Multi-Class classification with Sci-kit learn & XGBoost: A case study using Brainwave data

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In Machine learning, classification problems with high-dimensional data are really challenging. Sometimes, very simple problems become extremely complex due this'curse of dimensionality' problem. In this article, we will see how accuracy and performance vary across different classifiers. We will also see how, when we don't have the freedom to choose a classifier independently, we can do feature engineering to make a poor classifier perform well. For this article, we will use the "EEG Brainwave Dataset" from Kaggle.