Research Article
An Extended Model for the UAVs-Assisted Multiperiodic Crowd Tracking Problem
| Crowds | Periods | Stations | Capacities | UAVs initial states | P1 | P2 | P3 | P4 |
| C1 | 3 | 3 | — | — | S1 | 4 | U11-U12-U15 | C2 | 2 | 2 | 5 | 5 | S2 | 5 | U1-U10-U13-U16 | C3 | 2 | 2 | — | — | S3 | 6 | U2-U3-U6-U7-U9-U14 | C4 | 3 | 3 | 3 | 4 | S4 | 3 | U4-U5-U8 |
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