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Statistics for Data with Geometric Structure

dc.date.accessioned2019-10-24T15:39:24Z
dc.date.available2019-10-24T15:39:24Z
dc.date.issued2018
dc.identifier.urihttp://publications.mfo.de/handle/mfo/3625
dc.description.abstractStatistics for data with geometric structure is an active and diverse topic of research. Applications include manifold spaces in directional data or symmetric positive definite matrices and some shape representations. But in some cases, more involved metric spaces like stratified spaces play a crucial role in different ways. On the one hand, phylogenetic trees are represented as points in a stratified data space, whereas branching trees, for example of veins, are data objects, whose stratified structure is of essential importance. For the latter case, one important tool is persistent homology, which is currently a very active area of research. As data sets become not only larger but also more complex, the need for theoretical and methodological progress in dealing with data on non-Euclidean spaces or data objects with nontrivial geometric structure is growing. A number of fundamental results have been achieved recently and the development of new methods for refined, more informative data representation is ongoing. Two complimentary approaches are pursued: on the one hand developing sophisticated new parameters to describe the data, like persistent homology, and on the other hand achieving simpler representations in terms of given parameters, like dimension reduction. Some foundational works in stochastic process theory on manifolds open the doors to this field and stochastic analysis on manifolds, thus enabling a well-founded treatment of non-Euclidean dynamic data. The results presented in the workshop by leading experts in the field are great accomplishments of collaboration between mathematicians from statistics, geometry and topology and the open problems which were discussed show the need for an expansion of this interdisciplinary effort, which could also tie in more closely with computer science.
dc.titleStatistics for Data with Geometric Structure
dc.rights.licenseDieses Dokument darf im Rahmen von § 53 UrhG zum eigenen Gebrauch kostenfrei heruntergeladen, gelesen, gespeichert und ausgedruckt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.de
dc.rights.licenseThis document may be downloaded, read, stored and printed for your own use within the limits of § 53 UrhG but it may not be distributed via the internet or passed on to external parties.en
dc.identifier.doi10.14760/OWR-2018-3
local.series.idOWR-2018-3
local.subject.msc14
local.subject.msc53
local.subject.msc60
local.subject.msc62
local.subject.msc65
local.sortindex1065
local.date-range21 Jan - 27 Jan 2018
local.workshopcode1804
local.workshoptitleStatistics for Data with Geometric Structure
local.organizersAasa Feragen, Copenhagen; Thomas Hotz, Ilmenau; Stephan Huckemann, Göttingen; Ezra Miller, Durham
local.report-nameWorkshop Report 2018,3
local.opc-photo-id1804
local.publishers-doi10.4171/OWR/2018/3
local.ems-referenceFeragen Aasa, Hotz Thomas, Huckemann Stephan, Miller Ezra: Statistics for Data with Geometric Structure. Oberwolfach Rep. 15 (2018), 125-186. doi: 10.4171/OWR/2018/3


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