| Abstract |
In this work, we explore the use of location aware mobile devices for
searching and browsing a large number of general and cultural
heritage information repositories using minimal interaction. Based on
GPS positioning we can determine a user's location and context, composed of physical
nearby locations, historic events that have taken place there, artworks
that are created or inspired by those locations and artists that have
lived or worked there. The user has three levels of refinement: pointing
to a specific heading, select facets of cultural heritage object
(location, event, artwork or people) and subfacets (e.g.: painting,
photograph, book, artist, musician, politician, sport and conflict). In
our approach two types of knowledge are combined: general knowledge
about geolocations and points of interest and specialized knowledge about
a particular domain, i.e. cultural heritage. We use a number of the
Linked Open Data sources (DBpedia, Freebase, GeoNames, Wordnet) and a
number of general sources from the cultural heritage domain (AAT, ULAN,
TGN) as well as data from several cultural institutions (Netherlands Institute
for Art History and Rijksmuseum Amsterdam). We show three concrete
scenarios where a tourist accesses localized information on his
iPhone about the current environment, events, artworks or persons. The
semantic search engine ClioPatria is used to search the repositories. We
show that Linked Open Data sources in isolation are currently too limited to
provide interesting semantic information but combined with each other
and with a number of other sources a really informative location-based
service can be created. |