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TGDA Mini-Course - Jose Perea (Lecture 3)

November 20, 2015
11:30 am - 12:30 pm
Dreese Lab 264

Title: TGDA Minicourse, Lecture 3: Sliding windows and persistence

Speaker: Jose Perea (Michigan State University)

Abstract: We will present in this lecture a theoretical framework for studying the persistent homology of point-clouds from time-delay (or sliding window) embeddings. We will show that persistence yields a suitable measure of periodicity at the signal level, and present theorems which relate the resulting diagrams to the choices of window size, embedding dimension and field of coefficients. We will also demonstrate how this methodology has been successfully  applied to the study of periodicity in time series from gene expression data.

Seminar URL: http://www.tgda.osu.edu/tgda-seminar.html

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Seminar - Topology, Geometry and Data