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Demystifying Overfitting in Time Series
Latest   Machine Learning

Demystifying Overfitting in Time Series

Last Updated on July 17, 2023 by Editorial Team

Author(s): Andrea Ianni

Originally published on Towards AI.

Sevilla FC popularity and Europa League 2023

Image by the author

Suppose that the Marketing department of Sevilla FC has defined a brand satisfaction index based on user interactions on social media. This index is studied in its temporal evolution. The goal of the data science department is to make a forecast about the future of the brand.

“Sevilla FC Marketing at work” — Image by the author

This index varies over time in a fairly predictable manner, following different moments of the football season. However, something unusual happens before the UEFA Europa League final in 2023. The Italian press publishes thousands of articles against Sevilla, assuming their defeat in… Read the full blog for free on Medium.

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