| 摘要 |
An online system maintains information describing user interactions with advertisements and other content. Additionally, the online system maintains various types of information identifying users and confidence values associated with each type of information identifying users that provide a measure of the likelihood of a type of information identifying a specific user. Example types of information identifying a user include an online system identifier, a client device identifier, and an application identifier. When the online system receives information indicating a user has performed a conversion, the online system retrieves interactions associated with at least one type of information identifying the user. An attribution model is applied to the retrieved interactions to determine contributions of various interactions to the conversion, accounting for the confidence values associated with types of information identifying the user associated with various interactions. |
