Double ML on Kwak Jazzhttps://gwils28.github.io/en/tags/double-ml/Recent content in Double ML on Kwak JazzHugo -- gohugo.ioen© 2026 Wilson GomaMon, 02 Nov 2026 10:03:24 +0100Causal impact on time series: measuring what a grocery chain's promotions really bring inhttps://gwils28.github.io/en/projects/novaretail-incrementalite-promos/Thu, 29 Oct 2026 00:00:00 +0000https://gwils28.github.io/en/projects/novaretail-incrementalite-promos/The BSTS counterfactual from the tech watch applied to the promotions of a fictional grocery chain on the Favorita data: campaigns detected rather than assumed, a donor registry, coverage measured on planted truth (0.83 to 0.90 against 0.5 to 0.7 for iid estimators), the earthquake as a test bench, Double ML, a Dagster pipeline and monitoring.