Hasso-Plattner-Institut
Prof. Dr. h.c. Hasso Plattner
  
 

Johannes Huegle

Research Assistant, PhD Student

Contact Information

  • Phone: +49 (331) 5509-1320
  • Fax: +49 (331) 5509-579
  • Email: johannes.huegle(at)hpi.de
  • Address: August-Bebel-Str. 88, 14482 Potsdam
  • Room: V-2.05 (Campus II)

Research

Causal Structure Learning in Heterogeneous Settings

Causal structure learning (CSL), i.e., the derivation of the causal graphical model representing the functional relationships between variables of a system from observational data, is crucial to many domains. However, while current methods of CSL assume the same data type or a specific family of functional relationships, most real-world scenarios incorporate heterogeneous data, e.g., mixed data. Moreover, as the underlying functional causal model and corresponding consistent model-based dependence measures are mostly unknown in advance the selection of inappropriate methods for CSL yields to incorrect results.

As part of our research on Data-Driven Causal Inference we address these challenges through the introduction of information theoretic statistical methods and the development of a modular pipeline for experimental evaluation of CSL from observational data. We demonstrate the applicability of our approaches on both synthetic and real-world settings with regard to the consistency of the estimated underlying causal structures.

Keywords: Causal Structure Learning, Causal Inference, Machine Learning in Real-World Scenarios, Computational Statistics

Current Projects

  • Data-Driven Causal Inference
    • Causal Structure Learning in Heterogeneous Settings
  • Application Scenarios with Cooperation Partners
    • Mechanical Engineering
    • Automotive Production

Teaching Activities

Lectures:

  • Causal Inference - Theory and Applications in Enterprise Computing (SS18, SS19, SS20)
  • Trends and Concepts in the Software Industry I (SS17)
  • Trends and Concepts in the Software Industry II (WS16/17)

Seminars:

Master Projects:

  • A Benchmark Suite for Causal Inference or “How to model a complex world?” (WS20/21)
  • Causal Reasoning on Enterprise Data (WS19/20)
  • Design and Implementation of a Causal Inference Pipeline (WS18/19)

Bachelor Projects:

 

Education

Master's Degree in Mathematics, Heidelberg University, 2017, Focus: Statistics and Probability Theory, Thesis: "Asymptotics for Directed Interaction Networks based on Counting Process Theory"

Bachelor's Degree in Mathematics, Heidelberg University, 2014, Focus: Statistics and Probability Theory, Thesis "Pricing of Derivatives in the Binomial Model"

Publications

  • Huegle, J., Hagedorn, C., Uflacker, M.: How Causal Structural Knowledge Adds Decision-Support in Monitoring of Automotive Body Shop Assembly Lines. In: Bessiere, C. (ed.) Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence, IJCAI-20. International Joint Conferences on Artificial Intelligence Organization (2020).
     
  • Schmidt, C., Huegle, J.: Towards a GPU-Accelerated Causal Inference.HPI Future SOC Lab - Proceedings 2017. pp. 187-194 (2020).
     
  • Schmidt, C., Huegle, J., Horschig, S., Uflacker, M.: Out-of-Core GPU-Accelerated Causal Structure Learning.Algorithms and Architectures for Parallel Processing. ICA3PP 2019. p. 89--104. Springer International Publishing (2020).
     
  • Schmidt, C., Huegle, J., Bode, P., Uflacker, M.: Load-Balanced Parallel Constraint-Based Causal Structure Learning on Multi-Core Systems for High-Dimensional Data.SIGKDD Workshop on Causal Discovery. p. 59--77 (2019).
     
  • Hesse, G., Matthies, C., Glass, K., Huegle, J., Uflacker, M.: Quantitative Impact Evaluation of an Abstraction Layer for Data Stream Processing Systems.2019 IEEE 39th International Conference on Distributed Computing Systems (ICDCS). pp. 1381-1392 (2019).
     
  • Matthies, C., Huegle, J., Dürschmid, T., Teusner, R.: Attitudes, Beliefs, and Development Data Concerning Agile Software Development Practices.2019 IEEE/ACM 41st International Conference on Software Engineering: Software Engineering Education and Training (ICSE-SEET). pp. 158-169. IEEE (2019).
     
  • Schmidt, C., Huegle, J., Uflacker, M.: Order-independent constraint-based causal structure learning for gaussian distribution models using GPUs.SSDBM '18 Proceedings of the 30th International Conference on Scientific and Statistical Database Management. p. 19:1--19:10. ACM, New York, NY, USA (2018).