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Q&A websites rely on user-generated responses, with incentives such as reputation scores or monetary rewards often offered. While some users may find it intrinsically rewarding to assist others, studies indicate that payment can improve the…

Computers and Society · Computer Science 2024-12-30 Ellis Solaiman , Jorge Robins

Agent mediated e-commerce involves buying and selling on Internet through software agents. The success of an agent mediated e-commerce system lies in the underlying reputation management system which is used to improve the quality of…

Multiagent Systems · Computer Science 2013-04-01 Vibha Gaur , Neeraj Kumar Sharma , Punam Bedi

The spread of online reviews, ratings and opinions and its growing influence on people's behavior and decisions boosted the interest to extract meaningful information from this data deluge. Hence, crowdsourced ratings of products and…

Information Retrieval · Computer Science 2017-05-03 João Saúde , Guilherme Ramos , Carlos Caleiro , Soummya Kar

Blockchain technology has been envisaged to commence an era of decentralised applications and services (DApps) without the need for a trusted intermediary. Such DApps open a marketplace in which services are delivered to end-users by…

Cryptography and Security · Computer Science 2021-01-27 Nguyen Truong , Gyu Myoung Lee , Kai Sun , Florian Guitton , Yike Guo

5G networks intend to cover user demands through multi-party collaborations in a secure and trustworthy manner. To this end, marketplaces play a pivotal role as enablers for network service consumers and infrastructure providers to offer,…

Cryptography and Security · Computer Science 2022-10-24 José María Jorquera Valero , Manuel Gil Pérez , Gregorio Martínez Pérez

Consumers frequently interact with reputation systems to rate products, services, and deliveries. While past research extensively studied different conceptual approaches to realize such systems securely and privacy-preservingly, these…

Cryptography and Security · Computer Science 2023-11-03 Lennart Bader , Jan Pennekamp , Emildeon Thevaraj , Maria Spiß , Salil S. Kanhere , Klaus Wehrle

Blockchains enables tamper-proof, ordered logging for transactional data in a decentralized manner over open-access, overlay peer-to-peer networks. In this paper, we propose a decentralized framework of proactive caching in a hierarchical…

Networking and Internet Architecture · Computer Science 2018-01-24 Wenbo Wang , Dusit Niyato , Ping Wang , Amir Leshem

In this paper, we develop BlockMarkchain, as a secure data market place, where individual data sellers can exchange certified data with buyers, in a secure environment, without any mutual trust among the parties, and without trusting on a…

Cryptography and Security · Computer Science 2020-03-26 Hamidreza Ehteram , Mohammad Taha Toghani , Mohammad Ali Maddah-Ali

Blockchains have recently gained popularity thanks to their ability to record "digital truth". They are designed to keep persistence, security, and avoid attacks which is useful for many applications. However, they are still problematic in…

Cryptography and Security · Computer Science 2019-01-14 David Amar , Lior Zilpa

Blockchain has recently been able to draw wider attention throughout the research community. Since its emergence, the world has seen the mind-blowing expansion of this new technology, which was initially developed as a pawn of digital…

Cryptography and Security · Computer Science 2022-05-03 Ziaur Rahman , Xun Yi , Sk. Tanzir Mehedi , Rafiqul Islam , Andrei Kelarev

Private blockchain networks are used by enterprises to manage decentralized processes without trusted mediators and without exposing their assets publicly on an open network like Ethereum. Yet external parties that cannot join such networks…

Cryptography and Security · Computer Science 2021-01-26 Dushyant Behl , Palanivel Kodeswaran , Venkatraman Ramakrishna , Sayandeep Sen , Dhinakaran Vinayagamurthy

The primary purpose of this paper is to provide a design of a blockchain-based system, which produces a verifiable record of achievements. Such a system has a wide range of potential benefits for students, employers and higher education…

Computers and Society · Computer Science 2020-07-07 Bakri Awaji , Ellis Solaiman , Lindsay Marshall

Current blockchain-based reputation solutions for crowdsourcing fail to tackle the challenge of ensuring both efficiency and privacy without compromising the scalability of the blockchain. Developing an effective, transparent, and…

Cryptography and Security · Computer Science 2024-07-04 Ahmed Mounsf Rafik Bendada , Mouhamed Amine Bouchiha , Mourad Rabah , Yacine Ghamri-Doudane

Reputation mechanisms offer an effective alternative to verification authorities for building trust in electronic markets with moral hazard. Future clients guide their business decisions by considering the feedback from past transactions;…

Artificial Intelligence · Computer Science 2011-11-02 B. Faltings , R. Jurca

Nowadays, federated recommendation technology is rapidly evolving to help multiple organisations share data and train models while meeting user privacy, data security and government regulatory requirements. However, federated recommendation…

Information Retrieval · Computer Science 2025-11-11 Jianhai Chen , Yanlin Wu , Dazhong Rong , Guoyao Yu , Lingqi Jiang , Zhenguang Liu , Peng Zhou , Rui Shen

Analyzing social media trends can create a win-win situation for both creators and consumers. Creators can receive fair compensation, while consumers gain access to engaging, relevant, and personalized content. This paper proposes a new…

Social and Information Networks · Computer Science 2024-06-27 Abhishek Saxena , Anton Kolonin

Skill verification is a central problem in workforce hiring. Companies and academia often face the difficulty of ascertaining the skills of an applicant since the certifications of the skills claimed by a candidate are generally not…

Cryptography and Security · Computer Science 2020-03-26 Jay Gupta , Swaprava Nath

Personal IoT data is a new economic asset that individuals can trade to generate revenue on the emerging data marketplaces. Typically, marketplaces are centralized systems that raise concerns of privacy, single point of failure, little…

Cryptography and Security · Computer Science 2020-09-15 Pooja Gupta , Volkan Dedeoglu , Kamran Najeebullah , Salil S. Kanhere , Raja Jurdak

Blockchain technology has advanced rapidly in recent years and is now widely used in a variety of fields. Blockchain appears to be one of the best solutions for managing massive heterogeneous devices while achieving advanced data security…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-05 Xu Yuan , Fang Luo , Muhammad Zeeshan Haider , Zhikui Chen , Yucheng Li

Large Language Models (LLMs) have witnessed rapid growth in emerging challenges and capabilities of language understanding, generation, and reasoning. Despite their remarkable performance in natural language processing-based applications,…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-05-06 Mouhamed Amine Bouchiha , Quentin Telnoff , Souhail Bakkali , Ronan Champagnat , Mourad Rabah , Mickaël Coustaty , Yacine Ghamri-Doudane