Existential Rules

From International Center for Computational Logic

Existential Rules

Course with SWS 0/2/0 (lecture/exercise/practical) in SS 2018



  • 0/2/0


Examination method

  • Term paper
  • Seminar presentation


Existential Rules are a knowledge representation formalism used in artificial intelligence and database theory. Their syntactic flexibility enables an easy integration of both semantic knowledge and databases. Syntactically close to Datalog rules, an important distinguishing feature is the possibility to describe individuals whose existence was not originally known, which is of great help for modeling purposes. On this seminar, we will discuss the limits of the expressivity of existential rules, as well as several existing techniques to effectively reason over decidable fragments of this language.

Research Opportunities

If interested, we can provide seminar attendees with follow-up research-related tasks that may be later developed into master's or bachelor's theses, and/or publications.

Schedule and Location

The weekly lecture session will take place on Wednesdays DS3 in room APB/E005.


Students will be required to produce an extended summary of a self-selected research paper (see the "Literature" tab) and then do a presentation on this work.


Most of the slides used in this seminar are based on slides used and created by Andreas Pieris and Michaël Thomazo. These slides were originally used in the ESSLLI 2015 Student Session.


Please, feel free to send me an email at david.carral@tu-dresden.de if you have any further questions.

Subscribe to events of this course (icalendar)

Lecture Syntax and Semantics DS3, April 11, 2018 in APB E005 File