Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Monday, May 09, 2011, 12:15 pm

Duration: This information is not available in the database

Location: CAB G51

Speaker: Carsten Lange (FU Berlin)

Optimal topological simplification of discrete functions on surfaces

A widely considered problem is to separate "noise" from "important" information of a function obtained from measured data. But how can we quantify noise? One approach called "persistence theory" uses topological quantities to distinguish between important and less important information. In our set-up, we want to find a perturbation of a given function f on a surface that is close to a f and has as few critical points as possible. This is achieved by combining Forman's discrete Morse theory with Edelsbrunner's persistence theory.

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