Real-time rendering representations of objects in a view. Objects include clusters of nodes of a graph structure and links between said clusters. The graph structure comprises edges defined as pairs of the nodes. User inputs in respect to a current view and/or at least one of the objects is received. A data structure is updated, which associates multiple identifiers. Multiple identifiers may include cluster identifiers, node identifiers, and link identifiers, which respectively identify clusters of nodes, nodes of said graph, and links between pairs of clusters.