"Perspective Differentiation WIth Diffusion Geometry" by Benjamin Ekeroth

Date of Award

Spring 2023

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Mathematics

First Advisor

Coifman, Ronald

Abstract

Extracting the common information amongst a collection of datasets has become a majortopic of research called Sensor Fusion. Instead, we explore a collection of methods for extracting the information which differentiates between collections of datasets. We focus on methods for differentating the perspectives of datasets using diffusion operators. We formulate a minimax problem for optimizing the relative smoothness of functions between collections of graphs, and prove a minimax theorem for generalized eigenvalues to compute the solution. We further investigate methods for extracting control variables from multidimensional time-series, motivated by a differentiation problem in stroke detection.

Share

COinS