Description: Model underfitting is a phenomenon that occurs in the field of machine learning and artificial intelligence, where a model fails to capture the complexity and underlying patterns of the data due to its simplicity. This modeling error manifests when the model has insufficient capacity to learn from the training data, resulting in poor performance on both the training and test sets. Key characteristics of underfitting include low variance and high bias, meaning the model does not adequately adapt to the data, leading to inaccurate predictions. This phenomenon is particularly relevant in the context of machine learning, where model optimization and selection are crucial to achieving high performance. Understanding why a model fails to capture complex patterns is essential for improving its accuracy and utility, regardless of the specific application or context.
