17. The computer-implemented method of claim 14 , wherein determining the first ranking associated with at least the first segment comprises: determining a quantity of temporal words within the first segment; and determining a recency score for the first segment based at least on a logistic function and the quantity of temporal words, wherein the first ranking comprises the recency score.
18. The computer-implemented method of claim 17 , further comprising: accessing histogram data associated with the first search concept, wherein the histogram data indicates segments per a time unit associated with the first search concept; and selecting the logistic function from a set of logistic functions where the histogram data is within a threshold associated with the logistic function.