no code implementations • 11 Mar 2024 • Anders Bredahl Kock, Rasmus Søndergaard Pedersen, Jesper Riis-Vestergaard Sørensen
Lasso-type estimators are routinely used to estimate high-dimensional time series models.
no code implementations • 31 Jan 2024 • Anders Bredahl Kock, David Preinerstorfer
A decision maker typically (i) incorporates training data to learn about the relative effectiveness of the treatments, and (ii) chooses an implementation mechanism that implies an "optimal" predicted outcome distribution according to some target functional.
no code implementations • 7 Sep 2022 • Max-Sebastian Dovì, Anders Bredahl Kock, Sophocles Mavroeidis
We consider hypothesis testing in instrumental variable regression models with few included exogenous covariates but many instruments -- possibly more than the number of observations.
no code implementations • 19 May 2020 • Anders Bredahl Kock, David Preinerstorfer, Bezirgen Veliyev
We study the problem of a decision maker who must provide the best possible treatment recommendation based on an experiment.
no code implementations • 29 Jan 2020 • Anders Bredahl Kock, David Preinerstorfer, Bezirgen Veliyev
We consider a multi-armed bandit problem with covariates.
no code implementations • 21 Dec 2018 • Anders Bredahl Kock, David Preinerstorfer, Bezirgen Veliyev
Then, we introduce and study the Functional Upper Confidence Bound (F-UCB) policy, which interweaves exploration and exploitation and is thus not of the ETC type.
no code implementations • 28 May 2017 • Anders Bredahl Kock, Martin Thyrsgaard
We study a problem in which the policy maker is not only interested in the expected cumulative welfare but is also concerned about the uncertainty/risk of the treatment outcomes.
no code implementations • 12 Dec 2013 • Mehmet Caner, Anders Bredahl Kock
We give two examples of loss functions covered by our framework and show how penalized nonparametric series estimation is contained as a special case and provide a finite sample upper bound on the mean square error of the elastic net series estimator.
no code implementations • 4 Nov 2013 • Anders Bredahl Kock, Laurent A. F. Callot
We then give conditions under which the Adaptive LASSO reveals the correct sparsity pattern asymptotically.