Metric spaces 27 Mathematics 11 Topology 10 Topology of spaces-- Manifold topology-- Metric topology 9 Mathematical analysis 7 Functional analysis 6 Set theory 5 Topological Structures and spaces-- Knot theory-- Sheaf theory 5 Calculus 4 Data mining 4 Digital techniques 4 Image processing 4 Partially ordered sets 4 MATHEMATICS / Mathematical Analysis 3 Metric Spaces 3 Topological spaces 3 Determinants & matrices-- Algebra-- Mathematics 2 Form perception 2 Geometry 2 Image analysis 2 Java (Computer program language) 2 Lucene Image REtrieval 2 MATHEMATICS / Topology 2 Mathematical Analysis 2 Mathematical models 2 Metric space 2 Picture archiving and communication systems 2 Shapes 2 Stochastic processes 2 Three-dimensional imaging 2