1. A method, comprising: receiving a plurality of video shots of a video, wherein each video shot includes one or more frames of the video; generating a hierarchy based on the plurality of video shots, wherein the hierarchy comprises a plurality of superclusters that include at least one of a plurality of shot clusters, wherein the hierarchy describes relationships between the plurality of video shots, wherein each of the shot clusters includes at least one of the plurality of video shots; computing a value for a statistic for the video based on the hierarchy, wherein the statistic comprises a ratio of a count of the plurality of superclusters having less than four of the plurality of shot clusters to a total count of the plurality of superclusters; and computing, by operation of a computer processor, an expected value for a metric based on the statistic.