Search Results for author: Ines Wilms

Found 14 papers, 0 papers with code

Cross-Temporal Forecast Reconciliation at Digital Platforms with Machine Learning

no code implementations14 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).

Decision Making

Monitoring Machine Learning Forecasts for Platform Data Streams

no code implementations17 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.

Decision Making

Tree-based Forecasting of Day-ahead Solar Power Generation from Granular Meteorological Features

no code implementations30 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.

Fast Forecasting of Unstable Data Streams for On-Demand Service Platforms

no code implementations3 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.

Sparse High-Dimensional Vector Autoregressive Bootstrap

no code implementations2 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.

Time Series Time Series Analysis +1

Hierarchical Regularizers for Reverse Unrestricted Mixed Data Sampling Regressions

no code implementations25 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.

Local Projection Inference in High Dimensions

no code implementations7 Sep 2022 Robert Adamek, Stephan Smeekes, Ines Wilms

In this paper, we estimate impulse responses by local projections in high-dimensional settings.

Vocal Bursts Intensity Prediction

Detecting Anti-dumping Circumvention: A Network Approach

no code implementations12 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.

Hierarchical Regularizers for Mixed-Frequency Vector Autoregressions

no code implementations23 Feb 2021 Alain Hecq, Marie Ternes, Ines Wilms

Mixed-frequency Vector AutoRegressions (MF-VAR) model the dynamics between variables recorded at different frequencies.

Tree-based Node Aggregation in Sparse Graphical Models

no code implementations29 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.

TAG

Interpretable Vector AutoRegressions with Exogenous Time Series

no code implementations9 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.

Management Marketing +2

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