Inferring Ties in Social IoT Using Location-Based Networks and Identification of Hidden Suspicious Ties

Figure 6

The Recall formed between two callers due to social contact depending upon the number of times they have connected through the same base station within a specific time frame. Figure 6(a) shows the Recall for the six different time frame lines, whereas is the number of cooccurrences and is the number of direct calls. (a)  = 15, (b)  = 10, (c)  = 5, and (d)  = 2.

(a)

(b)

(c)

(d)