Abstract
The Media Watch on Climate Change is a domain-specific news aggregation portal that combines a portfolio of
semantic services with a visual information exploration and retrieval interface (www.ecoresearch.net/climate). It
provides a comprehensive and continuously updated account of online media coverage on climate change and
related issues. The portal aggregates, filters and visualizes environmental content from the Web sites of AngloAmerican
news media sites, blogs, environmental organizations, and the Fortune 1000 companies. The heterogeneous
sources reflect the perceptions of different stakeholders, who have a unique stance on environmental strategies
and a varied means to promote and implement them.
The system builds contextualized information spaces by enriching a content repository with geospatial, semantic
and temporal annotations, and by applying semi-automated ontology learning to create a controlled vocabulary
for structuring the stored information. Portlets visualize the different dimensions of the contextualized information
spaces, providing the user with multiple views on the latest news media coverage. Context information facilitates
access to complex datasets and helps users navigate large repositories of Web documents. Currently, the
system synchronizes information landscapes, domain ontologies, geographic maps, tag clouds and just-in-time
information retrieval agents that suggest similar topics and nearby locations.
Acknowledgement. RAVEN (Relation Analysis and Visualization for Evolving Networks) is a research project
within the strategic objective FIT-IT Semantic Systems (www.modul.ac.at/nmt/raven). The system been developed
by S. Kamran Ali Ahmad (knowledge planet), A. Dickinger (usability), A. Hubmann-Haidvogel (frontend),
H.-P. Lang (ontology map), W. Rafelsberger (tag cloud), A. Scharl (project lead), H. Stern (geotagging), A.
Weichselbraun (technical lead), G. Wohlgenannt (system architecture), and D. Zibold (ontology map). The semantic
map's force-directed placement algorithms have jointly been developed with V. Sabol and M. Muhr from
Know-Center Graz.
| Original language | English |
|---|---|
| Title of host publication | Proceedings from EnviroInfo 2009 |
| Pages | 279-280 |
| Number of pages | 2 |
| Publication status | Published - 2009 |
| Event | EnviroInfo 2009 - Germany, Berlin, Germany Duration: 9 Sept 2009 → 11 Sept 2009 |
Conference
| Conference | EnviroInfo 2009 |
|---|---|
| Country/Territory | Germany |
| City | Berlin |
| Period | 09/09/2009 → 11/09/2009 |