| 摘要 |
<p>In one embodiment, the social networking selects a display item to display to a viewing user based on information about the viewing user and a display sequence tree associated with an ad campaign. The display items include advertisements, sponsored stories, and content objects created by users. The information about the user includes the viewing user's interactions, the viewing user's demographic information, and the viewing user's inferred characteristics. A display sequence tree associated with an ad campaign is a hierarchical arrangement of nodes that correspond to display items and represent possible sequences of display items. An ad campaign includes at least one request for a display item.</p> |
