Semantic Web

Winter 2015/2016
Wiltrud Kessler
Monday 15:45 - 17:15
Pfaffenwaldring 5b, V 5.01
2 SWS / 3 ECTS
[LSF] [ILIAS]

News

Schedule and Resources

Resources (slides, examples and exercises) will be made available here. Please submit your solutions to the exercises in ILIAS.

Bring your computer to sessions marked project (P) or exercise/Uebung (U). Before the first project session, please install Protege Ontology Editor.

Day Topic Resources Chapters More references
Block 1 "Semantic Web Basics"
19.10. (V) The Semantic Web Vision Slides [HKRS08] Ch.1
[HKR09] Ch.1
The Semantic Web (2001)
The Semantic Web Revisited (2006)
The Semantic Web in Action (2007)
Application example: Relfinder
26.10. (V) Semantic Web Basis Technologies Slides
pets.xml
[HKRS08] Ch.2
[HKR09] App.A
Unicode Code Charts
XML Validator
XML Schema data types
Linking Data with RDF Slides
pets.rdf
pets.ttl
[HKRS08] Ch.3
[HKR09] Ch.2
RDF format converter
RDF Validator
Visualization: LodLive
2.11. (V) Light-weight Semantics with RDFS Slides
pets_rdfs.rdf
pets_rdfs.ttl
[HKRS08] Ch.4
[HKR09] Ch.3
9.11. (P) Project Session 1 Slides [HKR09] Ch.8
16.11. (U) Exercise Session 1
Deadline: Wednesday November 11th, 23:59
Sheet 1
Template for 1(a-c), 1(d)
Block 2 "Ontologies and Logic"
23.11. (V) Ontologies and OWL Slides
pizza_small.ttl
pizza_small.owl
pizza.owl
[HKRS08] Ch.5
[HKR09] Ch.4
Visualiztion: VOWL
30.11. (V) Reasoning Slides [HKRS08] Ch.6
[HKR09] Ch.5
Basic Description Logics
7.12. (P) Project Session 2 Slides
Slides
[HKR09] Ch.8 Protege Ontology Editor
14.12. (U) Exercise Session 2
Deadline: Wednesday December 9th, 23:59
Sheet 2
Template
Cheat sheet
Block 3 "The Upper Layers"
11.1. (V) SPARQL Slides [HKRS08] Ch.7
[HKR09] Ch.7
DBPedia SPARQL web frontend
18.1. (V) Semantic Web Agents Slides Artificial Intelligence: A Modern Approach (Ch. 2, 7)
Agents and the Semantic Web (2001)
Trust Slides Understanding Cryptography (Ch. 6, 7, 10)
The Trust Project
25.1. (V + P) Semantic Web Applications Slides [HKR09] Ch.9 RDFa recommendation
CreativeCommons ontology
FOAF
GRDDL recommendation
Geonames
DBPedia
LOD cloud
Sindice
GoPubMed
Evi
Broccoli
Project Session 3
Miniproject deadline: Friday February 5th, 23:59
Twinkle
1.2. (U) Exercise Session 3
Deadline: Wednesday January 27th, 23:59
Sheet 3
Template
Cheat sheet
16.2. (Tue) Practice Exam
(Tuesday, 11 AM, ca. 60 min, V5.02)
23.2. (Tue) Written Exam
(Tuesday, 11 AM, ca. 60 min, V5.02)

The column "Chapters" refers to the chapters in the basic books (listed below) that discuss the class topic. It may be useful to read the corresponding chapter in one of the books to better understand the course content. More specific literature, links and tools for some topics can be found in the column "More references" and on my Semantic Web resources page. This is not required to pass the course, but may be interesting background reading for those interested. Additional links will be added during the course, also all the basic books contain a lot of references.

Additional slidesets on topics that we discussed in class ("muddiest point" explanations, leftovers from last years):

Additional slidesets on topics not discussed in class (leftovers from last years):

Course Description

The Semantic Web is an initiative to make information in the web accessible to machines. In the first part of the course, basic concepts and technologies of the Semantic Web will be introduced (XML, RDF, RDFS). The second part focuses on ontologies, OWL for describing ontologies, ontology engineering, and reasoning with ontologies. In the third part, the query language SPARQL is intruduced and some applications and research topics inside the Semantic Web will be mentioned, e.g., semantic agents, semantic search or ontology learning. Apart from theoretical classes, the course will include practice sessions.

Basic text books (both cover basically parts 1 and 2 of this course):

There are no particular prerequesites. A basic understanding of predicate logic is helpful (to the extent that is taught in the basic class of logic in the first year of Diplom and Bachelor).

Organizational Information

The course is open for students of

M.Sc. CL students who take the course as part of a concentration will have their exam as part of the oral exam for the concentration.
For all other students there will be a written exam of 60 minutes in the break after semester ends. The final grade for the course will be the grade you get in the exam.

This is a "V+PL" course. To get admitted to the exam, you will have to pass the "Vorleistung". Requirements to pass the "Vorleistung":

  1. Get at least 50% of the points in the mandatory exercises (there will be 3 exercise sheets with a maximum of 20 points each).
  2. Present at least one exercise in in one of the exercise sessions.
  3. Hand in the mandatory part of the course miniproject.

Exam-related Information

The written exam will be similar to the exercises done in the practice sessions plus a few more theoretical questions. You will be provided with a "cheat sheet" in case you need to write RDF, OWL or SPARQL, so that you do not need to memorize namespace URLs or the exact spelling of owl:equivalentProperty. You can find some old exams on this page.

The oral exam for the concentration will basically include the same topics as the written exam, but with less focus on exact syntax and more about understanding.

What you should be able to do in the exam:

What I will not ask: