A Trust-Based Social Internet of Things Service Recommendation Method

Abstract

The invention discloses a trust-based social Internet of Things service recommendation method, which mainly consists of three layers, namely a social network layer, an Internet of Things device layer and a social Internet of Things service layer. First, the direct trust relationship value between users is calculated by using the method based on emotion and behavior fusion at the social network layer, and the joint trust value is calculated according to the direct trust value between users to form a trust relationship topology structure; then the small world model is adopted Mining the trust clustering of social users, constructing the trust circle of social network users based on trust relationship; at the same time, calculating the availability of each user's IoT device at the IoT device layer; finally, constructing a utility function according to the user trust circle and device availability , and according to the size of the utility function value, the device and its services that can meet the service required by the user are recommended to the user.

Description

technical field [0001] The present invention relates to the technical field of social networking information technology, in particular to a trust-based social networking service recommendation method. Background technique [0002] Social Internet of Things is a new network form that integrates IoT technology and social network technology from multiple angles and levels. It introduces the concept of social relationship between things and things and between things and people. It is an emerging field of current information technology development. The social Internet of Things can be abstracted as a computer network with a certain topology, in which nodes may be things or people, and link edges represent social relationships between things, things and people, and people. Social Internet of Things has become an important part of strategic emerging industries and new interconnection methods, representing the trend and trend of global information technology development. [0003] ...

AI Technical Summary

Problems solved by technology

Although some studies have introduced the concept of the social Internet of Things, they have only realized the recommendation of services such as functions and performances based on the similarity of needs of social network users.

[0005] However, in the social Internet of Things, terminal devices are easier to deploy and develop, developers are easier to access resources and services, and perception and control devices are easier to collect and analyze user data, resulting in malicious and untrusted nodes being able to easily join Network and establish a connection with the target node to obtain data

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