Hitachi, Ltd.

Amit Kumar

Hideya Yoshiuchi

A graph search device includes: an existing information database storing existing information that includes a set of existing process graphs and a set of existing process tables; a query data management unit that acquires query data that includes a query graph and a query table; a structure comparison unit that determines, as a first search candidate, an existing process graph satisfying a predetermined structural similarity threshold value with respect to the query graph from among the set of existing process graphs; a content comparison unit that determines, as a second search candidate, an existing process graph associated with an existing process table satisfying a predetermined content similarity threshold value for the query table, from among the set of existing process tables; and a results management unit that determines search results data for the query data among the first search candidate and the second search candidate.

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Tokyo, Japan

Amit Kumar