Patent ID: 8380727

Claim:
An information processing device comprising: a memory storing a program; and a processor for executing the program to cause the information processing device to perform a method, the method comprising: obtaining information relating to data of content that a single user, requesting introduction of a user with similar preferences to oneself, has used; obtaining content meta information corresponding to content that said single user has used; generating a first user preference vector with each of said obtained content meta information as elements thereof; generating a second user preference vector wherein said generated first user preference vector is analyzed and the number of elements of said first user preference vector is compressed; identifying as a single introducing user a single user that should be introduced to said single using user and corresponding to a second user preference vector having a high similarity to the second user preference vector of the single using user; and causing overlapping display to said single using user of: a first polygon expressing only said single using user's preferences; and a second polygon expressing only said single introducing user's preferences.