Approximate Hierarchical Clustering via Sparsest Cut and Spreading Metrics

• Main Authors: Charikar, Moses, Chatziafratis, Vaggos
• Format: Journal Article
• Language: English
• Published: 29.09.2016
• Subjects: Computer Science - Data Structures and Algorithms

Dasgupta recently introduced a cost function for the hierarchical clustering of a set of points given pairwise similarities between them. He showed that this function is NP-hard to optimize, but a top-down recursive partitioning heuristic based on an alpha_n-approximation algorithm for uniform spars...