dorsal/arxiv
View SchemaDynamics of Helping Behavior and Networks in a Small World
| Authors | Hang-Hyun Jo, Woo-Sung Jung, Hie-Tae Moon |
|---|---|
| Categories | |
| ArXiv ID | physics/0603179 |
| URL | https://arxiv.org/abs/physics/0603179 |
| DOI | 10.1103/PhysRevE.74.026120 |
| Journal | Phys. Rev. E 74, 026120 (2006) |
Abstract
To investigate an effect of social interaction on the bystanders' intervention in emergency situations a rescue model was introduced which includes the effects of the victim's acquaintance with bystanders and those among bystanders from a network perspective. This model reproduces the experimental result that the helping rate (success rate in our model) tends to decrease although the number of bystanders $k$ increases. And the interaction among homogeneous bystanders results in the emergence of hubs in a helping network. For more realistic consideration it is assumed that the agents are located on a one-dimensional lattice (ring), then the randomness $p \in [0,1]$ is introduced: the $kp$ random bystanders are randomly chosen from a whole population and the $k-kp$ near bystanders are chosen in the nearest order to the victim. We find that there appears another peak of the network density in the vicinity of $k=9$ and $p=0.3$ due to the cooperative and competitive interaction between the near and random bystanders.
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"abstract": "To investigate an effect of social interaction on the bystanders\u0027\nintervention in emergency situations a rescue model was introduced which\nincludes the effects of the victim\u0027s acquaintance with bystanders and those\namong bystanders from a network perspective. This model reproduces the\nexperimental result that the helping rate (success rate in our model) tends to\ndecrease although the number of bystanders $k$ increases. And the interaction\namong homogeneous bystanders results in the emergence of hubs in a helping\nnetwork. For more realistic consideration it is assumed that the agents are\nlocated on a one-dimensional lattice (ring), then the randomness $p \\in [0,1]$\nis introduced: the $kp$ random bystanders are randomly chosen from a whole\npopulation and the $k-kp$ near bystanders are chosen in the nearest order to\nthe victim. We find that there appears another peak of the network density in\nthe vicinity of $k=9$ and $p=0.3$ due to the cooperative and competitive\ninteraction between the near and random bystanders.",
"arxiv_id": "physics/0603179",
"authors": [
"Hang-Hyun Jo",
"Woo-Sung Jung",
"Hie-Tae Moon"
],
"categories": [
"physics.soc-ph"
],
"doi": "10.1103/PhysRevE.74.026120",
"journal_ref": "Phys. Rev. E 74, 026120 (2006)",
"title": "Dynamics of Helping Behavior and Networks in a Small World",
"url": "https://arxiv.org/abs/physics/0603179"
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