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Link prediction methods use patterns in known network data to infer which connections may be missing. Previous work has shown that continuous-time quantum walks can be used to represent path-based link prediction, which we further study…

Quantum Physics · Physics 2022-12-01 João P. Moutinho , Duarte Magano , Bruno Coutinho

The security of public key validation protocols for web-based applications has recently attracted attention because of weaknesses in the certificate authority model, and consequent attacks. Recent proposals using public logs have succeeded…

Cryptography and Security · Computer Science 2017-03-17 Jiangshan Yu , Vincent Cheval , Mark Ryan

Traditional distributed transaction processing (TP) systems, such as replicated databases, faced difficulties in getting wide adoption for scenarios of enterprise integration due to the level of mutual trust required. Ironically, public…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-08-29 Ghareeb Falazi , Vikas Khinchi , Uwe Breitenbücher , Frank Leymann

We study the problem of verifiable polynomial evaluation in the user-server and multi-party setups. We propose {INTERPOL}, an information-theoretically verifiable algorithm that allows a user to delegate the evaluation of a polynomial to a…

Cryptography and Security · Computer Science 2019-04-30 Saeid Sahraei , A. Salman Avestimehr

One of the risks involved in multi agent community is in the identification of trustworthy agent partners for transaction. In this paper we aim to describe a trust model for measuring trust in the interacting agents. The trust metric model…

Computers and Society · Computer Science 2013-05-15 Sanat Kumar Bista , Keshav P. Dahal , Peter I. Cowling , Bhadra Man Tuladhar

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

This chapter explores the symbiotic relationship between Artificial Intelligence (AI) and trust in networked systems, focusing on how these two elements reinforce each other in strategic cybersecurity contexts. AI's capabilities in data…

Artificial Intelligence · Computer Science 2024-11-21 Yunfei Ge , Quanyan Zhu

This paper explores recommender systems in social networks which leverage information such as item rating, intra-item similarities, and trust graph. We demonstrate that item-rating information is more influential than other information…

Information Retrieval · Computer Science 2025-02-25 Paras Stefanopoulos , Sourin Chatterjee , Ahad N. Zehmakan

Online social networks facilitate user engagement and information sharing but are also rife with misinformation and deception. Research on trust modeling in online social networks focuses on developing computational models or algorithms to…

Social and Information Networks · Computer Science 2026-03-13 Wenting Song , K. Suzanne Barber

Social trust prediction addresses the significant problem of exploring interactions among users in social networks. Naturally, this problem can be formulated in the matrix completion framework, with each entry indicating the trustness or…

Social and Information Networks · Computer Science 2015-04-27 Jing Wang , Jie Shen , Huan Xu

The Public Key Infrastructure(PKI) provides facilities for data encryption, digital signature and time stamping. It is a system where different authorities verify and authenticate the validity of each participant with the use of digital…

Cryptography and Security · Computer Science 2012-10-11 Balachandra Muniyal , K. V. Prema , Mamatha Balachandra

The problem of connectivity assessment in an asymmetric network represented by a weighted directed graph is investigated in this article. A power iteration algorithm in a centralized implementation is developed first to compute the…

Systems and Control · Electrical Eng. & Systems 2023-08-10 M. Mehdi Asadi , Mohammad Khosravi , Hesam Mosalli , Stephane Blouin , Amir G. Aghdam

This paper introduces a variant for the symmetric matrix-based key distribution in sensor network introduced by Du et al. Our slight modification shows that the usage of specific structures for the public matrix instead of fully random…

Cryptography and Security · Computer Science 2009-09-29 Abedelaziz Mohaisen

We propose a novel trust metric for social networks which is suitable for application in recommender systems. It is personalised and dynamic and allows to compute the indirect trust between two agents which are not neighbours based on the…

Computers and Society · Computer Science 2009-05-09 Frank E. Walter , Stefano Battiston , Frank Schweitzer

The random matrix theory is used to bridge the network structures and the dynamical processes defined on them. We propose a possible dynamical mechanism for the enhancement effect of network structures on synchronization processes, based…

Statistical Mechanics · Physics 2007-05-23 Huijie Yang , Fangcui Zhao , Binghong Wang

Trust is a fundamental concept in many real-world applications such as e-commerce and peer-to-peer networks. In these applications, users can generate local opinions about the counterparts based on direct experiences, and these opinions can…

Databases · Computer Science 2012-11-12 Yuan Yao , Hanghang Tong , Xifeng Yan , Feng Xu , Jian Lu

In this paper we investigate a new computing paradigm, called SocialCloud, in which computing nodes are governed by social ties driven from a bootstrapping trust-possessing social graph. We investigate how this paradigm differs from…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-12-13 Abedelaziz Mohaisen , Huy Tran , Abhishek Chandra , Yongdae Kim

Community structure exists in many real-world networks and has been reported being related to several functional properties of the networks. The conventional approach was partitioning nodes into communities, while some recent studies start…

Physics and Society · Physics 2011-08-15 Youngdo Kim , Hawoong Jeong

Many governmental bodies are adopting AI policies for decision-making. In particular, Reinforcement Learning has been used to design policies that citizens would be expected to follow if implemented. Much RL work assumes that citizens…

Machine Learning · Computer Science 2025-10-28 Naina Balepur , Xingrui Pei , Hari Sundaram

Blockchain is a promising technology for establishing trust in IoT networks, where network nodes do not necessarily trust each other. Cryptographic hash links and distributed consensus mechanisms ensure that the data stored on an immutable…

Cryptography and Security · Computer Science 2019-06-28 Volkan Dedeoglu , Raja Jurdak , Guntur D. Putra , Ali Dorri , Salil S. Kanhere