no code implementations • 14 Feb 2024 • Jeroen Rombouts, Marie Ternes, Ines Wilms
Platform businesses operate on a digital core and their decision making requires high-dimensional accurate forecast streams at different levels of cross-sectional (e. g., geographical regions) and temporal aggregation (e. g., minutes to days).
no code implementations • 17 Jan 2024 • Jeroen Rombouts, Ines Wilms
To ensure accurate and stable forecasts, we propose a simple data-driven monitoring procedure to answer the question when the ML algorithm should be re-trained.
no code implementations • 30 Nov 2023 • Nick Berlanger, Noah van Ophoven, Tim Verdonck, Ines Wilms
Accurate forecasts for day-ahead photovoltaic (PV) power generation are crucial to support a high PV penetration rate in the local electricity grid and to assure stability in the grid.
no code implementations • 3 Mar 2023 • Yu Jeffrey Hu, Jeroen Rombouts, Ines Wilms
On-demand service platforms face a challenging problem of forecasting a large collection of high-frequency regional demand data streams that exhibit instabilities.
no code implementations • 2 Feb 2023 • Robert Adamek, Stephan Smeekes, Ines Wilms
We introduce a high-dimensional multiplier bootstrap for time series data based capturing dependence through a sparsely estimated vector autoregressive model.
no code implementations • 25 Jan 2023 • Alain Hecq, Marie Ternes, Ines Wilms
Reverse Unrestricted MIxed DAta Sampling (RU-MIDAS) regressions are used to model high-frequency responses by means of low-frequency variables.
no code implementations • 7 Sep 2022 • Robert Adamek, Stephan Smeekes, Ines Wilms
In this paper, we estimate impulse responses by local projections in high-dimensional settings.
no code implementations • 12 Jul 2022 • Luca Barbaglia, Christophe Croux, Ines Wilms
Despite the increasing integration of the global economic system, anti-dumping measures are a common tool used by governments to protect their national economy.
no code implementations • 23 Feb 2021 • Alain Hecq, Marie Ternes, Ines Wilms
Mixed-frequency Vector AutoRegressions (MF-VAR) model the dynamics between variables recorded at different frequencies.
no code implementations • 29 Jan 2021 • Ines Wilms, Jacob Bien
High-dimensional graphical models are often estimated using regularization that is aimed at reducing the number of edges in a network.
no code implementations • 23 Jul 2020 • Stephan Smeekes, Ines Wilms
Unit root tests form an essential part of any time series analysis.
no code implementations • 21 Jul 2020 • Robert Adamek, Stephan Smeekes, Ines Wilms
In this paper we develop valid inference for high-dimensional time series.
no code implementations • 9 Nov 2017 • Ines Wilms, Sumanta Basu, Jacob Bien, David S. Matteson
The Vector AutoRegressive (VAR) model is fundamental to the study of multivariate time series.
no code implementations • 17 Dec 2014 • William B. Nicholson, Ines Wilms, Jacob Bien, David S. Matteson
Vector autoregression (VAR) is a fundamental tool for modeling multivariate time series.