Alexander Koller

Professor of Computational Linguistics
Department of Language Science and Technology
(formerly Computational Linguistics and Phonetics)
Saarland University


I will teach a tutorial on "Graph-Based Meaning Representations: Design and Processing" with Stephan Oepen and Weiwei Sun at ACL 2019.

Welcome to my homepage. I am a professor of computational linguistics, which means that I am interested in computer systems that understand, produce, and translate human language, as well as in the mathematical and algorithmic theory underlying them.

Before coming back to Saarland University, I was professor of Theoretical Computational Linguistics at the University of Potsdam. I was also a postdoc at Columbia University and the University of Edinburgh.

My research interests are broad. They encompass coming up with clean mathematical models for natural language phenomena and efficient algorithms for solving useful problems in natural language processing. In particular, I have done quite a bit of research on computational semantics, grammar formalisms, and natural language generation (NLG).

On this website, you can find my publications, some of my recent talks (to the extent that I've had time to put them online), and some software that I've been involved in. You will also find links to my current and past courses. Of my past teaching, I'm particularly proud of the talking robots projects I supervised together with Geert-Jan Kruijff (see a video).


Fachrichtung Sprachwissenschaft und Sprachtechnologie
Universitt des Saarlandes
Campus C7.2
D-66123 Saarbrcken, Germany
office: Campus C7.2, Room 1.09
phone: +49 681 302 4345
secretary (Gabriele Reibold): +49 681 302 4344
email: koller at coli uni-saarland de