14. A non-transitory machine-readable storage medium comprising instructions that, when executed by one or more processors of a machine, cause the machine to perform operations comprising: accessing textual submissions contributed by members of a social network managed by a social network system, each of the textual submissions referencing a common entity described by an entity profile stored by the social network system; a subset of the accessed textual submissions each including a common token that is absent from the entity profile; generating a first probability that the common token occurs within the accessed textual submissions; accessing a second probability that the common token occurs within a superset of textual submissions that includes the accessed textual submissions; determining that the common token is descriptive of the common entity based on a statistical divergence between the first and second probabilities, the statistical divergence indicating that the common token is overrepresented among other tokens common to the accessed textual submissions; and generating a supplemental profile that describes the common entity and includes the overrepresented common token.
14. A non-transitory machine-readable storage medium comprising instructions that, when executed by one or more processors of a machine, cause the machine to perform operations comprising: accessing textual submissions contributed by members of a social network managed by a social network system, each of the textual submissions referencing a common entity described by an entity profile stored by the social network system; a subset of the accessed textual submissions each including a common token that is absent from the entity profile; generating a first probability that the common token occurs within the accessed textual submissions; accessing a second probability that the common token occurs within a superset of textual submissions that includes the accessed textual submissions; determining that the common token is descriptive of the common entity based on a statistical divergence between the first and second probabilities, the statistical divergence indicating that the common token is overrepresented among other tokens common to the accessed textual submissions; and generating a supplemental profile that describes the common entity and includes the overrepresented common token. 16. The non-transitory machine-readable storage medium of claim 14 , wherein the operations further comprise: ranking a search result that references the common entity, the ranking of the search result being based on the generated supplemental profile that describes the common entity and includes the overrepresented common token.