Group Photo Computer Science Summer Camp 2019

Julien Klaus

Group Photo Computer Science Summer Camp 2019
Image: Anne Günther (University of Jena)
Theoretical Computer Science II
Julien Klaus
Julien Klaus
Room 3312
Ernst-Abbe-Platz 1-2
07743 Jena

Research Projects

  • Lina: Mapping Linear Algebra Expressions to Efficient Code
  • Convexity Certificates: Determining Convexity for Scalar-Valued Functions over Vectors
  • ParsGen: Generating Parser Code out of EBNF Grammars


  • J. Klaus, M. Blacher, J. Giesen, P. Rump and K. Wiedom
    Compiling Linear Algebra Expressions into Efficient Code. Proceedings of the 22nd International Conference on Computational Science (ICCS), 2022 accpeted
  • Joachim Giesen and Julien Klaus and Sören Laue and Ferdinand Schreck
    Visualization Support for Developing a Matrix Calculus Algorithm: A Case Study. Computer Graphics Forum, 2019 (
  • Mark Blacher, Joachim Giesen, Sören Laue, Julien Klaus, Matthias Mitterreiter
    Fast Entity Resolution With Mock Labels and Sorted Integer Sets. Proceedings of the 2nd International Workshop on Challenges and Experiences from Data Integration to Knowledge Graphs co-located with 46th International Conference on Very Large Data Bases, 2020 (
  • Mark Blacher, Joachim Giesen, Sören Laue, Julien Klaus, Viktor Leis
    Machine Learning, Linear Algebra, and More: Is SQL All You Need? Proceedings of the Conference on Innovative Data Systems Research (CIDR), 2022 (

Supervised Student Theses

  • Parsergenerierung aus EBNF Grammatiken, 2021
  • Certifying Convexity Using a Positivity Calculus, 2021
  • Compiling Probabilistic Programs into Sum-Product Networs, 2020
  • Using the dual problem of Neural Networks for probabilistic modeling of classification problems, 2020
  • Automatische Generierung von Elementadressen für Objekt-Repositories in der Testautomatisierung, 2020
  • Algorithms on Graph Triangulation, 2019
  • Interaktive Konstruktion von Tensorausdrücken, 2018
  • Rendering Tensor Expressions, 2018
  • Construction of a Graphical Tensor Language, 2017

Other Projects

Sommercamp 2019 Interview