Search Results for author: Rafał Weron

Found 9 papers, 2 papers with code

Postprocessing of point predictions for probabilistic forecasting of electricity prices: Diversity matters

no code implementations2 Apr 2024 Arkadiusz Lipiecki, Bartosz Uniejewski, Rafał Weron

Operational decisions relying on predictive distributions of electricity prices can result in significantly higher profits compared to those based solely on point forecasts.

Conformal Prediction regression

Combining predictive distributions of electricity prices: Does minimizing the CRPS lead to optimal decisions in day-ahead bidding?

no code implementations29 Aug 2023 Weronika Nitka, Rafał Weron

At the same time, the higher computational cost of using CRPS learning compared to an equal-weighted aggregation of distributions is not offset by higher profits, despite significantly more accurate predictions.

Distributional neural networks for electricity price forecasting

no code implementations6 Jul 2022 Grzegorz Marcjasz, Michał Narajewski, Rafał Weron, Florian Ziel

We present a novel approach to probabilistic electricity price forecasting which utilizes distributional neural networks.

Management

Forecasting Electricity Prices

no code implementations25 Apr 2022 Katarzyna Maciejowska, Bartosz Uniejewski, Rafał Weron

Secondly, there is a clear shift from the relatively parsimonious econometric (or statistical) models towards more complex and harder to comprehend, but more versatile and eventually more accurate statistical/machine learning approaches.

Scheduling

Calibration window selection based on change-point detection for forecasting electricity prices

no code implementations2 Apr 2022 Julia Nasiadka, Weronika Nitka, Rafał Weron

We employ a recently proposed change-point detection algorithm, the Narrowest-Over-Threshold (NOT) method, to select subperiods of past observations that are similar to the currently recorded values.

Change Point Detection Time Series +1

Electricity Price Forecasting: The Dawn of Machine Learning

no code implementations2 Apr 2022 Arkadiusz Jędrzejewski, Jesus Lago, Grzegorz Marcjasz, Rafał Weron

Electricity price forecasting (EPF) is a branch of forecasting on the interface of electrical engineering, statistics, computer science, and finance, which focuses on predicting prices in wholesale electricity markets for a whole spectrum of horizons.

BIG-bench Machine Learning Electrical Engineering

Forecasting day-ahead electricity prices: A review of state-of-the-art algorithms, best practices and an open-access benchmark

1 code implementation18 Aug 2020 Jesus Lago, Grzegorz Marcjasz, Bart De Schutter, Rafał Weron

While the field of electricity price forecasting has benefited from plenty of contributions in the last two decades, it arguably lacks a rigorous approach to evaluating new predictive algorithms.

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