| CPC H04L 67/535 (2022.05) [G06F 16/9577 (2019.01)] | 9 Claims |

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1. An information processing method realized using an operation information reception unit, an attribute value acquisition unit, and a site processing unit, comprising:
an operation information reception step in which the operation information reception unit receives one or more pieces of first operation information regarding a user on a first site;
an attribute value acquisition step in which the attribute value acquisition unit acquires a first attribute value of the user, using the one or more pieces of first operation information; and
a site processing step in which the site processing unit performs estimates a second attribute value of the user who has visited a second site from the first site, using the first attribute value of the user and learning information, and performs predetermined processing on the second site, using the estimated second attribute value,
wherein the learning information is acquired using a set of first attribute values and second attribute values of two or more users.
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