Rakuten Group, Inc.

Hiroki Mihara

In a processing system, a first processing deviceobtains first characteristics information indicating a characteristics of users in a first environment, divides the users into first clusters according to the first characteristics information, and transmits, to a second processing device, belonging information indicating which of the first clusters each of the users belongs to. The second processing deviceobtains second characteristics information indicating characteristics of the users in a second environment, and divides the users into second clusters according to the belonging information and the second characteristics information. The present invention allows for dividing the users into clusters more accurately while keeping the first and second characteristics information separate, although the second processing deviceneed not use the first characteristics information collected in the first environment and the first processing deviceneed not use the second characteristics information collected in the second environment.

Processing system, processing device, processing method, program, and information storage medium

In a processing system, a first processing deviceobtains first characteristics information indicating characteristics of users in a first environment, divides the users into first clusters according to the first characteristics information, and transmits, to a second processing device, representation information representing characteristics of users belonging to each of the first clusters using a centroid vector based on the first characteristics information of the cluster. The second processing deviceobtains second characteristics information indicating characteristics of the users in a second environment, and divides the users into second clusters according to the representation information and the second characteristics information. The present invention allows for dividing the users into clusters more accurately, although the second processing deviceneed not use the first characteristics information and the first processing deviceneed not use the second characteristics information.

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Tokyo, Japan

Hiroki Mihara