Zewei Wang   +4 more
wiley   +1 more source

Modelo de negócio para saúde colaborativa usando smart contracts: caso TokenHealth

Revista Brasileira de Computação Aplicada, 2020
Após a introdução do Bitcoin, a tecnologia de \textit{blockchain} evoluiu como uma solução para fornecer integridade, não repúdio e disponibilidade de dados para diferentes sistemas.
Vinicius Branco, Bruno Lippert, Roben Castagna Lunardi, Henry C. Nunes, Charles V. Neu, Avelino F. Zorzo, Diego Pirolla, Reider A. Bernucio, Sérgio Spacov   +8 more
doaj   +1 more source

Abnormal Transactions Detection in the Ethereum Network Using Semi-Supervised Generative Adversarial Networks

IEEE Access, 2023
Numerous abnormal transactions have been exposed as a result of targeted attacks on Ethereum, such as the Ethereum Decentralized Autonomous Organization attack.
Yousef K. Sanjalawe, Salam R. Al-E'mari
doaj   +1 more source