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Datasets. LOD Cloud 2014. Software. Semantic Technologies, Linked Open Data. DBpedia Ontology. Semantic-mediawiki.org. OWL 2 Web Ontology Language Primer (Second Edition) Semantic University. Semantic University is the largest and most accessible source of educational material relating to semantics and Semantic Web technologies.

Semantic University

It includes: Lessons suitable to those brand new to the space. Comparisons, both high-level and in-depth, with related technologies, such as SQL, NoSQL and Big Data. Interactive, hands on tutorials. Untitled. Part I.

untitled

Getting Started Chapter 1. Introduction. OpenRDF.org: Home. Mereology. Mereology has been axiomatized in various ways as applications of predicate logic to formal ontology, of which mereology is an important part.

Mereology

A common element of such axiomatizations is the assumption, shared with inclusion, that the part-whole relation orders its universe, meaning that everything is a part of itself (reflexivity), that a part of a part of a whole is itself a part of that whole (transitivity), and that two distinct entities cannot each be a part of the other (antisymmetry). A variant of this axiomatization denies that anything is ever part of itself (irreflexive) while accepting transitivity, from which antisymmetry follows automatically.

Standard university texts on logic and mathematics are silent about mereology, which has undoubtedly contributed to its obscurity. History[edit] Semantic network. Typical standardized semantic networks are expressed as semantic triples.

Semantic network

History[edit] YAGO - D5: Databases and Information Systems (Max-Planck-Institut für Informatik) Overview YAGO is a huge semantic knowledge base, derived from Wikipedia WordNet and GeoNames.

YAGO - D5: Databases and Information Systems (Max-Planck-Institut für Informatik)

Currently, YAGO has knowledge of more than 10 million entities (like persons, organizations, cities, etc.) and contains more than 120 million facts about these entities. YAGO is special in several ways: The accuracy of YAGO has been manually evaluated, proving a confirmed accuracy of 95%. Every relation is annotated with its confidence value.YAGO combines the clean taxonomy of WordNet with the richness of the Wikipedia category system, assigning the entities to more than 350,000 classes.YAGO is an ontology that is anchored in time and space.

Word2vec - Tool for computing continuous distributed representations of words. This tool provides an efficient implementation of the continuous bag-of-words and skip-gram architectures for computing vector representations of words.

word2vec - Tool for computing continuous distributed representations of words.

These representations can be subsequently used in many natural language processing applications and for further research. The word2vec tool takes a text corpus as input and produces the word vectors as output. It first constructs a vocabulary from the training text data and then learns vector representation of words. Mappings.dbpedia. Freebase. Freebase is a large collaborative knowledge base consisting of metadata composed mainly by its community members.

Freebase

It is an online collection of structured data harvested from many sources, including individual 'wiki' contributions.[2] Freebase aims to create a global resource which allows people (and machines) to access common information more effectively. It was developed by the American software company Metaweb and has been running publicly since March 2007. Metaweb was acquired by Google in a private sale announced July 16, 2010.[3] Google's Knowledge Graph is powered in part by Freebase.[4] Freebase data is freely available for commercial and non-commercial use under a Creative Commons Attribution License, and an open API, RDF endpoint, and database dump are provided for programmers.

Overview[edit] Described by Tim O'Reilly upon their launch, "Freebase is the bridge between the bottom up vision of Web 2.0 collective intelligence and the more structured world of the semantic web. Visual Data Web - Visually Experiencing the Data Web. About. Five AKSW Papers at ESWC 2014 Hello World!

About

We are very pleased to announce that five of our papers were accepted for presentation at ESWC 2014. These papers range from natural-language processing to the acquisition of temporal data. Read more about "Five AKSW Papers at ESWC 2014" AKSW Colloquium “Current semantic web initiatives in the Netherlands” on Friday, March 14, Room P901 Current semantic web initiatives in the Netherlands: Heritage & Location, PiLOD 2.0 On Friday, March 14, at 10.00 a.m. in room P901, visiting researchers Tine van Nierop and Rein van ‘t Veer from the E&L will discuss, amongst several other semantic web initiatives in the Netherlands, two different projects: Heritage & Location (www.erfgoedenlocatie. Semantic University. Semanticweb.com - The Voice of Semantic Web Business.

