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arXiv 0902.4013physics.soc-phcond-mat.stat-mechphysics.data-an
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随机无环网络

Random acyclic networks

Brian Karrer, M. E. J. Newman

摘要:

有向无环图是一类基本的网络,包括引用网络、食物网和家谱等。在这里,我们定义了一个随机图模型的有向无环图,并给出解决方案的一些模型的属性,包括连接概率和组件的大小,以及一个快速的算法在计算机上模拟模型。我们将该模型的预测与物理论文之间的真实引用网络进行了比较,并发现惊人的一致性,这表明真实网络的结构可以很好地由随机图描述。

英文摘要:

Directed acyclic graphs are a fundamental class of networks that includes citation networks, food webs, and family trees, among others. Here we define a random graph model for directed acyclic graphs and give solutions for a number of the model's properties, including connection probabilities and component sizes, as well as a fast algorithm for simulating the model on a computer. We compare the predictions of the model to a real-world network of citations between physics papers and find surprisingly good agreement, suggesting that the structure of the real network may be quite well described by the random graph.

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。

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