Shujiang Xu^1,2,*, Ziye Wang^1,2, Lianhai Wang^1,2, Miodrag J. Mihaljević^1,2,3, Shuhui Zhang^1,2, Wei Shao^1,2, Qizheng Wang^1,2

CMES-Computer Modeling in Engineering & Sciences, Vol.139, No.3, pp. 3311-3327, 2024, DOI:10.32604/cmes.2023.046164

Abstract Blockchain technology, with its attributes of decentralization, immutability, and traceability, has emerged as a powerful catalyst for enhancing traditional industries in terms of optimizing business processes. However, transaction performance and scalability has become the main challenges hindering the widespread adoption of blockchain. Due to its inability to meet the demands of high-frequency trading, blockchain cannot be adopted in many scenarios. To improve the transaction capacity, researchers have proposed some on-chain scaling technologies, including lightning networks, directed acyclic graph technology, state channels, and sharding mechanisms, in which sharding emerges as a potential scaling technology. Nevertheless, excessive cross-shard transactions and uneven shard… More > Graphic Abstract

Zoran Gligorić, Miloš Gligorić^*, Igor Miljanović, Suzana Lutovac, Aleksandar Milutinović

CMES-Computer Modeling in Engineering & Sciences, Vol.136, No.1, pp. 955-979, 2023, DOI:10.32604/cmes.2023.025021

Abstract Information about the relative importance of each criterion or the weights of criteria can have a significant influence on the ultimate rank of alternatives. Accordingly, assessing the weights of criteria is a very important task in solving multi-criteria decision-making problems. Three methods are commonly used for assessing the weights of criteria: objective, subjective, and integrated methods. In this study, an objective approach is proposed to assess the weights of criteria, called SPC method (Symmetry Point of Criterion). This point enriches the criterion so that it is balanced and easy to implement in the process of the evaluation of its influence… More > Graphic Abstract