Cogito’s graph analytics provide tools to determine patterns of interaction between actors and groups in social networks and answer questions such as:

• What subgroups exist in the network?
• How do these subgroups interact with each other?
• What is the overall structure of the network?
• What are the roles (central/peripheral) of network members?

Cogito’s graph analytics includes the following key measures of network centrality:

Degree	A count of the number of arcs terminating at each node.
Closeness	The ratio of the number of nodes in the graph over the sum of the shortest paths between the given node and all other connected nodes.
Betweenness	The ratio, for each node, of the number paths between two other nodes that pass through the node over the number of paths between the two other nodes.
Bridging	The product of the betweenness centrality and the bridging coefficient of the node.

Key Benefits:

• Evaluate social networks for groups and roles
• See how individuals and groups are interrelated
• Quantify centrality factors
• Determine key players, spanners and central figures

Top Features:

• Calculate centrality on entire graphs or subgraphs
• Numerical scores for betweenness, degree, distance, bridging, and closeness

The table above shows the how efficient a graph database is when compared to a relational database for basic Centrality calculations.