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When training a machine learning model, it is standard procedure for the researcher to have full knowledge of both the data and model. However, this engenders a lack of trust between data owners and data scientists. Data owners are…

Cryptography and Security · Computer Science 2020-09-24 Will Abramson , Adam James Hall , Pavlos Papadopoulos , Nikolaos Pitropakis , William J Buchanan

For AI technology to fulfill its full promises, we must have effective means to ensure Responsible AI behavior and curtail potential irresponsible use, e.g., in areas of privacy protection, human autonomy, robustness, and prevention of…

Computers and Society · Computer Science 2022-05-13 Wenjing Chu

Security requirements in distributed software systems are inherently dynamic. In the case of authorization policies, resources are meant to be accessed only by authorized parties, but the authorization to access a resource may be…

Logic in Computer Science · Computer Science 2016-02-12 Silvia Ghilezan , Svetlana Jakšić , Jovanka Pantović , Jorge A. Pérez , Hugo Torres Vieira

Decentralised workflow management systems are a new research area, where most work to-date has focused on the system's overall architecture. As little attention has been given to the security aspects in such systems, we follow a security…

Cryptography and Security · Computer Science 2010-06-09 Petteri Kaskenpalo

The rapid advancement of ML models in critical sectors such as healthcare, finance, and security has intensified the need for robust data security, model integrity, and reliable outputs. Large multimodal foundational models, while crucial…

Cryptography and Security · Computer Science 2024-12-13 Hongyang Zhang , Yue Zhao , Claudio Angione , Harry Yang , James Buban , Ahmad Farhan , Fielding Johnston , Patrick Colangelo

Decentralized optimization has become a standard paradigm for solving large-scale decision-making problems and training large machine learning models without centralizing data. However, this paradigm introduces new privacy and security…

Machine Learning · Computer Science 2024-08-19 Changxin Liu , Nicola Bastianello , Wei Huo , Yang Shi , Karl H. Johansson

Academic publishing, integral to knowledge dissemination and scientific advancement, increasingly faces threats from unethical practices such as unconsented authorship, gift authorship, author ambiguity, and undisclosed conflicts of…

Cryptography and Security · Computer Science 2025-08-05 Kamal Al-Sabahi , Yousuf Khamis Al Mabsali

This note and agenda serve as a cause for thought for scholars interested in researching Decentralized Autonomous Organizations (DAOs), addressing both the opportunities and challenges posed by this phenomenon. It covers key aspects of data…

Computers and Society · Computer Science 2023-12-29 Christian Ziegler , Quinn DuPont

In this tutorial, we present an authorization model for distributed systems that operate with limited internet connectivity. Reliable internet access remains a luxury for a majority of the world's population. Even for those who can afford…

Cryptography and Security · Computer Science 2016-12-06 Andres Erbsen , Asim Shankar , Ankur Taly

Controlled sharing is fundamental to distributed systems. We consider a capability-based distributed authorization system where a client receives capabilities (access tokens) from an authorization server to access the resources of resource…

Cryptography and Security · Computer Science 2022-11-10 Adrian Shuai Li , Reihaneh Safavi-Naini , Philip W. L. Fong

In this work, we leverage advances in decentralized identifiers and permissioned blockchains to build a flexible user authentication and authorization mechanism that offers enhanced privacy, achieves fast revocation, and supports…

Cryptography and Security · Computer Science 2019-11-14 Nikos Fotiou , Iakovos Pittaras , Vasilios A. Siris , George C. Polyzos

Decentralized learning is an efficient emerging paradigm for boosting the computing capability of multiple bounded computing agents. In the big data era, performing inference within the distributed and federated learning (DL and FL)…

Multiagent Systems · Computer Science 2022-05-11 Mohamed Ridha Znaidi , Gaurav Gupta , Paul Bogdan

Cooperative decentralized learning relies on direct information exchange between communicating agents, each with access to locally available datasets. The goal is to agree on model parameters that are optimal over all data. However, sharing…

Machine Learning · Computer Science 2024-10-28 Jasmine Bayrooti , Zhan Gao , Amanda Prorok

Decentralized systems are a subset of distributed systems where multiple authorities control different components and no authority is fully trusted by all. This implies that any component in a decentralized system is potentially…

Cryptography and Security · Computer Science 2022-01-17 Carmela Troncoso , Marios Isaakidis , George Danezis , Harry Halpin

Identity and trust in the modern Internet are centralized around an oligopoly of identity service providers consisting solely of major tech companies. The problem with centralizing trust has become evident in recent discoveries of mass…

Cryptography and Security · Computer Science 2018-09-11 Martin Schanzenbach , Christian Banse , Julian Schütte

A common privacy issue in traditional machine learning is that data needs to be disclosed for the training procedures. In situations with highly sensitive data such as healthcare records, accessing this information is challenging and often…

Cryptography and Security · Computer Science 2021-03-31 Pavlos Papadopoulos , Will Abramson , Adam J. Hall , Nikolaos Pitropakis , William J. Buchanan

In general, deep learning models use to make informed decisions immensely. Developed models are mainly based on centralized servers, which face several issues, including transparency, traceability, reliability, security, and privacy. In…

Cryptography and Security · Computer Science 2023-03-28 Asma Jodeiri Akbarfam , Sina Barazandeh , Hoda Maleki , Deepti Gupta

Authorization currently introduces partial centralization in otherwise distributed network architectures, such as ICN approaches. Analyzing existing work in (partially) distributed authentication and authorization, and rearranging proven…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-08-09 Jens Finkhäuser

Sharing of telecommunication network data, for example, even at high aggregation levels, is nowadays highly restricted due to privacy legislation and regulations and other important ethical concerns. It leads to scattering data across…

Machine Learning · Computer Science 2022-05-18 Paula Raissa Silva , João Vinagre , João Gama

Administering standardized examinations is a challenging task, especially for those universities for which colleges affiliated to it are geographically distributed over a wide area. Some of the challenges include maintaining integrity and…

Computers and Society · Computer Science 2021-04-09 Yogesh N Patil , Arvind W Kiwelekar , Laxman D Netak , Shankar B Deosarkar
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