ISSS608 2016-17 T1 Assign3 Abhinav Ghildiyal Q3

When Vandalism happened?

From the analysis I did, most of the patterns break on the 3rd day, i.e. on Sunday between 11 am to 12 pm. So there is a high probability that the vandalism might have occurred on Sunday between 11 am and 12 pm. Now, we will see some patterns that confirms that the vandalism happened on Sunday.

In the above visualization we can see that between 11 am and 12 pm there is a shoot in call from Wet Land and the Entry Corridor. Now if I select the Target as external we see a hike in calls from Wet Land to the external Id. ID 1000618 has done a minimum number of calls where as ID 999412 has done the max number of calls to the external Id.

Below is the graph showing the number of calls made by different Id`s from Wet Land to the ID 839736 at the same time there are almost the same number of calls made from the Entry Corridor by ID 839736.

In the below graph if I select Target as external, I could see an exponential increase in the number of calls at around 11 am.

From the above analysis we can conclude that the vandalism has happened between 11 Am and 12 Pm, because this is the time when the maximum number of calls has gone to the external id, and the crime has happened at the Wet Land because the mamimum number of calls has gone from the Wet Land.