12. A method comprising: retrieving one or more objects connected to a target object through a social networking system; determining a subject associated with one or more of the retrieved objects connected to the target object; retrieving interactions between the target object and one or more of the retrieved objects connected to the target object; calculating by a computer processor, a score for the target object based at least in part on the retrieved interactions between the target object and one or more of the retrieved objects, the score providing a measure of association between the target object and the subject associated with one or more of the retrieved objects connected to the target object; and storing information describing the measure of association between the target object and the subject.
12. A method comprising: retrieving one or more objects connected to a target object through a social networking system; determining a subject associated with one or more of the retrieved objects connected to the target object; retrieving interactions between the target object and one or more of the retrieved objects connected to the target object; calculating by a computer processor, a score for the target object based at least in part on the retrieved interactions between the target object and one or more of the retrieved objects, the score providing a measure of association between the target object and the subject associated with one or more of the retrieved objects connected to the target object; and storing information describing the measure of association between the target object and the subject. 13. The method of claim 12 , further comprising: performing an action associated with the target object based on the score.