To improve environmental awareness and help users access topical and relevant information, the Media Watch on Climate Change 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 various stakeholders: 150 Anglo-American news media sites, blogs, environmental organizations, and the corporate sector. The user manual contains a detailed description of the portal’s search functionality, trend charts and visual exploration features.
]]>After tracking candidate performance during the primaries and continuously refining the analyses, the IDIOM team (see photo below, which was taken during the award ceremony) has recently re-launched the Web site at www.ecoresearch.net/election2008. The Web site now focuses on the presidential candidates and their running mates, supplements the analytical tools with semantic and geospatial interfaces, and includes two social media applications built upon the Facebook platform.
]]>Project spokesperson, Prof. Arno Scharl of MODUL University Vienna’s Department of New Media Technology, describes how the planet metaphor allows the representation of massive amounts of textual data. “At the time of map generation, the knowledge planet’s topography is calculated by analyzing thousands of documents. The peaks of the virtual landscape indicate abundant coverage on a particular topic, whereas valleys and oceans represent sparsely populated parts of the information space. The landscape is then projected onto virtual globes such as NASA World Wind, Google Earth and Microsoft Virtual Earth. As only World Wind is available under an open-source license and allows full integration into existing Web applications through its Java Software Development Kit, it was the natural choice for implementing our prototype.”
The Java applet rendering the knowledge planet draws upon the extensive news archive of the Media Watch on Climate Change, which provides a continuously updated account of media coverage on climate change and related issues. Aiming to increase awareness and the availability of environmental information, the system filters and visualizes more than 200,000 documents from Anglo-American news media sites in weekly intervals.
Online Resources
The system gathers content from environmental organizations, blogs, the Fortune 1000, and international media from the US, Canada, United Kingdom, Australia and New Zealand. Processing these sites yields more than 800,000 documents each week. An automated process identifies attention by counting references to a candidate. It measures sentiment towards the candidate by looking for positive and negative expressions that co-occur with these references. Keyword lists reflect the most important topics associated with the candidate. Interactive visualizations allow a closer examination of the gathered data. Information landscapes, geographic maps, ontology graphs and tag clouds help understand complex semantic relationships. Besides tracking recent developments, users can also cast their vote for their preferred candidate.
]]>Aiming to increase awareness and the accessibility of environmental information, the Media Watch provides a continuously updated account of media coverage on climate change and related issues. The portal aggregates, filters and visualizes environmental Web content from about 150 Anglo-American news media sites. Automated content analysis extracts geospatial context to build a comprehensive, geotagged knowledge base. A visual interface provides interactive access to this knowledge base. It shows that geobrowsers are not only suited to explore geographic features, but can also be used to render other types of imagery such as three-dimensional Knowledge Planets.
Environmental communication and collaboration are crucial to conceiving and implementing change on both regional and society-wide scales. Within the next six months, the Media Watch will therefore be extended into an interactive collaboratory for the scientific community, commercial entities, and non-governmental organizations (NGOs) - stakeholders often divided by differing worldviews, goals and agendas.
]]>This book describes a wide range of information services built on top of geobrowsers. The role of contextual knowledge in shaping the emerging network society receives particular attention. The IDIOM project extracts such contextual knowledge automatically by processing Web documents, user profiles and other electronic sources to identify relevant content for its collaborative platforms.
In addition to the mentioned sample chapter on “Media Platforms for Managing Geotagged Knowledge Repositories“, the book’s Web site provides the table of contents, preface and foreword, 25 chapter abstracts, and author biographies.
Citation
The developed methodology will help to improve crucial parts of IDIOM’s core architecture. Thus, final results will be needed around August 2007. An excellent thesis completed within this timeframe will be rewarded with a bonus between 300 and 1,000 EUR.
Contact: Dr. Albert Weichselbraun
Wirtschaftsuniversität Wien
Institut für Informationswirtschaft
Augasse 2-6, A-1090 Wien
albert.weichselbraun@wu-wien.ac.at
Tel: 43-1-31336-5229