These visual prototypes made a series of significant
improvements to the classical interfaces of journal and digital
library portals. Thus, on the one hand, they provided more rapid
search times compared to those of traditional non-visual methods
(Hienert et al., 2012) and, on the other, they permitted a more
efficient formulation of queries in a way that was tailored to the
information needs of users. And, finally, they provided additional
information to users, information that was not available on a page
of more conventional results. This extra information, which shows
different semantic relationships between the documents retrieved,
provides a better interaction with the results and facilitates the
refinement of subsequent queries (Bauer, 2014).