15. The non-transitory machine-readable storage medium of claim 14 , wherein the instructions that cause the machine to generate the recommendation set include instructions that cause the machine to calculate a relevance score for each related entity in the sub-set of related entities, wherein the relevance score is a function of probability and velocity.
15. The non-transitory machine-readable storage medium of claim 14 , wherein the instructions that cause the machine to generate the recommendation set include instructions that cause the machine to calculate a relevance score for each related entity in the sub-set of related entities, wherein the relevance score is a function of probability and velocity. 16. The non-transitory machine-readable storage medium of claim 15 , wherein the instructions that cause the machine to calculate the relevance score include instructions that cause the machine to determine a category associated with the selected entity and filtering the sub-set of related entities in accordance with the category.