Caram L F, Caiafa C F, Ausloos M, Proto A N
Laboratorio de Redes y Sistemas Móviles, FI-UBA. Av. Paseo Colón 850, Buenos Aires, C1063ACV, Argentina.
Instituto Argentino de Radioastronomía (CCT La Plata, CONICET), C.C.5, Villa Elisa, Buenos Aires, 1894, Argentina.
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Aug;92(2):022805. doi: 10.1103/PhysRevE.92.022805. Epub 2015 Aug 10.
A multiagent based model for a system of cooperative agents aiming at growth is proposed. This is based on a set of generalized Verhulst-Lotka-Volterra differential equations. In this study, strong cooperation is allowed among agents having similar sizes, and weak cooperation if agents have markedly different "sizes", thus establishing a peer-to-peer modulated interaction scheme. A rigorous analysis of the stable configurations is presented first examining the fixed points of the system, next determining their stability as a function of the model parameters. It is found that the agents are self-organizing into clusters. Furthermore, it is demonstrated that, depending on parameter values, multiple stable configurations can coexist. It occurs that only one of them always emerges with probability close to one, because its associated attractor dominates over the rest. This is shown through numerical integrations and simulations, after analytic developments. In contrast to the competitive case, agents are able to increase their capacity beyond the no-interaction case limit. In other words, when some collaborative partnership among a relatively small number of partners takes place, all agents act in good faith prioritizing the common good, when receiving a mutual benefit allowing them to surpass their capacity.
提出了一种针对旨在实现增长的合作智能体系统的基于多智能体的模型。该模型基于一组广义的Verhulst-Lotka-Volterra微分方程。在本研究中,允许规模相似的智能体之间进行强合作,而规模明显不同的智能体之间则进行弱合作,从而建立了一种对等调制的交互方案。首先对稳定配置进行了严格分析,研究了系统的不动点,然后根据模型参数确定其稳定性。结果发现,智能体自组织形成集群。此外,还证明了根据参数值,多个稳定配置可以共存。结果表明,其中只有一个总是以接近1的概率出现,因为其相关吸引子比其他吸引子占主导地位。这是在经过解析推导后通过数值积分和模拟显示的。与竞争情况相反,智能体能够将其能力提高到无交互情况下的极限之上。换句话说,当相对少数的伙伴之间建立某种合作关系时,所有智能体都会真诚行事,在获得互利从而使它们能够超越自身能力时,将共同利益置于优先地位。