(major international conferences only)
2022. "In drei Alternationen um die Welt, oder: wie viele probabilistische Grammatiken man braucht, um internationale Varietäten des Englischen zu modellieren". Plenary lecture presented at the 7. Kongress der Internationalen Gesellschaft für Dialektologie des Deutschen (IGDD), Salzburg (Austria), July.
2021. "What corpora can tell us about the link between grammatical variation and language complexity". Plenary lecture presented at ICAME 42, Dortmund (Germany), August.
2020. "How difficult is grammatical variation, really?". Keynote lecture presented at Grammar and Corpora 8, Cracow (Poland), November.
2019. "Exploring probabilistic grammar(s) in varieties of English". Plenary lecture presented at the 8th Biennial International Conference on the Linguistics of Contemporary English (BICLCE), Bamberg (Germany), September.
2019. "Variation squared". Plenary lecture presented at the 10th International Conference on Language Variation in Europe (ICLaVE 10), Leeuwarden (Netherlands), June
2018. "Evaluating the similarity of dialect grammars: a corpus-based variationist approach". Keynote lecture presented at the "Grammar of Non-Standard Varieties in the East of the Circum-Baltic Area" conference, Tartu (Estonia), February.
2017. "Eurolects: the view from variationist corpus linguistics". Keynote lecture presented at the "Eurolects: language contact and variational dynamics across European legislative corpora" conference, Rome (Italy), October.
2017. "The register-specificity of variation grammars". Keynote paper presented at the theme session "Register in linguistic theory: Modeling functional variation" of the 39. Jahrestagung der Deutschen Gesellschaft für Sprachwissenschaft (DGfS), Saarbrücken (Germany), March 10.
2015. "Contrastive probabilistic grammar". Plenary lecture presented at Language in Contrast, Paris (France), December 5.
2015. "About corpus linguistics, variation, and the variationist method". Plenary lecture presented at New Ways of Analyzing Variation (NWAV 44), Toronto (Canada), October 23.
2015. "Prescriptivism versus colloquialization: the rise of relative that". Plenary lecture presented at the UK Language Variation and Change conference (UKLVC 10), York (UK), September 1.
2014. "Recent advances in the corpus-based study of linguistic complexity". Plenary lecture presented at the AACL 2014, Flagstaff, Arizona (USA), September 27.
2013. "Diachronic Probabilistic Grammar". Plenary lecture presented at the 2013 International Conference on English Linguistics, Seoul (Korea), July 5.