32. The computer system of claim 26 , wherein said factors include one or more of: the date or time of the most recent review in a cluster, the average rating of the reviews in a cluster, the number of reviews in a cluster, and the average similarity score of the reviews in a cluster.
32. The computer system of claim 26 , wherein said factors include one or more of: the date or time of the most recent review in a cluster, the average rating of the reviews in a cluster, the number of reviews in a cluster, and the average similarity score of the reviews in a cluster. 34. The computer system of claim 32 , wherein the factors are weighted such that clusters with more recent reviews, lower average ratings, higher number of reviews, and higher average similarity scores are assigned higher weights.