网络中核心-外围的出现
Emergence of core-peripheries in networks
摘要：
一些重要的运输网络，如世界上的航空和贸易网络，表现出典型的核心-外围结构，其中一些节点高度互连，网络的其余部分分散成一棵树。然而，核心-边缘地区出现的机制仍然难以捉摸。在这里，我们证明了一个简单的修剪过程的基础上删除未充分利用的链接和重新分配的负载可以导致出现的核心外围。如果链路承载足够大的负载或对于全球连通性是必不可少的，则认为它们是有益的。这种激励性的再分配过程由一个平衡连接性和利润的参数控制。所得到的网络表现出高度弹性和连接的核心与磨损的外围。平衡网络显示出比世界航空公司网络或世界贸易网络更高的弹性，揭示了通过修剪实现稳健结构特征的途径。
英文摘要：
A number of important transport networks, such as the airline and trade networks of the world, exhibit a characteristic core-periphery structure, wherein a few nodes are highly interconnected and the rest of the network frays into a tree. Mechanisms underlying the emergence of core-peripheries, however, remain elusive. Here, we demonstrate that a simple pruning process based on removal of underutilized links and redistribution of loads can lead to the emergence of core-peripheries. Links are assumed beneficial if they either carry a sufficiently large load or are essential for global connectivity. This incentivized redistribution process is controlled by a single parameter which balances connectivity and profit. The obtained networks exhibit a highly resilient and connected core with a frayed periphery. The balanced network shows a higher resilience than the World Airline Network or the World Trade Network, revealing a pathway towards robust structural features through pruning.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
