Summary of SNA-based node-selection logics and mapping to fortification objectives
| Node-selection logic | Interpretation | Fortification objective |
|---|---|---|
| Node degree | Quantifies direct links; more links = more immediate connectivity | Maintain operational continuity + prevent disruption spread via connected/important node(s) |
| Degree centrality | Quantifies node's connections relative to whole network | Maintain operational continuity + prevent disruption spread via relatively connected/important node(s) |
| Closeness centrality | Quantifies how quickly a node can reach all others | Maintain operational continuity + prevent disruption spread via gateway node(s) |
| Betweenness centrality | Quantifies how often a node is in the shortest path between other nodes | Maintain operational continuity + prevent disruption spread via intermediary/bridging node(s) |
| Page rank | Quantifies a node's influence by weighting incoming links by the influence of their sources | Maintain operational continuity + prevent disruption spread at influential hub node(s) |
| Node-selection logic | Interpretation | Fortification objective |
|---|---|---|
| Node degree | Quantifies direct links; more links = more immediate connectivity | Maintain operational continuity + prevent disruption spread via connected/important node(s) |
| Degree centrality | Quantifies node's connections relative to whole network | Maintain operational continuity + prevent disruption spread via relatively connected/important node(s) |
| Closeness centrality | Quantifies how quickly a node can reach all others | Maintain operational continuity + prevent disruption spread via gateway node(s) |
| Betweenness centrality | Quantifies how often a node is in the shortest path between other nodes | Maintain operational continuity + prevent disruption spread via intermediary/bridging node(s) |
| Page rank | Quantifies a node's influence by weighting incoming links by the influence of their sources | Maintain operational continuity + prevent disruption spread at influential hub node(s) |
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