8. The method of claim 7 , the social network kernel further comprising a weight associated with each edge, the weight identifying a strength of the relationship between the two individuals.
8. The method of claim 7 , the social network kernel further comprising a weight associated with each edge, the weight identifying a strength of the relationship between the two individuals. 9. The method of claim 8 , the weight representing a number of content items in which the two individuals are represented together.