Scardf - Scala RDF API. SweoIG/TaskForces/CommunityProjects/LinkingOpenData - W3C Wiki. News 2014-12-03: The 8th edition of the Linked Data on the Web workshop will take place at WWW2015 in Florence, Italy.

SweoIG/TaskForces/CommunityProjects/LinkingOpenData - W3C Wiki

The paper submission deadline for the workshop is 15 March, 2015. 2014-09-10: An updated version of the LOD Cloud diagram has been published. The new version contains 570 linked datasets which are connected by 2909 linksets. New statistics about the adoption of the Linked Data best practices are found in an updated version of the State of the LOD Cloud document. 2014-04-26: The 7th edition of the Linked Data on the Web workshop took place at WWW2014 in Seoul, Korea.

The workshop was attended by around 80 people. Project Description The Open Data Movement aims at making data freely available to everyone. SemWebCentral. Semanticweb.org. LDIF – Linked Data Integration Framework. CubicWeb - The Semantic Web is a construction game! — CubicWeb 3.14.4.

About WordNet - WordNet - About WordNet. RDF/OWL Representation of WordNet. Synonym - WordNet visualization using Force-Directed Graphs. Welcome to the UMBEL Web Site ! Linked data. An introductory overview of Linked Open Data in the context of cultural institutions.

Linked data

In computing, linked data (often capitalized as Linked Data) describes a method of publishing structured data so that it can be interlinked and become more useful. It builds upon standard Web technologies such as HTTP, RDF and URIs, but rather than using them to serve web pages for human readers, it extends them to share information in a way that can be read automatically by computers.

This enables data from different sources to be connected and queried.[1] Tim Berners-Lee, director of the World Wide Web Consortium, coined the term in a design note discussing issues around the Semantic Web project.[2] Principles[edit] Jena - Welcome to Jena. Web Ontology Language. OWL Web Ontology Language Overview.

W3C Recommendation 10 February 2004 New Version Available: OWL 2 (Document Status Update, 12 November 2009) The OWL Working Group has produced a W3C Recommendation for a new version of OWL which adds features to this 2004 version, while remaining compatible. Please see OWL 2 Document Overview for an introduction to OWL 2 and a guide to the OWL 2 document set. OWL Web Ontology Language Guide. W3C Recommendation 10 February 2004 New Version Available: OWL 2 (Document Status Update, 12 November 2009) The OWL Working Group has produced a W3C Recommendation for a new version of OWL which adds features to this 2004 version, while remaining compatible. Please see OWL 2 Document Overview for an introduction to OWL 2 and a guide to the OWL 2 document set.

SemanticWebTools - W3C Wiki. REDIRECT New SemanticWiki Tools Page As of 12:50, 14 January 2010, this page is no longer maintained and should not be changed. The content has been transferred to (Changes made here after the above date may not be reflected on the new page!) Please consult and possibly modify that page. Tools. This page gives an overview of software tools related to the Semantic Web or to semantic technologies in general. Due to the large amount of tools being created in the community, this site is always somewhat outdated. Contributions and updates are welcomed. See also: Tool Chains Adding your own Adding your own tool is as easy as creating a page. Do not forget to use a suitable category to classify the tool, otherwise it will not appear below. If your tool is an OWL 2 implementation or a RIF implementation not yet listed here, please consider to add it.

Sig.ma EE- Semantic Information Mashup Enterprise Edition. About. DBpedia is a crowd-sourced community effort to extract structured information from Wikipedia and make this information available on the Web. DBpedia allows you to ask sophisticated queries against Wikipedia, and to link the different data sets on the Web to Wikipedia data. Tools - Visual Data Web. More information on the DBpedia endpoint availability. Several tools have already been developed in the project that showcase the visual power of the Data Web. The following four tools are all implemented in the open source framework Adobe Flex. Resource Description Framework. RDF Primer. The Resource Description Framework (RDF) is a language for representing information about resources in the World Wide Web.

This Primer is designed to provide the reader with the basic knowledge required to effectively use RDF.