Fig. 4 shows the data transformation from transaction data
into the O-D time interval format. In the O-D time interval
format, transaction data are aggregated to 15 minutes time
interval per day. The ―Origin ID‖ and ―Destination ID‖
columns refer the station IDs of the origin and destination
station respectively. The ―Day of Month‖ column captures the
day of the month for that given record (for example, if the date
is 13 Nov 2011, the day of the month would be 13). The
―Time Interval‖ column captures the time interval of the
record; it will be a 15 minutes time interval starting from
0600H to 2345H. The ―Passenger‖ column captures the
number of passengers that is traveling from the origin to the
destination in that particular day of the month and time
interval.
The output of the transformation is saved as a CSV file for
the performance of time-series data mining using SAS
Enterprise Miner.
C. SAS Enterprise Miner
The SAS Enterprise Miner is an analytical software
application that streamlines data mining processes and allows
users to perform predictive and descriptive analytics on large
volumes of data. The application has interactive visualization