Upcoming Events

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September 24 – 28, 2018 (WIAS-ESH)
Workshop/Konferenz: Analysis of Evolutionary and Complex Systems
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Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal

Host
WIAS Berlin
Universität Stuttgart
University of Warwick
Tuesday, 25.09.2018, 15:00 (WIAS-HVP-3.13)
Seminar Modern Methods in Applied Stochastics and Nonparametric Statistics
F. Besold, Humboldt-Universität zu Berlin:
Adaptive clustering using kernel density estimators
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Weierstraß-Institut, Hausvogteiplatz 11A, 10117 Berlin, 3. Etage, Raum: 3.13

Abstract
We investigate statistical properties of a clustering algorithm suggested by Ingo Steinwart, Bharath K. Sriperumbudur and Philipp Thomann that receives level set estimates from a kernel density estimator and then estimates the first split in the density level cluster tree if such a split is present or detects the absence of such a split. Key aspects of the analysis include finite sample guarantees, consistency, rates of convergence, and an adaptive data-driven strategy for choosing the kernel bandwidth. For the rates and the adaptivity we do not need continuity assumptions on the density such as Hölder continuity, but only require intuitive geometric assumptions of non-parametric nature.

Host
WIAS Berlin
October 8 – 10, 2018 (WIAS-ESH)
Workshop/Konferenz: AMaSiS 2018: Applied Mathematics and Simulation for Semiconductors
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Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, Erdgeschoss, Erhard-Schmidt-Hörsaal

Host
WIAS Berlin
University of Massachusetts
Tuesday, 23.10.2018, 10:15 (WIAS-406)
Seminar Nichtlineare Optimierung und Inverse Probleme
Dr. D. Tiba, Romanian Academy, Bucharest:
Optimal control methods in shape optimization
more ... Location
Weierstraß-Institut, Mohrenstr. 39, 10117 Berlin, 4. Etage, Weierstraß-Hörsaal (Raum: 406)

Host
WIAS Berlin