14. The computer-implemented method of claim 13 , wherein the result set comprises at least a first segment and a second segment, the computer-implemented method further comprising: determining a first ranking associated with at least the first segment; and transmitting the first ranking, wherein the first ranking affects the presentation of the first segment relative to the second segment in the user interface.
19. The computer-implemented method of claim 14 , wherein the input further comprises a second concept, and wherein the first ranking is further based at least on a relationship R, wherein relationship R is defined substantially as: 
 ∝*geometric mean( P )*quantity of P −(1−∝)*sum(0), where ∝ is a constant, P comprises a first density of at least the first concept and the second concept in the first segment, and O comprises a second density of one or more other concepts in the first segment, wherein the one or more other concepts do not include at least the first concept and the second concept.