Latent Class
Latent class analysis (LCA) is a statistical technique used to identify unobserved subgroups (latent classes) within a population based on observed categorical data. Current research focuses on extending LCA to handle complex data structures, such as multi-layer data and hierarchical data, and incorporating it into other machine learning frameworks like federated learning and few-shot learning. These advancements improve the interpretability and predictive power of models, particularly in applications involving noisy or imbalanced data, leading to more robust and fair AI systems across various domains including healthcare, social sciences, and recommender systems. Furthermore, research is actively exploring efficient algorithms, such as spectral methods and Bayesian approaches, to improve the scalability and accuracy of LCA.