Similarity calculation device and similarity calculation system

Abstract

The similarity calculation device includes a synthesis unit that synthesizes a first and second information group to generate a synthesized information group, and a similarity calculation unit that calculates a similarity between a comparison source node and a comparison target node in the synthesized information group, the first and second information groups each including a node and attribute information indicating an attribute of the node, the synthesis unit synthesizes the attribute information in the first and second information groups by matching identical nodes in the first and second information groups, and the similarity calculation unit calculates the similarity by comparing the attribute information associated with the comparison source node and the attribute information associated with the comparison target node.

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