The Institute of Statistics is organizing a Symposium in honor of our late head of Institute, supervisor, colleague and friend Friedrich "Fritz" Leisch who passed away in April 2024 after a serious illness.

We will hear scientific research contributions from colleagues and fellow researchers on topics in statistics and computing Fritz has contributed to such as for example clustering and mixture models or literate programming and reproducible research.

During the symposium we will present the first Fritz Leisch Award winner.

Thursday 24th to Friday 25th of April 2025

BOKU University, Türkenschanze,
Peter-Jordan-Str. 82, Ilse Wallentin Building,
Seminar Room EG-01/02

Registration

Regular registration fee for the Symposium is 80€. Student fee is 20€.

If you additionally want to join us for the conference dinner April 24th 18:00 please transfer 180€. For students 100€.

Please register only for the sessions you will attend via termino:

https://www.termino.gv.at/meet/p/ea2fdb18693be4748290d7f07a894027-397341

Please transfer the amount to:
Universität für Bodenkultur Wien
IBAN: AT04 3200 0017 0050 0512
BIC/SWIFT: RLNWATWWXXX
Payment reference: 7851016392

Program:

Day 1 (Thu April 24th)

10:00 - 10:30 Registration 

10:30 - 12:30 BOKU Collaborations

  • Gerald Striedner
  • Karolina Taczanowska:
    Lobbying in social media as a new source of survey bias
  • Rafaela Schinegger:
    Mentoring and contributions of Fritz Leisch in the fields of aquatic ecosystem and conservation sciences
  • Reinhard Hössinger with  Simona Jokubauskaite:
    A discrete-continuous model for the joint estimation of time use, expenditure allocation, and travel mode choice

12:30 - 13:30 Lunch

13:30 - 15:00 External Collaborations

  • Harald Aschauer:
    Mind and Genes
  • Göran Kauermann:
    Mixture Models revisited for Quantifying Uncertainty in Machine Learning
  • Helmut Küchenhoff:
    Clusteranalysis in practice- EU energy pathways and tourism behaviour
  • Sara Dolnicar:
    Friedrich Leisch’s contributions to market segmentation analysis
  • Di Cook:
    Interactively Visualizing Multivariate Market Segmentation Using the R Package Lionfish

15:00 - 15:30 Coffee Break

15:30 - 17:00 Cluster Analysis

  • Kurt Hornik:
    circlus: An R Package for Circular and Spherical Clustering using PKBD and Spherical Cauchy Distributions
  • Bettina Grün:
    Ordinal Clustering with the flex-Scheme
  • Sylvia Frühwirth-Schnatter:
    With a smile - Dealing with identifiability problems in finite mixture models
  • Christian Hennig:
    The role of data visualisation in cluster analysis

18:00 Conference Dinner, Meierei Diglas

Day 2 (Fri April 25th)

09:00 - 10:30 Computational Statistics

  • Matthias Templ:
    Open Research Data and Reproducibility through Data Synthesis: Problems and Opportunities
  • Peter Filzmoser:
    Cell-wise robustness for sparse PCA
  • Hans Kessler
  • Fritz Leisch Award 

10:30 - 11:00 Coffee Break

11:00 - 12:30 Statistical Computing & Reproducibility

  • Robert Gentleman: 
    Contributions of Fritz Leisch to Vignettes and Reproducible Research
  • Torsten Hothorn: 
    Did We Practice What We Preached?
  • Achim Zeileis: 
    Examining Exams Using Rasch Models and Assessment of Measurement Invariance
  • Carolin Strobl: 
    Against the “one method fits all data sets” philosophy for comparison studies in methodological research

12:30 Closing and Lunch