Mobile Search and Exploration of Live Social Semantic Data using Facets

Dear Semantic Web

We have developed an Android-based mobile application called Mobile
Facets [1] for the interactive faceted search and exploration of a
large, distributed social media data set on a touchscreen mobile phone. 

As social media data sources we use DBpedia, geo-located Flickr photos,
and the event directories Eventful and Upcoming. In addition, we use
professional content from the event directories as well as places
described in GeoNames. The users can search and explore the dataset by
means of facets and retrieve resources like places, persons,
organizations, and events. To visualize the result set, the Mobile
Facets application provides a map view, result list view, and photo
view. As the resources are queried live from the different data sources,
we cannot make any assumptions about which facets are provided in a
specific user's contextual situation and how many resources Mobile
Facets receives. Thus, in contrast to existing approaches, the user
interface had to be designed such that it is flexible with respect to
the amount and kind of facets and resources retrieved live from the
social media data.

Screenshots of the application and a 3-minute-video showing Mobile
Facets live in action can be found on [1].

The APK of the application for Android-based mobile phones is available
upon request.

Best wishes,


[1] Mobile Facets Website:

Dr. Ansgar Scherp
University of Koblenz-Landau
Institute for Web Science and Technology   Phone: +49(0)261/287-2717
Universitaetsstrasse 1                     Fax  : +49(0)261/287-2721
D-56070 Koblenz, Germany                   Mail :

~ - Media with a Meaning

Received on Friday, 18 February 2011 12:11:03 UTC