[null,null,["上次更新時間：2025-02-25 (世界標準時間)。"],[[["Many clustering algorithms have a complexity of O(n^2), making them impractical for large datasets, while the k-means algorithm scales linearly with a complexity of O(n)."],["Clustering approaches include centroid-based, density-based, distribution-based, and hierarchical clustering, each suited for different data distributions and structures."],["Centroid-based clustering, particularly k-means, is efficient for grouping data into non-hierarchical clusters based on the mean of data points, but is sensitive to initial conditions and outliers."],["Density-based clustering connects areas of high data density, effectively discovering clusters of varying shapes, but struggles with clusters of differing densities and high-dimensional data."],["Distribution-based clustering assumes data follows specific distributions (e.g., Gaussian), assigning points based on probability, while hierarchical clustering creates a tree of clusters, suitable for hierarchical data."]]],[]]
