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In this work, we present our early stage results on a Conflicts Check Protocol (CCP) that enables preventing potential attacks on bitcoin system. Based on the observation and discovery of a common symptom that many attacks may generate, CCP…

Cryptography and Security · Computer Science 2018-02-28 Chen Yang , Haohong Wang

The importance of cloud computing has grown over the last years, which resulted in a significant increase of Data Center (DC) network requirements. Virtualisation is one of the key drivers of that transformation and enables a massive…

Cryptography and Security · Computer Science 2023-04-13 Igor Ivkić , Dominik Thiede , Nicholas Race , Matthew Broadbent , Antonios Gouglidis

In blockchain systems, especially cryptographic currencies such as Bitcoin, the double-spending and Byzantine-general-like problem are solved by reaching consensus protocols among all nodes. The state-of-the-art protocols include…

Cryptography and Security · Computer Science 2018-08-02 Jianwen Chen , Kai Duan , Rumin Zhang , Liaoyuan Zeng , Wenyi Wang

Self-supervised learning (SSL) has gained significant interest in recent years as a solution to address the challenges posed by sparse and noisy data in recommender systems. Despite the growing number of SSL algorithms designed to provide…

Information Retrieval · Computer Science 2024-01-31 Xubin Ren , Lianghao Xia , Yuhao Yang , Wei Wei , Tianle Wang , Xuheng Cai , Chao Huang

Blockchain is a novel technology that is rising a lot of interest in the industrial and re- search sectors because its properties of decentralisation, immutability and data integrity. Initially, the underlying consensus mechanism has been…

Cryptography and Security · Computer Science 2018-05-10 Stefano De Angelis

Formal verification of complex algorithms is challenging. Verifying their implementations goes beyond the state of the art of current automatic verification tools and usually involves intricate mathematical theorems. Certifying algorithms…

Logic in Computer Science · Computer Science 2013-02-01 Eyad Alkassar , Sascha Böhme , Kurt Mehlhorn , Christine Rizkallah

A major drawback in deploying central bank digital currencies (CDBC) is the offline puzzle, which requires that a CBDC must keep the provision given by cash, and, simultaneously, avoid double-spending, counterfeiting, and other issues. The…

Cryptography and Security · Computer Science 2023-09-26 Henrique de Carvalho Videira

CERBERUS is a synthetic benchmark designed to help train and evaluate AI models for detecting cracks and other defects in infrastructure. It includes a crack image generator and realistic 3D inspection scenarios built in Unity. The…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Justin Reinman , Sunwoong Choi

Cross-border data transfer is vital for the digital economy by enabling data flow across different countries or regions. However, ensuring compliance with diverse data protection regulations during the transfer introduces significant…

Cryptography and Security · Computer Science 2024-12-13 Zhixian Zhuang , Xiaodong Lee , Jiuqi Wei , Yufan Fu , Aiyao Zhang

The burgeoning RISC-V ecosystem necessitates efficient verification methodologies for complex processors. Traditional approaches often struggle to concurrently evaluate functional correctness and performance, or balance simulation speed…

Hardware Architecture · Computer Science 2025-05-16 Ruizhi Qiu , Yang Liu

The complexity of Machine Learning (ML) systems increases each year, with current implementations of large language models or text-to-image generators having billions of parameters and requiring billions of arithmetic operations. As these…

Machine Learning · Computer Science 2024-01-17 Pedro Reviriego , Ziheng Wang , Alvaro Alonso , Zhen Gao , Farzad Niknia , Shanshan Liu , Fabrizio Lombardi

Neural Control Barrier Functions (NCBFs) have shown significant promise in enforcing safety constraints on nonlinear autonomous systems. State-of-the-art exact approaches to verifying safety of NCBF-based controllers exploit the…

Systems and Control · Electrical Eng. & Systems 2024-10-29 Hongchao Zhang , Zhizhen Qin , Sicun Gao , Andrew Clark

Maximal Extractable Value, or MEV, remains a structural threat to blockchain fairness because a block producer can often observe pending transactions and unilaterally decide their ordering or inclusion. Existing mitigations hide transaction…

Cryptography and Security · Computer Science 2026-04-10 Jian Sheng Wang

The challenge of CPU evaluation lies in the fact that user-perceived performance metrics can only be measured on an independently running system consisting of the CPU and other indispensable components, and hence it is difficult to…

Performance · Computer Science 2025-07-16 Chenxi Wang , Lei Wang , Wanling Gao , Fanda Fan , Yuchen Su , Yutong Zhou , Yikang Yang , Jianfeng Zhan

As AI models grow more complex, explainability is essential for building trust, yet concept-based counterfactual methods still face a trade-off between expressivity and efficiency. Representing underlying concepts as atomic sets is fast but…

Artificial Intelligence · Computer Science 2026-05-22 Angeliki Dimitriou , Nikolaos Chaidos , Maria Lymperaiou , Giorgos Filandrianos , Giorgos Stamou

A critical yet frequently overlooked challenge in the field of deepfake detection is the lack of a standardized, unified, comprehensive benchmark. This issue leads to unfair performance comparisons and potentially misleading results.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Zhiyuan Yan , Yong Zhang , Xinhang Yuan , Siwei Lyu , Baoyuan Wu

Credit scoring is vital in the financial industry, assessing the risk of lending to credit card applicants. Traditional credit scoring methods face challenges with large datasets and data imbalance between creditworthy and non-creditworthy…

Computational Engineering, Finance, and Science · Computer Science 2024-09-26 Kejian Tong , Zonglin Han , Yanxin Shen , Yujian Long , Yijing Wei

Blockchain technology offers a promising foundation for modernizing E-Voting systems by enhancing transparency, decentralization, and security. Yet, real-world adoption remains limited due to persistent challenges such as scalability…

Cryptography and Security · Computer Science 2025-10-06 Kiana Kiashemshaki , Elvis Nnaemeka Chukwuani , Mohammad Jalili Torkamani , Negin Mahmoudi

Cloud computing has grown in importance in recent years which has led to a significant increase in Data Centre (DC) network requirements. A major driver of this change is virtualisation, which allows computing resources to be deployed on a…

Cryptography and Security · Computer Science 2024-08-22 Igor Ivkić , Dominik Thiede , Nicholas Race , Matthew Broadbent , Antonios Gouglidis

In this paper, we propose a blockchain-based computing verification protocol, called EntrapNet, for distributed shared computing networks, an emerging underlying network for many internet of things (IoT) applications. EntrapNet borrows the…

Cryptography and Security · Computer Science 2021-05-04 Chong Li , Lei Zhang , Serbiao Fang