The topology of probability distributions on manifolds

• 成果类型: Article
• 署名作者: Bobrowski, Omer; Mukherjee, Sayan
• 署名单位: Duke University; Duke University; Duke University; Duke University
• 刊物名称: PROBABILITY THEORY AND RELATED FIELDS
• ISSN/ISSBN: 0178-8051
• DOI: 10.1007/s00440-014-0556-x
• 发表日期: 2015
• 页码: 651-686
• 关键词: random-fields; persistence

摘要

Let be a set of random points in , generated from a probability measure on a -dimensional manifold . In this paper we study the homology of -the union of -dimensional balls of radius around , as , and . In addition we study the critical points of -the distance function from the set . These two objects are known to be related via Morse theory. We present limit theorems for the Betti numbers of , as well as for number of critical points of index for . Depending on how fast decays to zero as grows, these two objects exhibit different types of limiting behavior. In one particular case (), we show that the Betti numbers of perfectly recover the Betti numbers of the original manifold , a result which is of significant interest in topological manifold learning.