Analyzing communication network data set access of a data set group constituted by multiple data sets. The method includes the following steps: (i) determining, for a first interval, a first low access count value corresponding to an amount of data sets in the data set group that have been accessed, in the first interval, an amount of times that is no greater than a low access threshold value; (ii) determining, for a second interval, a second low access count value corresponding to an amount of data sets in the data set group that have been accessed, in the second interval, an amount of times that is no greater than the low access threshold value; and (iii) determining a delta value based, at least in part, on a difference between the first low access count value and the second low access count value.