Knowledge Graphs

From International Center for Computational Logic

Knowledge Graphs

Course with SWS 2/2/0 (lecture/exercise/practical) in WS 2022

Knowledge graphs are becoming an important paradigm in industry and research, with applications including prominent examples such as Google's own Knowledge Graph, Wikipedia's knowledge base sister Wikidata, and numerous artificial intelligence projects from Alexa to Siri. Meanwhile, companies are exploring the use of their own enterprise knowledge graphs for improving internal knowledge management.

With so many facets, knowledge graphs are a cross-cutting topic in computer science that involves aspects of data management (graph databases, file formats), publication (exchange formats, data integration), knowledge organisation (constraints, ontologies), and advanced analytics (expressive query languages, graph data mining). On each of these levels, there is some interesting theory and some interesting technology to be learned. This course will cover a colourful mix of technologies and methods related to the use of graphs for data analysis, knowledge representation, and data management.

Registration

The course generally does not require a special registration and there is no limit for participants. However, you need to enroll in the OPAL course for one of the exercise sessions. Additionally, students in programmes that use the Selma system (esp. students in CMS Master) will need to register there to obtain credits. Most of the materials will be freely available world-wide. Live sessions (especially tutorials) are restricted to students of TU Dresden.

Examinations

  • The type of the examination depends on the study programme (written examination for CMS, oral examination otherwise).
  • For CMS students, the written examination will be on Wednesday, 2023-03-01, from 09:20—10:50, in POT/351. Make sure you are registered in Selma. You do not need to contact us.
  • For all other students, we have reserved two dates for the oral examinations. As usual, you should book a date with our secretary after you have officially enrolled in your respective examination office/system:
    • Tuesday, 2023-02-14, and
    • Friday, 2023-03-03.

Schedule and Location

The lecture will adopt a hybrid format. Lectures will be published as videos, while exercises will be in-person.

All dates are published on this page (see Dates & Materials above)

  • Lecture sessions: published as videos, see Dates & Materials above
  • Exercise session: two groups, enroll via OPAL.
    • Tuesdays, DS3 (11:10 to 12:40) in APB E005
    • Tuesdays, DS5 (14:50 to 16:20) in APB E005
  • The first exercise sessions will take place on Tuesday, 2022-10-18. There will be no exercise sessions on Tuesday 2022-10-11.
  • A Q&A session will take place on Tuesday, 2023-02-07, during DS5 (14:50 to 16:20), in APB E005 (see below), where we will discuss, among other questions, the mock exam.
  • Important: Stay informed about current covid-19 regulations of TU Dresden.
A Matrix chat room for discussions is available. Selected material is published in a GitHub repository.

Subscribe to events of this course (icalendar)

Lecture 1. Introduction and Welcome DS3, October 11, 2022 in APB E005 File
Lecture 2. The Resource Description Framework RDF DS2, October 18, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 0. Introduction to Python DS3, October 18, 2022 in APB E005 File
Exercise 0. Introduction to Python DS5, October 18, 2022 in APB E005 File
Lecture 3. Modelling in RDF / SPARQL Basics DS2, October 25, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 1. Getting to Know Graphs and the Resource Description Framework DS3, October 25, 2022 in APB E005 File
Exercise 1. Getting to Know Graphs and the Resource Description Framework DS5, October 25, 2022 in APB E005 File
Lecture 4. Wikidata DS2, November 1, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 2. RDF Modelling DS3, November 1, 2022 in APB E005 File
Exercise 2. RDF Modelling DS5, November 1, 2022 in APB E005 File
Lecture 5. Advanced Features of SPARQL DS2, November 8, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 3. SPARQL and Wikidata DS3, November 8, 2022 in APB E005 File
Exercise 3. SPARQL and Wikidata DS5, November 8, 2022 in APB E005 File
Lecture 6. SPARQL Semantics DS2, November 15, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 4. More SPARQL and Wikidata DS3, November 15, 2022 in APB E005 File
Exercise 4. More SPARQL and Wikidata DS5, November 15, 2022 in APB E005 File
Lecture 7. Expressive Power and Complexity of SPARQL DS2, November 22, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 5. Advanced SPARQL DS3, November 22, 2022 in APB E005 File
Exercise 5. Advanced SPARQL DS5, November 22, 2022 in APB E005 File
Lecture 8. Limits of SPARQL / Datalog DS2, November 29, 2022 in Video File
Video 1 Video 2
Exercise 6. More Advanced SPARQL DS3, November 29, 2022 in APB E005 File
Exercise 6. More Advanced SPARQL DS5, November 29, 2022 in APB E005 File
Lecture 9. Rules for Querying Graphs DS2, December 6, 2022 in Video File
Video 1 Video 2
Exercise 7. Expressivity of SPARQL DS3, December 6, 2022 in APB E005 File
Exercise 7. Expressivity of SPARQL DS5, December 6, 2022 in APB E005 File
Lecture 10. Property Graph DS2, December 13, 2022 in Video File
Video 1 Video 2 Video 3
Exercise 8. Datalog & Rulewerk DS3, December 13, 2022 in APB E005 File
Exercise 8. Datalog & Rulewerk DS5, December 13, 2022 in APB E005 File
Lecture 11. Querying Property Graphs with Cypher DS2, December 20, 2022 in Video File
Video 1 Video 2
Exercise 9. Datalog, Rulewerk, and Property Graph DS3, December 20, 2022 in APB E005 File
Exercise 9. Datalog, Rulewerk, and Property Graph DS5, December 20, 2022 in APB E005 File
Lecture 12. Knowledge Graph Quality DS2, January 10, 2023 in Video File
Video 1 Video 2
Exercise 10. Cypher DS3, January 10, 2023 in APB E005 File
Exercise 10. Cypher DS5, January 10, 2023 in APB E005 File
Lecture 13. Centrality DS2, January 17, 2023 in Video File
Video 1 Video 2 Video 3
Exercise 11. Knowledge Graph Quality and Validation DS3, January 17, 2023 in APB E005 File
Exercise 11. Knowledge Graph Quality and Validation DS5, January 17, 2023 in APB E005 File
Exercise 12. Centrality Measures DS3, January 24, 2023 in APB E005 File
Exercise 12. Centrality Measures DS5, January 24, 2023 in APB E005 File
Consultation Questions & Answers DS5, February 7, 2023 in APB E005 File


Calendar