Diffusion wavelet packets
Bremer J, Coifman R, Maggioni M, Szlam A. Diffusion wavelet packets. Applied And Computational Harmonic Analysis 2006, 21: 95-112. DOI: 10.1016/j.acha.2006.04.005.Peer-Reviewed Original ResearchDiffusion waveletsWavelet packetEfficient algorithmImage denoisingSame algorithmMultiscale representationPacketsSignal processingWaveletsAlgorithmDenoisingGraphLower dimensionHigher dimensionsApplicationsTime-frequency basisComputationTaskCompressionAnisotropic settingProcessingRepresentationExampleOperatorsToolDiffusion wavelets
Coifman R, Maggioni M. Diffusion wavelets. Applied And Computational Harmonic Analysis 2006, 21: 53-94. DOI: 10.1016/j.acha.2006.04.004.Peer-Reviewed Original ResearchPseudo-differential operatorsFast multipole methodClass of operatorsNon-homogeneous mediaAssociated Green's functionSpectral theorySymmetric operatorsMultiresolution analysisText documentsDownsampling operatorNumerical rankCoarse grainingCalderón–ZygmundStable algorithmMultiscale computationsData cloudOrthonormal scaling functionsMultipole methodDirectory structureOperator TScaling functionsGreen's functionDiffusion waveletsManifoldMultiscale analysis