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Forman's Ricci Curvature - From Networks to Hypernetworks

机译:Forman的Ricci曲率-从网络到超网络

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Networks and their higher order generalizations, such as hypernetworks or multiplex networks are ever more popular models in the applied sciences. However, methods developed for the study of their structural properties go little beyond the common name and the heavy reliance of combinatorial tools. We show that, in fact, a geometric unifying approach is possible, by viewing them as polyhedral complexes endowed with a simple, yet, the powerful notion of curvature - the For-man Ricci curvature. We systematically explore some aspects related to the modeling of weighted and directed hypernetworks and present expressive and natural choices involved in their definitions. A benefit of this approach is a simple method of structure-preserving embedding of hypernetworks in Euclidean N-space. Furthermore, we introduce a simple and efficient manner of computing the well established Ollivier-Ricci curvature of a hypernetwork.
机译:在应用科学中,网络及其更高阶的概化(例如超网络或多路复用网络)越来越受欢迎。但是,为研究其结构特性而开发的方法几乎没有超出通用名称和对组合工具的高度依赖。我们表明,实际上,通过将它们视为具有简单但强大的曲率概念的多面体复合物,即For-man Ricci曲率,可以实现几何统一的方法。我们系统地探索了与加权和定向超网络建模有关的某些方面,并提出了涉及其定义的表达方式和自然选择。这种方法的好处是在欧几里得N空间中保留超网络的结构保留的简单方法。此外,我们介绍了一种简单有效的方法来计算超网络中成熟的Ollivier-Ricci曲率。

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