Now showing items 41-60 of 964

    • Analyzing Threats of Large-Scale Machine Learning Systems 

      Lukas, Nils (University of Waterloo, 2024-02-22)
      Large-scale machine learning systems such as ChatGPT rapidly transform how we interact with and trust digital media. However, the emergence of such a powerful technology faces a dual-use dilemma. While it can have many ...
    • Angles, Majorization, Wielandt Inequality and Applications 

      Lin, Minghua (University of Waterloo, 2013-05-29)
      In this thesis we revisit two classical definitions of angle in an inner product space: real-part angle and Hermitian angle. Special attention is paid to Krein’s inequality and its analogue. Some applications are given, ...
    • Answering Object Queries over Knowledge Bases with Expressive Underlying Description Logics 

      Wu, Jiewen (University of Waterloo, 2013-10-25)
      Many information sources can be viewed as collections of objects and descriptions about objects. The relationship between objects is often characterized by a set of constraints that semantically encode background knowledge ...
    • Appearance Changes due to Light Exposure 

      Kimmel, Bradley William (University of Waterloo, 2017-01-12)
      The fading of materials due to light exposure over time is a major contributor to the overall aged appearance of man-made objects. Although much attention has been devoted to the modeling of aging and weathering phenomena ...
    • An Application of Matrix Analytic Methods to Queueing Models with Polling 

      Granville, Kevin (University of Waterloo, 2019-08-23)
      We review what it means to model a queueing system, and highlight several components of interest which govern the behaviour of customers, as well as the server(s) who tend to them. Our primary focus is on polling systems, ...
    • Application of Mixture Theory to solid tumors and normal pressure hydrocephalus 

      Burazin, Andrijana (University of Waterloo, 2014-01-15)
      In this thesis, the theory of poroelasticity, namely the Mixture Theory version -- a homogenized, macroscopic scale approach used to describe fluid flow through a porous medium -- is employed in three separate cases ...
    • Applications of claim investigation in insurance surplus and claims models 

      Huynh, Mirabelle (University of Waterloo, 2018-01-03)
      Claim investigation is a fundamental part of an insurer's business. Queues form as claims accumulate and claims are investigated according to some queueing mechanism. The natural existence of queues in this context prompts ...
    • Applications of Deep Learning to Differential Equation Models in Oncology 

      Meaney, Cameron (University of Waterloo, 2023-07-25)
      The integration of quantitative tools in biology and medicine has led to many groundbreaking advances in recent history, with many more promising discoveries on the horizon. Conventional mathematical models, particularly ...
    • Applications of Description Logic and Causality in Model Checking 

      Ben-David, Shoham (University of Waterloo, 2009-06-19)
      Model checking is an automated technique for the verification of finite-state systems that is widely used in practice. In model checking, a model M is verified against a specification $\varphi$, exhaustively checking ...
    • Applications of Geometry in Optimization and Statistical Estimation 

      Maroufy, Vahed (University of Waterloo, 2016-01-25)
      Geometric properties of statistical models and their influence on statistical inference and asymptotic theory reveal the profound relationship between geometry and statistics. This thesis studies applications of convex ...
    • Applications of Operator Systems in Dynamics, Correlation Sets, and Quantum Graphs 

      Kim, Se Jin (University of Waterloo, 2020-07-24)
      The recent works of Kalantar-Kennedy, Katsoulis-Ramsey, Ozawa, and Dykema-Paulsen have demonstrated that many problems in the theory of operator algebras and quantum information can be approached by looking at various ...
    • Applications of Projection Pursuit in Functional Data Analysis: Goodness-of- fit, Forecasting, and Change-point Detection 

      Xie, Yijun (University of Waterloo, 2021-01-20)
      Dimension reduction methods for functional data have been avidly studied in recent years. However, existing methods are primarily based on summarizing the data by their projections into principal component subspaces, namely ...
    • Applications of Stochastic Control to Portfolio Selection Problems 

      Lin, Hongcan (University of Waterloo, 2018-10-16)
      Portfolio selection is an important problem both in academia and in practice. Due to its significance, it has received great attention and facilitated a large amount of research. This thesis is devoted to structuring optimal ...
    • Applications of the minimal modelprogram in arithmetic dynamics 

      Nasserden, Brett (University of Waterloo, 2021-09-07)
      Let F be a surjective endomorphism of a normal projective variety X defined over a number field. The dynamics of F may be studied through the dynamics of the linear action of an associated linear pull-back action on divisors. ...
    • Approximation Algorithms for Clustering and Facility Location Problems 

      Ahmadian, Sara (University of Waterloo, 2017-04-06)
      Facility location problems arise in a wide range of applications such as plant or warehouse location problems, cache placement problems, and network design problems, and have been widely studied in Computer Science and ...
    • Approximation Algorithms for Distributionally Robust Stochastic Optimization 

      Linhares Rodrigues, Andre (University of Waterloo, 2019-05-15)
      Two-stage stochastic optimization is a widely used framework for modeling uncertainty, where we have a probability distribution over possible realizations of the data, called scenarios, and decisions are taken in two stages: ...
    • Approximation Algorithms for Path TSP, ATSP, and TAP via Relaxations 

      Gao, Zhihan (University of Waterloo, 2015-07-29)
      Linear programming (LP) relaxations provide a powerful technique to design approximation algorithms for combinatorial optimization problems. In the first part of the thesis, we study the metric s-t path Traveling Salesman ...
    • Approximation Constants for Closed Subschemes of Projective Varieties 

      Rollick, Nickolas (University of Waterloo, 2019-06-19)
      Diophantine approximation is a branch of number theory with a long history, going back at least to the work of Dirichlet and Liouville in the 1840s. The innocent-looking question of how well an arbitrary real algebraic ...
    • Approximation, Proof Systems, and Correlations in a Quantum World 

      Gharibian, Sevag (University of Waterloo, 2012-08-29)
      This thesis studies three topics in quantum computation and information: The approximability of quantum problems, quantum proof systems, and non-classical correlations in quantum systems. Our first area of study concerns ...
    • Aspects of Metric Spaces in Computation 

      Skala, Matthew Adam (University of Waterloo, 2008-06-06)
      Metric spaces, which generalise the properties of commonly-encountered physical and abstract spaces into a mathematical framework, frequently occur in computer science applications. Three major kinds of questions about ...

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