Linked Data - Design Issues

Linked Data | Linked Data - Connect Distributed Data across the Tim Berners-Lee Biography A graduate of Oxford University, Tim Berners-Lee invented the World Wide Web, an internet-based hypermedia initiative for global information sharing while at CERN, the European Particle Physics Laboratory, in 1989. He wrote the first web client and server in 1990. His specifications of URIs, HTTP and HTML were refined as Web technology spread. He is the 3Com Founders Professor of Engineering in the School of Engineering with a joint appointment in the Department of Electrical Engineering and Computer Science at the Laboratory for Computer Science and Artificial Intelligence ( CSAIL) at the Massachusetts Institute of Technology (MIT) where he also heads the Decentralized Information Group (DIG). He is the Director of the World Wide Web Consortium (W3C), a Web standards organization founded in 1994 which develops interoperable technologies (specifications, guidelines, software, and tools) to lead the Web to its full potential. In 2001 he became a Fellow of the Royal Society. Fax:

Linked Data Platform 1.0 Introduction Many HTTP applications and sites have organizing concepts that partition the overall space of resources into smaller containers. Blog posts are grouped into blogs, wiki pages are grouped into wikis, and products are grouped into catalogs. Each resource created in the application or site is created within an instance of one of these container-like entities, and users can list the existing artifacts within one. To which URLs can I POST to create new resources? This document defines the representation and behavior of containers that address these issues. This document includes a set of guidelines for creating new resources and adding them to the list of resources linked to a container. The following illustrates a very simple container with only three members and some information about the container (the fact that it is a container and a brief title): Example 1 Example 2 It would be helpful to be able to use LDP patterns to manage the assets and liabilities-related triples.

LinkedData - ESW Wiki LinkedData is to spreadsheets and databases what the Web of hypertext documents is to word processor files. Use URIs as names for things Use HTTP URIs so that people can look up those names. When someone looks up a URI, provide useful information. Include links to other URIs. so that they can discover more things groupage cargo service. Linked Data Presentations: Writings: Workshop Series about Linked Data at the WWW conferences Other Workshops about Linked Data 1st International Workshop on Consuming Linked Data (COLD 2010) at ISWC 2010 Community: Examples of Linked Data: See DataSets Client side tools: Server side tools: dbview.py by DanConnolly, Rob Crowell and TimBL Virtuoso - "Sponger" component of Virtuoso's SPARQL Engine, RDF Views of SQL, and the HTTP engine's Linked Data Deployment features D2R Server P2R - expose Prolog knowledge base as linked data (when bundled with UriSpace) SPARQL2XQuery - Bridging the Gab between the XML and the Semantic Web Worlds. Live Demos: Meetups:

Dereferenceable Uniform Resource Identifier A dereferenceable Uniform Resource Identifier or dereferenceable URI is a resource retrieval mechanism that uses any of the internet protocols (e.g. HTTP) to obtain a copy or representation of the resource it identifies. In the context of traditional HTML web pages, this is the normal and obvious way of working: A URI refers to the page, and when requested the web server returns a copy of it. In other non-dereferenceable contexts, such as XML Schema, the namespace identifier is still a URI, but this is simply an identifier (i.e. a namespace name). There is no intention that this can or should be dereferenced. There is even a separate attribute, schemaLocation, which may contain a dereferenceable URI that does point to a copy of the schema document. In the case of Linked Data, the representation takes the form of a document (typically HTML or XML) that describes the resource that the URI identifies. Background[edit] Formats[edit] Hash URI example[edit] Slash URI example[edit] Summary[edit]

C Linked Data Platform Working Group Charter The mission of the Linked Data Platform (LDP) Working Group is to produce a W3C Recommendation for HTTP-based (RESTful) application integration patterns using read/write Linked Data. This work will benefit both small-scale in-browser applications (WebApps) and large-scale Enterprise Application Integration (EAI) efforts. It will complement SPARQL and will be compatible with standards for publishing Linked Data, bringing the data integration features of RDF to RESTful, data-oriented software development. Introduction This group is based on the idea of combining two Web-related concepts to help solve some of the long-standing challenges involved in building and combining software: RDF, the Resource Description Framework, is a W3C Recommended general technique for conveying information. The Linked Data Platform is envisioned as an enterprise-ready collection of standard techniques and services based on using RESTful APIs and the W3C Semantic Web stack. Scope Technical Issues Deliverables

Semantic Web - The Voice of Semantic Web Business Toward a Basic Profile for Linked Data Update In March 2012, IBM and its partners submitted the Linked Data Basic Profile specification to W3C. Motivation There is interest in using Linked Data technologies for more than one purpose. Rational software is a vendor of software development tools, particularly those that support the general software development process, such as bug tracking, requirements management, and test management tools. Implement some sort of application programming interface (API) for each application, and then, in each application, implement "glue code" that exploits the APIs of other applications to link them together.Design a single database to store the data of multiple applications, and implement each of the applications against this database. A discussion of the failings of each of these approaches is beyond the scope of this article, but it is fair to say that, although each one of those approaches has its adherents and can point to some successes, none of them is wholly satisfactory. Resources Link

Linked Data Patterns SweoIG/TaskForces/CommunityProjects/LinkingOpenData - ESW Wiki News 2014-12-03: The 8th edition of the Linked Data on the Web workshop will take place at WWW2015 in Florence, Italy. 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. Project Description The Open Data Movement aims at making data freely available to everyone. The goal of the W3C SWEO Linking Open Data community project is to extend the Web with a data commons by publishing various open data sets as RDF on the Web and by setting RDF links between data items from different data sources. Clickable version of this diagram. Project Pages Meetings & Gatherings See Also Demos 1. 2.

How to publish Linked Data on the Web This document provides a tutorial on how to publish Linked Data on the Web. After a general overview of the concept of Linked Data, we describe several practical recipes for publishing information as Linked Data on the Web. This tutorial has been superseeded by the book Linked Data: Evolving the Web into a Global Data Space written by Tom Heath and Christian Bizer. The goal of Linked Data is to enable people to share structured data on the Web as easily as they can share documents today. The term Linked Data was coined by Tim Berners-Lee in his Linked Data Web architecture note. Applying both principles leads to the creation of a data commons on the Web, a space where people and organizations can post and consume data about anything. The Web of Data can be accessed using Linked Data browsers, just as the traditional Web of documents is accessed using HTML browsers. The glue that holds together the traditional document Web is the hypertext links between HTML pages. Literal Triples 3.

Linked Data: Evolving the Web into a Global Data Space Open Data An introductory overview of Linked Open Data in the context of cultural institutions. Clear labeling of the licensing terms is a key component of Open data, and icons like the one pictured here are being used for that purpose. Overview[edit] The concept of open data is not new; but a formalized definition is relatively new—the primary such formalization being that in the Open Definition which can be summarized in the statement that "A piece of data is open if anyone is free to use, reuse, and redistribute it — subject only, at most, to the requirement to attribute and/or share-alike. Open data is often focused on non-textual material[citation needed] such as maps, genomes, connectomes, chemical compounds, mathematical and scientific formulae, medical data and practice, bioscience and biodiversity. A typical depiction of the need for open data: Creators of data often do not consider the need to state the conditions of ownership, licensing and re-use. I want my data back. Closed data[edit]