2007/04/25 by Vin de Silva, Robert Ghrist · 434 citations
Computer Science · Mathematics · #Topological and Geometric Data Analysis #Homotopy and Cohomology in Algebraic Topology #Mathematics #Persistent homology #Homology (biology) #Topology (electrical circuits) #Combinatorics #Genetics #Algorithm #Biology #Gene
paper · pdf · doi:10.2140/agt.2007.7.339
published in Algebraic & Geometric Topology 7(1), 339-358 (Mathematical Sciences Publishers)
openalex publication_date 2007/04/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/09
We introduce a topological approach to a problem of covering a region in Euclidean space by balls of fixed radius at unknown locations (this problem being motivated by sensor networks with minimal sensing capabilities). In particular, we give a homological criterion to rigorously guarantee that a collection of balls covers a bounded domain based on the homology of a certain simplicial pair. This pair of (Vietoris-Rips) complexes is derived from graphs representing a coarse form of distance estimation between nodes and a proximity sensor for the boundary of the domain. The methods we introduce come from persistent homology theory and are applicable to nonlocalized sensor networks with ad hoc wireless communications.