Description: PCA-based clustering is an unsupervised learning technique that combines dimensionality reduction with data grouping. PCA is a statistical method that transforms a set of possibly correlated variables into a set of uncorrelated variables, called principal components, which retain most of the variability present in the original data. By applying PCA before clustering, the goal is to simplify the data structure, eliminating noise and redundancy, which facilitates the identification of underlying patterns and relationships. This technique is particularly useful in high-dimensional datasets, where visualization and analysis can become complicated. By reducing dimensionality, computational efficiency is improved, and the performance of clustering algorithms, such as K-means or DBSCAN, is optimized. PCA-based clustering allows analysts and data scientists to discover meaningful groups within the data, which can be crucial for informed decision-making in various applications across different fields, including market segmentation, image analysis, and computational biology.
