Adamic-Adar Index

Similarity measures are used to determine how many features two entities have in common.

See Resource Allocation Index. The Adamic-Adar Index analytic calculates the fraction of a "resource" that a node can send to another through their common neighbours. It is a variation of the Resource Allocation Index in that it is calculated by summing 1 divided by the log of the degree of each common neighbour node. The Soundarajan-Hopcroft Community Adamic-Adar Index parameter will only score pairs of nodes that are both selected (that is, sharing resources within the same community).

Parameters

• Transaction Types - Calculate on only the subgraph of transactions of these types
• Include Incoming - Include incoming connections
• Include Outgoing - Include outgoing connections
• Include Undirected - Treat undirected connections as bidirectional connections
• Minimum Common Features - Only calculate similarity between nodes that share at least this many features
• Selected Only - Calculate using only selected graph elements
• Community Adamic-Adar Index Soundarajan-Hopcroft Score - Only calculates score when both nodes are selected