jasss系列：V 10, I 4, N.1:"Groups of Agents with a Leader" P23

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Groups of Agents with a Leader

Journal of Artificial Societies and Social Simulation vol. 10, no. 4

原文网址：http://jasss.soc.surrey.ac.uk/10/4/1.html

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( R& X" l% s9 {9 D3.20 The addition of communication to groups with a leader has no effect on the cost of exploring the environment in an aggregate way but cancels its benefits (Table 8). As soon as one individual discovers the target, all the other individuals in the group will know its location and move directly to the target, the small differences in performance being due to differences in the communication topology. As already observed, the advantage of moving as a group is that the whole group is close to the target when it is detected for the first time. But in groups with communication all individuals reach the target rapidly, independently of their location. As a result, the presence of a leader has a negative impact on group performance. In a group of 50 individuals with a leader and all-to-all communication, the last individual to reach the target takes more than twice the time taken by the last individual in a group without a leader. In groups of 10 individuals, the time taken is more than six times as long. The results for star and ring topologies are very similar.

Table 8: Time taken to reach the target by the first and the last agent in groups of 10 and 50 agents with a leader and space-independent all-to-all communication
Group size	First	Last
10	654 (1431)	679 (1426)
50	81 (468)	119 (464)