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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Smart Health (Amst). 2020 Sep 8;18:100137. doi: 10.1016/j.smhl.2020.100137

Fig. 2:

Fig. 2:

Illustration of identifying on-off periods. (a) Per-minute traffic for each of the three external IP addresses (an oval marks the presence of traffic in that minute). (b) Aggregation for each IP address. (c) Aggregation over the IP addresses.