Topics in optimization and learning

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Abstract/Contents

Abstract
Optimization algorithms that learn from data have been around for a long time. Nevertheless, the ever-changing nature of computational resources, the development of modern theoretical tools, and the availability of new kinds of data keep us wondering what is possible in this field. This work gives us a fresh look at three classical problems: point-set registration, multi-resolution analysis, and tensor factorization. First, we explore how the least unsquared loss ensures exact recovery of the optimal rotation between two point clouds under gross corruption. We also show a phase transition of the probability of exact recovery when the least unsquared loss is optimized over convex sets containing the special orthogonal group. Second, we present a neural network architecture inspired in the non-standard wavelet form, called BCR-net. The BCR-net uses significantly fewer parameters than standard neural networks and shows promising behavior compressing non-linear integral operators. Lastly, we discuss the implications of defining a factorization-preserving algebra to evaluate functions over high-dimensional tensors. We focus on what makes tensors in tensor ring form challenging to work with, and we give insights on how to overcome these challenges.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2021; ©2021
Publication date 2021; 2021
Issuance monographic
Language English

Creators/Contributors

Author Orozco Bohorquez, Cindy Catherine
Degree supervisor Ying, Lexing
Thesis advisor Ying, Lexing
Thesis advisor Darve, Eric
Thesis advisor Gerritsen, Margot (Margot G.)
Degree committee member Darve, Eric
Degree committee member Gerritsen, Margot (Margot G.)
Associated with Stanford University, Institute for Computational and Mathematical Engineering

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Cindy Catherine Orozco Bohorquez.
Note Submitted to the Institute for Computational and Mathematical Engineering.
Thesis Thesis Ph.D. Stanford University 2021.
Location https://purl.stanford.edu/qn148ph7611

Access conditions

Copyright
© 2021 by Cindy Catherine Orozco Bohorquez
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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