7. The method of claim 1 , further comprising: identifying a classification hierarchical relationship specifying a parent classification and a child classification; identifying one or more keywords associated with the parent classification; and identifying one or more keywords associated with the child classification, wherein identifying a candidate parent entity comprises identifying an entity of the entity set having a descriptor comprising at least one of the one or more keywords associated with the parent classification, and wherein identifying a candidate child entity set comprises identifying entities of the entity set having a descriptor comprising at least one of the one or more keywords associated with the child classification.
9. The method of claim 7 , wherein identifying one or more keywords associated with the child classification comprises: identifying a set of seed keywords associated with the child classification; identifying a seed entity set comprising entities having descriptors that comprise one or more of the seed keywords associated with the child classification; and assessing descriptors of the entities of the seed entity set to identify an expanded set of keywords, wherein the one or more keywords associated with the child classification comprise the seed keywords and the expanded set of keywords.