| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T288 |
0-92 |
Sentence |
denotes |
For this research, a virus transmission interval is assumed to be a time interval of 15 min. |
| T289 |
93-279 |
Sentence |
denotes |
In other words, if user A was interacting with a room that had been used by a positive COVID-19 infected person, user B, the system would notify user A of probable exposure to the virus. |
| T290 |
280-437 |
Sentence |
denotes |
If we consider the situation in which cleaning activity took place after user B left the room, the risk of being exposed by the infected place would be zero. |
| T291 |
438-513 |
Sentence |
denotes |
This case can be considered a false positive notification alert for user A. |
| T292 |
514-639 |
Sentence |
denotes |
As a result, the proposed system can considerably reduce false positive notifications by using different types of activities. |
| T293 |
640-811 |
Sentence |
denotes |
A demo scenario of cleaning person is presented in Supplementary Materials and the trajectories of both building cleaners and visitors is shown in Supplementary Materials. |
