Diffusion Geometries, and multiscale Harmonic Analysis on graphs and complex data sets. Multiscale diffusion geometries, “Ontologies and knowledge building”
Diffusion Geometries in Document Spaces. Multiscale Harmonic Analysis. R.R. Coifman, S. Lafon, A. Lee, M. Maggioni, B.Nadler. F. Warner, S. Zucker. Mathematics.