ThManager is an Open Source Tool for creating and visualizing SKOS RDF vocabularies, a W3C initiative for the representation of knowledge organization systems such as thesauri, classification schemes, subject heading lists, taxonomies, and other types of controlled vocabulary. ThManager facilitates the management of thesauri and other types of controlled vocabularies, such as taxonomies or classification schemes. The tool has been implemented in Java and has the following features:
Multi-platform (Windows, Unix). As it has been developed in Java and the storage of metadata records is managed directly through the file system, the application can be deployed in any platform with the minimum requirement of having installed a Java virtual machine.
Multilingual. The application has been developed following the Java internationalization methodology. Nowadays, there are Spanish and English versions. With little effort, other languages could be supported.
Selection and filtering of the thesauri stored in the local repository.
Description of thesauri by means of metadata in compliance with a Dublin Core based application profile for thesaurus (See application profile) . These metadata can be either visualized in HTML or edited through a form.
Visualization of thesaurus concepts. The visualization interface includes the following widgets:
Alphabetic viewer: It provides the list of thesaurus concepts alphabetically ordered in the selected language.
Hierarchical viewer: It provides a tree showing the hierarchical structure of thesaurus concepts.
Concept viewer: For a selected concept it shows all the properties allowing additionally the navigation to the related concepts by means of hyperlinks.
Search tool: It facilitates search of concepts. The searching process is based on preferred labels allowing the following criteria: "equals", "starts with" and "contains".
Edition of thesaurus content. The tool provides an edition interface to modify the content of a thesaurus: creation of concepts, deletion of concepts, and update of concept properties.
Exchange of thesauri according to SKOS format. The export operation includes the export of thesaurus metadata.
Extraction of related concepts in WordNet. It generates an automatic mapping of thesaurus concepts against the concepts of Wordnet lexical database.
On-line help by means of PDF visualization.
Wandora is a general purpose knowledge extraction, management, and publishing application based on Topic Maps and Java. More precisely Wandora is an open source desktop application to build and manage topic maps. Wandora has graphical user interface, layered presentation of knowledge, several data storage options, rich data extraction, import and export capabilities, and open plug-in architecture. Wandora's license is GNU GPL. Wandora suits well for knowledge mashups. Wandora is capable to extract and convert various open data feeds to Topic Maps format (see image below). Beyond Topic Maps conversion this feature allows Wandora user to aggregate multidimensional knowledge bases where information from Flickr meets Geonames and Delicious, for example. Read more at documentation.
OpenCyc is the open source version of the Cyc technology, the world's largest and most complete general knowledge base and commonsense reasoning engine. OpenCyc can be used as the basis of a wide variety of intelligent applications such as:
* rapid development of an ontology in a vertical area
* email prioritizing, routing, summarization, and annotating
* expert systems
* games
to name just a few.
OWL reasoner engines can contribute with the semantic enrichment over ontologies. The manner in which this knowledge is represented in OWL has been an obstacle to incorporate this semantic features in the object-oriented paradigms. JASB architecture pretends to be a bridge for joining this two different worlds. This platform offers a connection point in which the object instances of the object-oriented programming could have semantic features provides by mean of the reasoning processes available in OWL arena.
The architecture is composed by two clearly differenciated tools, each one is focussing on different objective.
In the logical sequence of a software development, the first tool covers the statical aspect of the inclusion of semantic features into object-oriented application. Thus, in the following picture can be seen the architecture for thisthe first tool, the JASB compiler.
Altova SemanticWorks™ 2007 is the ground-breaking visual RDF/OWL editor from the creators of XMLSpy. Visually design Semantic Web instance documents, vocabularies, and ontologies then output them in either RDF/XML or N-triples formats. SemanticWorks™
Using RhNav - Rhizome Navigation I wrote a data aggregator for Technorati's API. The first result is a video which visualizes blog domains by analysing Technorati's Cosmos (the blogs which link to a particular URL). The video is a screencast of RhNav fetc
S. Staab, T. Walter, G. Gröner, und F. Parreiras. Reasoning Web. Semantic Technologies for Software Engineering, Volume 6325 von Lecture Notes in Computer Science, Springer Berlin / Heidelberg, 10.1007/978-3-642-15543-7_3.(2010)
B. Decker, E. Ras, J. Rech, B. Klein, und C. Hoecht. Proceedings of the Workshop on Semantic Web Enabled Software Engineering (SWESE), held at the 4th International Semantic Web Conference (ISWC 2005) November 6th-10th, (2005)