Research Article
Image-Based Insider Threat Detection via Geometric Transformation
Table 2
Feature granularity detail (Sc: based on r4.2).
| Level | Notation | Meaning | Feature dimension |
| Week | | User behavior data aggregated by week | 40 | Day | xd | User behavior data aggregated by day | 28 | Session | xs | User session data, from logon to logoff | 16 |
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