no code implementations • 18 Apr 2023 • Jungyeon Park, Estêvão Alvarenga, Jooyoung Jeon, Ran Li, Fotios Petropoulos, Hokyun Kim, Kwangwon Ahn
Using probabilistic load forecasts produced by either ARMA-GARCH models or kernel density estimation (KDE), we propose three approaches to creating a portfolio of residential households' demand: Forecast Validated, Seasonal Residual, and Seasonal Similarity.
no code implementations • 9 Feb 2021 • Spyros Makridakis, Chris Fry, Fotios Petropoulos, Evangelos Spiliotis
Forecasting competitions are the equivalent of laboratory experimentation widely used in physical and life sciences.
Applications
no code implementations • 3 Dec 2020 • Yanfei Kang, Wei Cao, Fotios Petropoulos, Feng Li
In this work, we suggest a change of focus from the historical data to the produced forecasts to extract features.
no code implementations • 3 Jun 2020 • Evangelos Spiliotis, Mahdi Abolghasemi, Rob J. Hyndman, Fotios Petropoulos, Vassilios Assimakopoulos
First, the proposed method allows for a non-linear combination of the base forecasts, thus being more general than the linear approaches.
2 code implementations • 31 Aug 2019 • Yanfei Kang, Evangelos Spiliotis, Fotios Petropoulos, Nikolaos Athiniotis, Feng Li, Vassilios Assimakopoulos
Instead of extrapolating, the future paths of the similar reference series are aggregated and serve as the basis for the forecasts of the target series.
Methodology Applications
2 code implementations • 8 Aug 2019 • Xiaoqian Wang, Yanfei Kang, Fotios Petropoulos, Feng Li
In the training part, we use a collection of time series to train a model to explore how time series features affect the interval forecasting accuracy of different forecasting methods, which makes our proposed framework interpretable in terms of the contribution of each feature to the models' uncertainty prediction.
Methodology Applications Computation
2 code implementations • 11 Mar 2015 • José Augusto Fioruci, Tiago Ribeiro Pellegrini, Francisco Louzada, Fotios Petropoulos
Accurate and robust forecasting methods for univariate time series are very important when the objective is to produce estimates for a large number of time series.
Methodology 62M10