2023: Computer Algebra Systems in R. COMPSTAT, London, UK [pdf (presentation)] pdf (presentation).
2021: Aspects of Bayesian networks, Aalborg R User Group, Aalborg, Denmark, April 2021. pdf (notes). pdf (presentation).
2020: Inferens i mixed models i R - hinsides det sædvanlige likelihood ratio test. 42. Symposium i Anvendt Statistik, 27.-28. January, Aarhus, Denmark pdf (paper). pdf (presentation)
2019: Ryacas - A computer algebra system in R, Aalborg R User Group, Aalborg, Denmark, November 2019. pdf.
2018: Bayesian networks with likelihood evidence in R. Nordstat conference, Tartu, Estonia, June 2018. pdf
2018: Inference in mixed models in R - beyond the usual asymptotic likelihood ratio test. Nordstat conference, Tartu, Estonia, June 2018. pdf
2016: Tutorial: Graphical Models and Bayesian Networks with R. November 3+4, 2016 in Zurich. webpage
2016: Højsgaard and Halekoh: Inference in mixed models in R - beyond the usual asymptotic likelihood ratio test. ETH, Zurich. pdf.
2015: Tutorial: Graphical Models and Bayesian Networks with R. CIMAT, Guanajuato, Mexico. webpage