Semantic Web Resources

Download the old exams for practice.

This is a collection of links that I have found useful at one point or other while teaching Semantic Web. This is by no means a complete listing of Semantic Web-related articles. The links may be outdated as I do not check them often.

Semantic Web Vision

• Tim Berners-Lee, James Hendler and Ora Lassila: The Semantic Web (2001)
• Nigel Shadbolt, Wendy Hall and Tim Berners-Lee: The Semantic Web Revisited (2006)
• Lee Feigenbaum, Ivan Herman, Tonya Hongsermeier, Eric Neumann and Susie Stephens: The Semantic Web in Action (2007)
• Getting Started with Semantics (Cambridge Semantics)

URI, Unicode, UTF-8

• Tim Berners-Lee: What is a good URI? (1998)
• Joel Spolsky: The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) (2003)
• Unicode Consortium
• Unicode Code Charts

XML, XMLSchema, Namespaces

• XML Validator
• W3C Recommendation for XML 1.0 (2008)
• W3C XML pages
• XML Tutorial (W3schools)
• XML Tutorial (by Tom Myer)
• W3C Recommendation for XML Namespaces (2009)
• XML Namespaces Tutorial
• XML Namespaces FAQ
• W3C Recommendation for XML Schema 1.1 data types (2012)

RDF

• RDF Validator
• W3C Recommendation for RDF 1.1 (2014)
• W3C Recommendation for RDF 1.1 XML Syntax (2014)
• W3C Recommendation for RDF 1.1 Turtle Syntax (2014)
• W3C RDF pages
• W3C RDF Wiki page (with links to RDF tools)
• RDF Primer (W3C)
• RDF Model Tutorial (LinkedDataTools)
• RDF/XML Tutorial (LinkedDataTools)
• Motivation for RDF (W3C Recommendation for RDF 1.0, 2004)
• What’s New in RDF 1.1

RDFS

• W3C Recommendation for RDFS 1.1 (2014)
• RDFS/OWL Tutorial (LinkedDataTools)

OWL, Ontologies and Ontology Engineering

• Protege Ontology Editor
• OWL Validator
• OWL 2 W3C Recommendation (2012)
• W3C OWL pages
• OWL 2 Primer (W3C)
• OWL 2 Primer (W3C Wiki)
• RDFS/OWL Tutorial (LinkedDataTools)
• OWL 2 Web Ontology Language New Features and Rationale
• Guide to OWL 2 for OWL 1 users
• Natalya F. Noy and Deborah L. McGuinness: Ontology Development 101 (2001)
• Matthew Horridge: A Practical Guide To Building OWL Ontologies (2011)
• Alan Rector, Nick Drummond, Matthew Horridge, Jeremy Rogers, Holger Knublauch, Robert Stevens, Hai Wang, Chris Wroe: OWL Pizzas: Practical Experience of Teaching OWL-DL (2004)
• Defining N-ary Relations on the Semantic Web
• VOWL Ontology visualization

Reasoning, Description Logics and Tableaux

• Markus Krötzsch, Frantisek Simancik, Ian Horrocks: A Description Logic Primer (2013)
• Franz Baader and Werner Nutt: Basic Description Logics (2003)
• Enrico Franconi: Tutorial Course on Description Logics (2002)
• Description Logics group page

SPARQL

• Twinkle
• W3C Recommendation for SPARQL Query Language 1.1 (2013)
• W3C SPARQL pages
• SPARQL Tutorial (LinkedDataTools)
• SPARQL Tutorial (myExperiment)

Semantic Web Agents

• Peter Norvig and Stuart J. Russell: Artificial Intelligence: A Modern Approach (2010, Chapters 2, 7)
• James Hendler: Agents and the Semantic Web (2001)

Encryption, Digital Signatures, Trust

• Understanding Cryptography (Chapters 6, 7, 10)
• W3C Recommendation for XML Encryption (2002)
• W3C Recommendation for XML Signature (2013)
• Jennifer Golbeck: Computing and Applying Trust in Web-based Social Networks (2005, Chapters 3, 6.3, 7)
• The Trust Project (project of above thesis)
• Trust and Security Resource Guide

Semantic Search

Some semantic search engines (in the broadest sense):

• CleverSearch (augment traditional keyword search by query expansion with WordNet)
• Yummly (faceted search on recipe data)
• Evi (question-answering of natural language queries)
• PizzaFinder (querying as problem solving, pizza ontology)
• Wine Agent (querying as problem solving, wine ontology)
• Broccoli (class-selection and property restriction, returns entities from DBpedia data)
• iSparql (GUI to create SPARQL queries)
• Relfinder (select entites, find relations between them)
• SWSE (keyword-based entity search on DBpedia data) [appears to be down]
• Ask The Wiki (keyword search and visual query selection, KIT institute data) [appears to be down]

More general links about semantic search:

• Eetu Mäkelä: Survey of Semantic Search Research (2005)
• Hannah Bast: Semantische Suche (2013)
• Phill Midwinter: Is Google a Semantic Search Engine? (2007)

Semantic Web Applications and Resources

• W3C Recommendation for RDFa (RDFa primer, RDFa use cases)
• W3C Recommendation for GRDDL (GRDDL primer, GRDDL use cases)
• CreativeCommons Rights Expression Language (RDF file)
• FOAF project (search FOAF, create a FOAF profile)
• OpenCYC
• Geonames ontology
• Gene Ontology Consortium
• The Open Biological and Biomedical Ontologies Foundry
• DBPedia
• YAGO
• Ontology of units of Measure
• Quantities, Units, Dimensions and Data Types (QUDT) Ontologies
• Unified Code for Units of Measure ontology (UCUM)
• Case Study: Use of Semantic Web Technologies on the BBC Web Sites
• Semantic Media Wiki
• Linking Open Data W3C group
• Linked Data
• Linked Open Data cloud
• Sindice
• GoPubMed

Semantic Web and NLP

• OWLExporter
• TextToOnto
• Working Group on Open Data in Linguistics
• Ontology-Lexica Community Group
• Linked Data in Linguistics Workshop@LREC-2014
• NLP & DBpedia Workshop@ISCW 2014
• Linked Data for Information Extraction (LD4IE) Workshop@ISCW 2014
• Natural Language Interfaces for Web of Data (NLIWoD) Workshop@ISCW 2014
• Workshop Semantic Web and Sentiment Analysis Workshop@ESWC 2014
• BabelNet goes to the Multilingual Semantic Web Workshop@ESWC 2014
• Question Answering over Linked Data: Challenges, Approaches & Trends Tutorial@ESWC 2014
• Social Web: Where are the Semantics? Tutorial@ESWC 2014
• OWL to English: a tool for generating organised easily-navigated hypertexts from ontologies Tutorial@ESWC 2014

Software and Webservices (for search engines see above)

• XML Validator
• RDF Validator
• OWL Validator
• Protege Ontology Editor
• Sesame triple store
• Jena Java framework for semantic web applications
• Twinkle SPARQL editor

Visualizations

• VOWL Ontology visualization
• LodLive visualization of Linked-Open-Data