The interruption duration of user (i) needs to be within the maximum allowed value.
Moreover, the duration of each video skim should not be fixed, but should depend on the actual duration of user interest for a particular video segment.
where d i C denotes the duration of user i for context C. The results are shown in Figure 8 (right).
In Eq. (12), duration u i,u j ) denotes the encounter duration of user u i and u j, and (t_{u_{i},u_{j} }) denotes the total transmission delay between user u i and u j, which is related to the data transmission rate (R_{u_{i},u_{j} }) and data size F, as shown in Eq. (15).
However, as long as the channel characteristics can be obtained in advance, for instance, through applying channel training schemes and the variation of channel characteristics is slow compared to the transmission duration of user information, the basic idea of the proposed algorithm can still be applied to this type of channel scenario.
This aim was sub-divided into (1) checking if the duration of user sessions was too long (which indicates that there was no session timeouts and therefore session was shared among users) and (2) the inexistence of user profiles in the AT.
We assumed that certain user groups would experience less responsiveness, including: users of public health facilities, the elderly, females, users with lower educational status, low salary income earners, users with longer duration of enrolment, users with fewer visits to providers, and users with referral for secondary or tertiary care after enrolment.
Durations at Home, Office, Other, and Else account for 66.8%, 7.0%, 8.5%, and 14.0% of the total duration of all users, respectively.
There are already applications that use the GPS tracking available in many phones to track the length and duration of a user's walk or run.
