RTBAC: A Risk-Aware Topic-Based Access Control Model for Text Data with Paragraph-Level Authorization

<div>Performance of RTBAC (ICD-10 dataset). (a) Reduced access abilities compared with RCBAC. (b) Magnification of access abilities. (c) Execution time of different models. (d) Execution time of different topics.</div>

Security and Communication Networks

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Figure 8

Figure 8: RTBAC: A Risk-Aware Topic-Based Access Control Model for Text Data with Paragraph-Level Authorization 