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Journal of Artificial Societies and Social Simulation vol. 10, no. 4 part26 共246字,请翻译。2 _5 F& T5 B/ b' K1 }( B+ [
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9 J" Q/ B- }) v( F2 T3.24 We now turn to groups with a leader and space-dependent communication. In these groups, an individual that knows the location of the target will communicate this information to other individuals provided these other individuals are within a distance of 20 cells. : g7 G* a4 b: x
3.25 As we already know (cf. Table 7), small groups without a leader perform badly if the communication system is space-limited. This is because individuals in small groups are more dispersed than those in larger groups and space-dependent communication takes more time to reach them all. In our simulations, the presence of a leader implies that the group moves in a more spatially aggregated way. Therefore, in small groups with a leader, the individuals tend to be close to each other and even with space-limited communication information reaches all the individuals in the group very rapidly. In large groups, on the other hand, the presence of a leader either has no effect on performance or makes it worse. This is true regardless of whether communication in the group is space-dependent or space-independent (Table 11). | Table 11: Time taken to reach the target by the first and the last agent in groups of 10 and 50 agents with a space-dependent communication system and (a) a leader with the same sensory capabilities as the other members of the group; (b) a leader with better sensory capabilities than the other members of the group; (c) a leader and another individual with better sensory capabilities than the other members of the group | | (a) | Group size | First | Last | 10 | 654 (1431) | 703 (1424) | 50 | 81 (468) | 129 (468) | | (b) | Group size | First | Last | 10 | 466 (1093) | 513 (1087) | 50 | 40 (211) | 87 (217) | | (c) | Group size | First | Last | 10 | 305 (858) | 364 (860) | 50 | 40 (210) | 86 (217) | |
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