Fecha de publicación: 15/12/2022 Fuente: WIPO (eseential oils OR extracts) A name data association device according to one embodiment includes: a common data extraction unit that extracts, as common data, name data with the same representation between a first database (DB) and a second DB, the first DB holding a plurality of pieces of name data and adjacent information indicating adjacent relationships between the name data, the second DB holding the plurality of pieces of name data, adjacent information between the name data, and path identification information representing paths to which these name data belong; a path generation unit that extracts partial paths from a path represented by the path identification information held by the second DB, the partial paths having the common data as endpoints and having non-common data as a vertex between the endpoints, and generates, on the basis of the information held by the first DB, for each of the partial paths, a path having the same common data endpoints as the endpoints of the partial paths and a length equal to or larger than that of the partial paths; and an association unit that searches a combination of the vertexes on the partial paths and a vertex on the path for each of the partial paths to thereby associate the name data between the first DB and the second DB.