Abstract: Processing node-link data comprising: obtaining the node-link data as a relational dataset having a plurality of nodes with inherent relationships between the nodes; generating a first level of the node-link data by aggregating the plurality of nodes into a plurality of first level communities and determining a respective first level relationship strength; generating a second level of the node-link data by aggregating the plurality of nodes into a plurality of second level communities and determining a respective second level relationship strength, each of the nodes in a first level community being assigned to only one of the plurality of second level communities; creating second level layout data by determining a relative visual size of each of the second level communities and determining a relative visual separation between each of the second level communities based; creating first level layout data by determining a relative visual size of each of the first level communities and determining a relative visua