Statistics and Data Analysis Group

Jan-Ole Fischer (né Koslik) (M.Sc.)

Research associate (PhD student)

Room: V9-126
Phone: +49 521 106-5103
E-mail: jan-ole.koslik@uni-bielefeld.de

Personal website

Publications

• Koslik, J.-O., Feldmann, C.C., Mews, S., Michels, R., Langrock, R. (2025)
  "Inference on the state process of periodically inhomogeneous hidden Markov models for animal behaviour"
  Annals of Applied Statistics, 19, 2724-2737

• Mews, S., Koslik, J.-O., Langrock, R. (2025)
  "How to build your latent Markov model – the role of time and space"
  Statistical Modelling, 25, 481-507

• Bajons, R., Koslik, J.-O., Michels, R., Ötting, M. (2025)
  "PEP: a tackle value measuring the prevention of expected points"
  Journal of Quantitative Analysis in Sports, in press

• Koslik, J.-O. (2025)
  "Hidden semi-Markov models with inhomogeneous state dwell-time distributions"
  Computational Statistics & Data Analysis, 209, 108171

• Dyck, J., Koslik, J.-O., Sauzet, O. (2025) 
  "EgoCor: An R package to facilitate the use of exponential semi-variograms for modelling the local spatial correlation structure in social epidemiology"
  Journal of Open Research Software, 13, 6
• Michels, R., Koslik, J.-O. (2024)
  "On the combination of data smoothing and Markov-switching models"
  Journal of the Royal Statistical Society – Series C, 73, 557-560

Preprints

• Koslik, J.-O., Dupont, F., Auger-Méthé, M., Marcoux, M., Hussey, N., Heckman, N. (2025)
  "Flexible unimodal density estimation in hidden Markov models"
  arXiv:2511.17071

• Vienken, M.N., Langrock, R., Koslik, J.-O. (2025)
  "Inference on state occupancy in covariate-driven hidden Markov models"
  arXiv:2512.17496

• Koslik, J.-O. (2025)
  “Tensor-product interactions in Markov-switching models”
  arXiv:2507.01555

• Koslik, J.-O. (2024)
  "Efficient smoothness selection for nonparametric Markov-switching models via quasi restricted maximum likelihood"
  arXiv:2411.11498

Short CV

• Since 10/2023: PhD student in the Statistics and Data Analysis Group
• 03/2025 – 04/2025: Research stay at the University of British Columbia in Vancouver
• 10/2021 – 09/2023: Studies of Statistical Science (M.Sc.) at Bielefeld University
• 11/2020 – 09/2021: Studies of Economics (B.Sc.) at Bielefeld University
• 09/2019 - 01/2020: Erasmus semester at Budapest Business School, Hungary
• 10/2017 – 09/2020: Studies of Business Administration (B.A.) at Bielefeld University of Applied Sciences and Arts