December 07, 2004

ADTF:UNSO

URL: http://cslx.haifa.ac.il/~slavax/UNSO.html
Date created: 2004-12-07

Description:
Unspecified Ontologies for P2P: this approach premises that the domain ontology of an E-commerce application is not fully defined and parts of it can be dynamically specified by the peers. To implement semantic routing we extend a hypercube graph structure to a multi-layered hypercube (MLH), where each vertex recursively consists of another hypercube. We use hashing to deal with the unspecified nature of the ontology and with the variety of terms that can be used. This allows the peers to distributively manage a dynamically growing ontology and uniformly distributes the ads among the MLH. To eliminate ambiguity and enhance system precision, the terms used by the peers in the ontological description of an object undergo simple semantic standardization using WordNet.

Author:
Shlomo Berkovsky University of Haifa, Israel

Categories Applications and Demos | Databases, Query and APIs | RDF authoring
Posted by felixbur at 03:26 PM | Comments (0)

November 30, 2004

ADTF: pOWL

URL: http://powl.sourceforge.net/swc/
Date created: 2004-11-30

Description:
The aim of pOWL is to deliver an easy-to-deploy and easy-to-use, scalable, PHP and web-based ontology management solution to the Open Source community, which covers the whole ontology lifecycle. Despite the fact that pOWL is still in beta quality stage it is already productively used in several projects. A final production grade version 1.0 will be published October 15th. As a use case, we present the application of pOWL to semantic web content management and how it may be used as a foundation framework for semantic web applications.

Author:
Soren Auer University of Leipzig, Germany

Categories Applications and Demos | RDF authoring | Standards and Specifications
Posted by felixbur at 02:18 PM | Comments (0)

June 12, 2004

ADTF: RDFAuthor

URL: http://rdfweb.org/people/damian/RDFAuthor/
Date created: 2001-10

Description:
RDFAuthor is a graphical MAC OS X/java tool designed to ease the pain of creating RDF instance data. Authoring is largely a matter of dragging in data and binding it together using a graphical interface. RDF Schemas can be loaded into a browser and then dragged and dropped to create instances of classes and properties. URLs can also be dragged in from different applications. There is export to various formats including RDF/XML, image formats, SVG, PDF. RDF graphs can be loaded from files or the web and displayed. The MAC tool has more features than the Java tool.

Usecase:
RDFAuthor is useful for creating RDF files from scratch, for example for combining vocabularies from FOAF, Dublin Core to create an RDF document describing a person depicted in a photo.

Author:
Damian Steer

More information:
RDFAuthor tutorial

Categories Applications and Demos | RDF authoring | Visualization and Images
Posted by lmiller2 at 01:54 PM | Comments (0)