if an interesting period
is quite the same pattern at rate of 60 %, it is the seasonality.
Seasonality in this paper uses a simple criterion, which is if
the observed period is repeated at rate of about 75 %, it can
be classified as the seasonality. In this paper, seasonal
cycles are repeated every week. If there are three repeating
traffic times from four times in the month, it is the
seasonality. An example of calculation can be found in the
subsection IV(A) subsection.