Patent attributes
Included are a vector estimation means that estimates, in response to receiving input of a plurality of pieces of relational data each including a plurality of objects and a relationship between the objects, for each piece of relational data, a latent vector for characterizing a structure of the relational data by using the objects and the relationship included in the relational data; and a matching means that matches, for each set of first relational data and second relational data different from each other of the received pieces of relational data, a first object and a second object by using a first latent vector corresponding to the first object included in the first relational data and a second latent vector corresponding to the second object included in the second relational data. The vector estimation means estimates, when the relationship indicates a close relationship between a plurality of objects to each other, latent vectors corresponding to the objects such that the latent vectors corresponding to the respective objects have a close relationship to each other.
