6. An article of manufacture for visualizing a data set, said data set comprising a plurality of entities, facets and relations, comprising a non-transitory machine readable recordable storage medium containing one or more programs which when executed implement the step of: generating, using at least one processing device, a visualization of a plurality of said facets in said data set, wherein said visualization indicates connections along said plurality of said facets in a single view using multi-faceted edges, wherein said entities are instances of a particular concept, said facets are classes of entities and said relations are connections between pairs of said entities, wherein said relations comprise one or more internal relations that are connections between entities within a same facet and one or more external relations that are connections between entities of different facets; rotating, using at least one processing device, one or more compound nodes to one or more of reduce an average length of one or more of said edges and allow edge bundling; and updating, using at least one processing device, said visualization based on said rotating.
17. The article of manufacture of claim 6 , wherein said visualization represents a co-occurrence pattern using parallel links between associated entities.