1. A method comprising: based on a semantic network model defining relationships amongst multiple nodes in a semantic network, rendering a graphical user interface to include a first radial perspective of a portion of the semantic network as viewed from a first node of the semantic network; receiving selection of a second node of the semantic network displayed in the first radial perspective; and in response to receiving the selection, updating the graphical user interface to include a second radial perspective of a portion of the semantic network as viewed from the second node of the semantic network and providing a visual indication in the second radial perspective that the first node resides higher in a hierarchy than the second node.