Using ontologies as a faceted browsing for heterogeneous cultural heritage collections

In this paper we present a project regarding the possible use of multi- ple and interconnected OWL ontologies (GO!, HiCo, and Proles) in order to explore the semantic content of heterogeneous digital collections (a digital li- brary, a full-text scholarly edition, and a relational database) in the cultural her- itage domain (Geolat, Vespasiano da Bisticci Letters, and Zeri photo archive). The aim is to discover knowledge by revealing, through facets, possible latent connections \u2013 or even contradictory statements \u2013 between data, moving from person, places and dates in an event-centric dimension determined by a context- oriented perspective