Websites

The main page of a wiki with large body of W3C information. The goal of this wiki is to provide a "first stop" for more information on Semantic Web technologies, in particular on Semantic Web Standards published by the W3C.

Jena Tutorials

The following tutorials take a step-by-step approach to explaining aspects of RDF and linked-data applications programming in Jena. For a more task-oriented description, please see the getting started guide.

• RDF core API tutorial
• SPARQL tutorial
• Using Jena with Eclipse
• Manipulating SPARQL using ARQ

click here

LargeTripleStores

This page is for references to signed quotes of deployments of large triples stores rather than predictions of what some software might scale to.

How is a UUID / GUID made

HDF4 Specification and Developer�s Guide

The Hierarchical Data Format (HDF) was designed to be an easy, straight-forward, and selfdescribing

means of sharing scientific data among people, projects, and types of computers. An

extensible header and carefully crafted internal layers provide a system that can grow as scientific

data-handling needs evolve.

Introduction to HDF5

Hierarchical Data Format is the name of a file format and libraries designed to store and organize large amounts of numerical data. For example time series of measured process values.

Web Authorization Protocol (OAuth)

The OAuth 2.0 authorization framework enables a third-party application to obtain limited access to an HTTP service, either on behalf of a resource owner by orchestrating an approval interaction between the resource owner and the HTTP service, or by allowing the third-party application to obtain access on its own behalf.

Content negotiation with hash URIs

A weblog by Richard Cyganiak

Strategies for Building Semantic Web Applications

A set of strategies for building Semantic Web / Linked Data applications based on criteria such as the application domain and relevant tools plus supporting information such as App Stores where the applications can be sold.

RDF Validation Workshop Report -

Practical Assurances for Quality RDF Data, 10-11 September 2013, Cambridge, MA, USA

The RDF Validation Workshop drew 27 participants from industry, government and academia. There was consensus on the need for:

• Declarative definition of the structure of a graph for validation and description.
• Extensible to address specialized use cases.
• A mechanism to associate descriptions with data.

Publications

A 4-Dimensionalist Mereotopology

by John G. Stell and Matthew West

A formal ontology within the four dimensionalist (4D) paradigm, showing how the algebraic description of spatial mereotopology can be enriched to provide a mereotopology in which the entities are spatio-temporal, rather than spatial, regions. With the 4D approachit is natural to identify a period of time with all of space during that time, and thus to model temporal relations by relations between spatio-temporal regions.

Mathematical Background  

by John F. Sowa

Brief introductions to:

Sets, Bags, and Sequences | Functions | Lambda Calculus | Graphs | Relations | Representing Relations by Graphs | Lattices | Propositional Logic | Predicate Logic | Axioms and Proofs | Formal Grammars | Game Graphs | Model Theory | References

http://www.jfsowa.com/logic/math.htm

The Open Logic Text  

by the Open Logic Project

An open-source, collaborative textbook of formal metalogic and formal methods, starting at an intermediate level (i.e., after an introductory formal logic course). Though aimed at a non-mathematical audience (in particular, students of philosophy and computer science), it is rigorous.

JORD ISO 15926 RDS ID Requirements & Implementation Specification

Defines fundamental requirements and implementation conventions adopted by JORD for identification of reference data concerned with both its management and its use. As such this specification forms a part of the requirements for the JORD PCA RDS.

Operations and Maintenance Information Needs Survey - Results

Documents results of a survey conducted by the FIATECH Lifecycle Data Management (LCDM) project�s task force on Operations and Maintenance Information Needs.

ISO 15926 - Original purpose and possible future

Temporal Parts

Position Paper: Deficiencies of World Wide Web Architecture

The World Wide Web is becoming global communication medium. However it was originally designed as a hyper-media system for static content. The original architecture of World Wide Web exhibits problems when applied to the current dynamic environment.

RDF Needs Annotations

Position Paper: While the current mechanism of reification in RDF is without semantics and widely considered inappropriate and cumbersome, some form of reification � speaking about triples themselves � is needed in RDF for many reasonable applications: in particular, reification allows for enhancing triples with annotations relating to provenance, spatio-temporal validity, degrees of trust, fuzzy values and/or other contextual information.

On RDF Validation

YouTube

A video by Bob DuCharme that is helpful for people who are new to SPARQL.

Books

Learning SPARQL, 2nd Edition

Querying and Updating with SPARQL 1.1

by Bob DuCharme

Publisher: O'Reilly Media

Released: July 2013

ISBN 978-1-449-37143-2

Gain hands-on experience with SPARQL, the RDF query language that�s bringing new possibilities to semantic web, linked data, and big data projects. This updated and expanded edition shows you how to use SPARQL 1.1 with a variety of tools to retrieve, manipulate, and federate data from the public web as well as from private sources.

Linked Data: Evolving the Web into a Global Data Space

by Tom Heath and Christian Bizer

Publisher: Morgan & Claypool Publishers

Released: 2011

ISBN 978-1-60845-430-3

There is a growing desire for direct access to raw data not currently available on the Web or bound up in hypertext documents. Linked Data provides a publishing paradigm in which not only documents, but also data, can be a first class citizen of the Web, thereby enabling the extension of the Web with a global data space based on open standards - the Web of Data.

Discussion Papers

This ppt file which is working towards gaining consensus on the P&ID implementation model. The minimum specification required for the graphical content of a P&ID. Submit any thoughts on terminology, structure etc that are not suitable.  It is understood that the content of a P&ID system may be larger than its graphical representation but we should be able to agree on the basic framework.