Methods and equipment to compensate for misjudgment of the attribution of impression data and / or uncovered by the database owner

摘要

PROBLEM TO BE SOLVED: To provide a method, an apparatus and a storage medium for compensating for erroneous determination of the attribution destination of impression data and uncovered by a database owner. A method in a system 100 that collects user information from distributed database holders comprises the step of acquiring the number of media impressions generated by a first type of computing device. The first part of the media impression corresponds to the person whose demographic information can be recognized by the database owner, and the second part corresponds to the person whose database owner cannot obtain the demographic information. handle. The method is further based on a first probability that the media corresponding to the media impression will be accessed by the first type of computing device and a second probability that the media will be accessed by the second type of device. Includes the step of seeking demographic information about the second part of the media impression. [Selection diagram] Fig. 1