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Keywords co-occurrence network
Keywords co-occurrence network is illustrated in three clusters. A keyword co-occurrence network is about identifying the appearance of the most frequently used keywords in a document such as a research paper, an article, a book, etc. In other words, it is about checking the number of times the keywords appear in a document during bibliometric analysis. In the context of this review study, a maximum of 50 keywords were extracted from bibliometrix, with 3 as the minimum number of occurrences. Therefore, in this review study, the keywords were separated into 3 clusters and these 3 clusters were further analysed by means of the strength association method.
Cluster 1 (red) has the most keywords related to IoT device security (e.g., authentication, blockchain, network security, public key cryptography), whereas Cluster 2 (blue) has words related to IoT and Data security (Internet of Things, network security, cyber-attacks, cybersecurity, security, security protocols), and Cluster 3 (purple) has keywords related to cyber-attacks (denial-of-service-attack, malware, distributed denial of service). The most common keywords are the internet of things, network security, and cyber-attacks.
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IEEE/ICACT20230185 Slide.15
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