Location-intention context for content delivery

Invitational content targeted to a particular behavior can be served to the user when the user is likely to reproduce a desired behavior. The user is classified into one or more spatial-temporal segments based on an analysis of the user's characteristics and the user's past behavior. When a request is made for an item of invitational content, a spatial-temporal segment is selected based on a substantial likelihood that the current context will lead to a repeat of the representative past behavior. An item of invitational content associated with the selected segment is then served to the user.