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The real challenge for Semantic Web technologies and ontologies lays in the adoption; although the need for this disruptive technology is clear, it has not yet been fully adopted by the mainstream. Ontologies: where, what for, how, when and why? Ontologies are being used in several applications, but is ontology engineering a mature discipline? Not only are we interested in practical realizations of the Semantic Web, but also in visions of technology that illustrate how SW technology and ontologies could change our experience of the Web.

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"Linked Data is one of the core pillars of the Semantic Web, also known as the Web of Data. The Semantic Web is about making links between datasets that are understandable not only to humans, but also to machines, and Linked Data provides the best practices for making these links possible. In other words, Linked Data is a set of design principles for sharing machine-readable interlinked data on the Web."

Platypus Wiki is a project to develop an enhanced Wiki Wiki Web with ideas borrowed from the Semantic Web. It offers a simple user interface to create wiki pages with metadata based on W3C standards. It uses RDF (Resource Description Framework), RDF Schema and OWL (Web Ontology Language) to create ontologies and manage metadata.Platypus Wiki is an ongoing open source project started on 23th December 2003. The project is actually hosted on SourceForge and licensed under GNU GPL.

W3C Validator Suite is a service providing a new integrated view for evaluating Web site quality.  W3C Validator Suite integrates Web standards conformance tools in a way that makes it easier than ever to keep your Web site compliant with the latest Web standards.

The AIFB Web Portal is the public Web site of the Institute of Applied Informatics and Formal Description Methods (AIFB) at Karlsruhe Institute of Technology. It uses Semantic MediaWiki to provide a highly customised Content Management System. The site provides content in two languages (German and English), and it offers rich views for browsing different kinds of data. The content of the AIFB Web Portal is regularly edited by most members of the institute, from secretary to professor, but it is not open for public editing.

UMBEL Web services are supported by the structWSF Web services framework. The latest version of the UMBEL ontology has been indexed by the structWSF instance, and gets exposed to the generic public through these services.

Extracting Structured Data from the Common Web Crawl More and more Websites have started to embed structured data describing products, people, organizations, places, events into their HTML pages. The Web Data Commons project extracts this data from several billion Web pages and provides the extracted data for download.

Semantic Radar is a semantic metadata detector for Mozilla Firefox. Available at Mozilla Add-ons site. It is a browser extension which inspects web pages for links to Semantic web metadata and informs about presence of it by showing an icon in browser's status bar. Currently it supports RDF autodiscovery (SIOC, FOAF, DOAP and any type) and RDFa metadata detection. New: Semantic Radar can now ping the Semantic web Ping Service when metadata are detected. This allows for a community based discovery of the Semantic web data.

Sindice - Data Web Services Billion pieces of reusable information can already be found across hundreds of millions Web pages which embed RDF and Microformats. Start consuming this data today with Sindice Data Web services.

Web IDs are world-wide "strong identifiers" that you and your software can use to precisely identify and distinguish concepts, even if they share the same names. For example: "Jaguar" can be used to refer to several distinct concepts (the animal, the car company, the musical artist, etc.) but each of them have different Web IDs. Whereas keywords are ambiguous, Web IDs are precise.

Linked Data is about using the Web to connect related data that wasn't previously linked, or using the Web to lower the barriers to linking data currently linked using other methods. More specifically, Wikipedia defines Linked Data as "a term used to describe a recommended best practice for exposing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF." This site exists to provide a home for, or pointers to, resources from across the Linked Data community.

The Semantic Web is a vision: the idea of having data on the Web defined and linked in a way, that it can be used by machines - not just for display purposes, but for using it in various applications. Many ongoing projects and efforts require Semantic Web technology,

Ground-breaking profiling, semantic search, navigation and optimization solutions. TextDigger offers the most intuitive, evolved, versatile and scalable semantic and linguistic profiling solutions for enriching your web-based content TextDigger has empowered businesses like yours to improve the findability of Internet and intranet content by providing scalable solutions for related search, automatic tagging, and semantic keyword generation. From web publishers, to e-commerce sites, to social networking and corporate enterprises, TextDigger's solutions leverage proprietary semantic technology to make your web pages easier to find, navigate and monetize.

Category:Semantic Web Companies From Wikipedia, the free encyclopedia Companies that embrace semantic Web technologies in their products. Pages in category "Semantic Web Companies"

OWL is a Web Ontology language. Where earlier languages have been used to develop tools and ontologies for specific user communities (particularly in the sciences and in company-specific e-commerce applications), they were not defined to be compatible with the architecture of the World Wide Web in general, and the Semantic Web in particular.

The OWL 2 Web Ontology Language, informally OWL 2, is an ontology language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents.

The OWL 2 Web Ontology Language, informally OWL 2, is an ontology language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents.

The Sematic Web Client Library represents the complete Semantic Web as a single RDF graph. The library enables applications to query this global graph using SPARQL- and find(SPO) queries. To answer queries, the library dynamically retrieves information from the Semantic Web by dereferencing HTTP URIs, by following rdfs:seeAlso links, and by querying the Sindice search engine. The library is written in Java and is based on the Jena framework. Contents

Semantic Web Conference Corpus - a.k.a. the Semantic Web Dog Food Corpus! Here you can browse and search information on papers that were presented, people who attended, and other things that have to do with the main conferences and workshops in the area of Semantic Web research.

SADI is a framework for discovery of, and interoperability between, distributed data and analytical resources. It combines simple, stateless, GET/POST-based Web Services with standards from the W3C Semantic Web initiative. The objective of SADI is to make it easy for data and analytical tool providers to quickly make their resources available on the Semantic Web with minimal disruption to their usual practices. SADI is quite a distinct "technology" in that there's nothing to it… literally! SADI avoids creating new technologies or non-standard Web "infrastructure" (e.g., message formats).