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Cytoscape is an open source software platform for visualizing complex-networks and integrating these with any type of attribute data. A lot of plugins are available for various kinds of problem domains, including bioinformatics, social network analysis, and semantic web.

Wandora is a general purpose information extraction, management, and publishing application based on Topic Maps and Java Swing. Wandora has graphical user interface, layered presentation of knowledge, several data storage options, huge collection of data extraction, import and export options, embedded server, and open plug-in architecture. Wandora is a FOSS application with GNU GPL license.

InfiniteGraph enables large-scale graph processing, data analytics and discovery for organizations developing systems and services around social networking, business intelligence, scientific research, national security or similar areas.

The Journal of Information Architecture is an international peer-reviewed scholarly journal. Its aim is to facilitate the systematic development of the scientific body of knowledge in the field of information architecture.

the wiki for the community of users, administrators and developers of the Semantic MediaWiki extension to the MediaWiki application, and all its spinoff extensions, including Semantic Forms, Semantic Drilldown, Semantic Result Formats, Halo, Semantic Maps and others. The wiki itself uses many of these extensions, in order to provide a flexible yet structured interface to the data. Here you will find information on people and organizations in the Semantic MediaWiki community, a listing of SMW-based sites, a list of extensions themselves, a list of SMW-related events, a list of requested features for the extensions, and a list of "packages", which are collections of wiki pages defining properties, templates, forms etc. that can be imported into one's wiki to create an instant data structure.

Datao is a semantic web browser. It has all the capabilities of a modern web browser, it can browse the WorldWideWeb with all the Web2.0 features. But Datao is also a browser for the next-gen Web, the Semantic Web. That adds new exciting features to this piece of software:

MetaGlance is a web service used to generate metadata for web pages, documents and text passages. Automatically add tags to web pages, quickly get the gist of what is in a document, add metadata to a search index, and more.

FOAF-a-matic is a simple Javascript application that allows you to create a FOAF ("Friend-of-A-Friend") description of yourself. You can read more about FOAF in Edd Dumbill's "XML Watch: Finding friends with XML and RDF" article, at the FOAF homepage on RDFWeb, and also the FOAF vocabulary description.

This page provides a central collection of Semantic Web tutorial resources for interested readers and is maintained by the Semantic Web Best Practices and Deployment Working Group.

Oroboro is a lightweight Java RDF processing framework. Its design focuses on rule-based data extraction and integration tasks involving moderate datasets, targeting common use cases while striving to remain as simple and flexible as possible.

is a tool providing support for agile, distributed knowledge engineering scenarios. OntoWiki facilitates the visual presentation of a knowledge base as an information map, with different views on instance data. It enables intuitive authoring of semantic content, with an inline editing mode for editing RDF content, similar to WYSIWIG for text documents.

public group for those interested in the development of Sindice.com

The mission of the RDF Working Group, part of the Semantic Web Activity, is to update the 2004 version of the Resource Description Framework (RDF) Recommendation. The scope of work is to extend RDF to include some of the features that the community has identified as both desirable and important for interoperability based on experience with the 2004 ...

The DBpedia Ontology is a shallow, cross-domain ontology, which has been manually created based on the most commonly used infoboxes within Wikipedia. The ontology currently covers over 272 classes which form a subsumption hierarchy and are described by 1,300 different properties.

Semantic Tools

The following are lists of active, defunct and proposed semantic wiki code projects (or "engines"). Please, add only wikis or ontologies to this page if there is either a published paper or a public, running prototype. Also, consider using the Category:Semantic wiki to tag articles about semantic wikis.