VUE. RDF-Gravity. Sunil Goyal, Rupert Westenthaler {sgoyal, rwestenthaler}@salzburgresearch.at Salzburg Research, Austria RDF Gravity is a tool for visualising RDF/OWL Graphs/ ontologies. Its main features are: Graph VisualizationGlobal and Local Filters (enabling specific views on a graph) Full text SearchGenerating views from RDQL QueriesVisualising multiple RDF files RDF Gravity is implemented by using the JUNG Graph API and Jena semantic web toolkit. Figure 1: Screenshot of RDF-Gravity, showing a part of Wine Ontology 1 Graph Visualisation RDF Gravity defines a visualization package on top of the JUNG Graph API. Configurable renderers for edges and nodes of a graph, including different node shapes and edge decorations etc.A Renderer Factory allowing the configuration of the above node and edge renderers based on the type of an edge or node.
For graph layout, it uses the layout algorithms directly supported by the Jung API. 2 Global & Local Filters 3 Full Text Search 4 Visualising Multiple RDF Files. Call & Response. » Delicious Tag Clouds - Inan Olcer - Designer Developer. Top-Down: A New Approach to the Semantic Web. Earlier this week we wrote about the classic approach to the semantic web and the difficulties with that approach.
While the original vision of the layer on top of the current web, which annotates information in a way that is “understandable” by computers, is compelling; there are technical, scientific and business issues that have been difficult to address. One of the technical difficulties that we outlined was the bottom-up nature of the classic semantic web approach. Specifically, each web site needs to annotate information in RDF, OWL, etc. in order for computers to be able to “understand” it.
As things stand today, there is little reason for web site owners to do that. The tools that would leverage the annotated information do not exist and there has not been any clearly articulated business and consumer value. But there are alternative approaches. Why Do We Need The Semantic Web? Stated the way it is, the semantic web becomes a vision in search of a reason. Conclusion. GUESS: The Graph Exploration System, Download.
Download If you would just like to run GUESS you have the option: Version 1.0.3-beta Install the latest beta (08/13/2007). This does not come with an installer, but has many more features. If you have the 1.0.2 version installed you can just download the "upgrade". You'll miss out on a few new sample files, but it should be ok.Version 0.5-alpha Available in ZIP or EXE (windows self insalling executable)All releases I am working on a general installer for all systems, but please let me know if you have any problems installing in the meantime. In any case you will need: You will want to read the README.TXT and tutorial/walk through in the manual. Source GUESS is distributed under a GPL license. How To Tell Stuff To A Computer - The Enigmatic Art of Knowledge.