Unlabeled Set
Unlabeled datasets, containing data without associated class labels, are a crucial resource in machine learning, enabling the development of models with improved accuracy and robustness, especially when labeled data is scarce or expensive. Current research focuses on leveraging unlabeled data through techniques like self-training, where models iteratively predict labels and refine their performance, and ensemble methods that combine predictions from multiple models trained on different subsets of the unlabeled data. These approaches aim to address challenges such as calibration issues, semantic drift, and overfitting, ultimately leading to more reliable and efficient machine learning models across various applications, including text classification, image recognition, and even automated scoring of complex assessments.