Two-mode geometry controls multiscale organization in bipartite systems
Why collapsing two-sided networks hides their true structure across scales
A new method for zooming in and out on networks where two different types of things interact—like plants and pollinators, or actors and movies—reveals multiscale structure that standard techniques miss. When researchers compressed these bipartite networks the usual way, they erased crucial information about role separation; the new approach preserves it, uncovering hidden hierarchies that traditional analysis overlooks.
Many real systems—food webs, disease transmission networks, supply chains—naturally split into two distinct roles that interact with each other. Understanding their organization across scales is essential for predicting how they behave and respond to disruption. Standard network analysis has been inadvertently destroying the information needed to see this organization clearly.