On Trust Recommendations in the Social Internet of Things – A Survey

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Becherer, M
Hussain, OK
Zhang, Y
Den Hartog, F
Chang, E
Griffith University Author(s)
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2024
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Abstract

The novel paradigm Social Internet of Things (SIoT) improves the network navigability, identifies suitable service providers, and addresses scalability concerns. Ensuring trustworthy collaborations among devices is a key aspect in SIoT and can be realized through trust recommendations. However, the outcome of trust recommendations depends on multiple factors related to the context-dependent nature of SIoT and practical constraints brought by the devices and networks embedded in the SIoT. While the existing literature has proposed numerous trust recommendation models to assess the trustworthiness of devices in various scenarios, researchers have not sufficiently examined the required features for trust recommendations in the SIoT. Consequently, trust recommendation models may inaccurately assess the true risk of device interactions. In this literature survey, we investigate the context-dependent features and recommendation methods used for the SIoT using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology. We propose a novel taxonomy to categorize trust recommendation models according to their input features and design. Our findings reveal limited attention is given to the context-dependent features, constraints of the information environment, and limited inference capabilities that impede more precise trust recommendations. Finally, we present the research gaps and outline future directions to enable trustworthy inter-domain operations within the SIoT.

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ACM Computing Surveys

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56

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6

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Becherer, M; Hussain, OK; Zhang, Y; Den Hartog, F; Chang, E, On Trust Recommendations in the Social Internet of Things - A Survey, ACM Computing Surveys, 2024, 56 (6), pp. 160

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