Now showing items 21-40 of 2480

    • Risk Modelling in Shariah Compliant Investment and Insurance Products 

      Puspita, Dila (University of Waterloo, 2021-09-28)
      The main objective of this study is to develop a risk model for Shariah (Islamic) compliant investment and insurance. Islamic finance is a part of Socially Responsible Investment (SRI) that incorporates religious ethics. ...
    • Correspondence Colouring and its Applications to List Colouring and Delay Colouring 

      Saleh, Rana (University of Waterloo, 2021-09-28)
      In this thesis, we study correspondence colouring and its applications to list colouring and delay colouring. We give a detailed exposition of the paper of Dvořák, and Postle introducing correspondence colouring. Moreover, ...
    • Synchronization of Complex-Valued Dynamical Networks 

      Shen, Yuan (University of Waterloo, 2021-09-27)
      Dynamical networks (DNs) have been broadly applied to describe natural and human systems consisting of a large number of interactive individuals. Common examples include Internet, food webs, social networks, neural networks, ...
    • Change Point Analysis in Piecewise Polynomial Signals Using Trend Filtering 

      Valiollahi Mehrizi, Reza (University of Waterloo, 2021-09-27)
      Change point analysis, an active area of research in many fields, including statistics, has attracted a lot of attention in recent years. The focus of this thesis is change point detection, where the purpose is to estimate ...
    • The Unobserved Waiting Customer Approximation 

      Granville, Kevin; Drekic, Steve (Springer, 2021-06-02)
      We introduce a new approximation procedure to improve the accuracy of matrix analytic methods when using truncated queueing models to analyse infinite buffer systems. This is accomplished through emulating the presence of ...
    • Backscatter in stratified turbulence 

      Khani, Sina; Waite, Michael L (Elsevier, 2016-11)
      In this paper, kinetic and potential energy transfers around a spectral test fil ter scale in direct numerical simulations of decaying stratified turbulence are studied in both physical and spectral domains. It is shown ...
    • Prandtl number dependence of stratified turbulence 

      Legaspi, Jesse D.; Waite, Michael L (Cambridge, 2020-09-21)
      Stratified turbulence has a horizontally layered structure with quasi-two-dimensional vortices due to buoyancy forces that suppress vertical motion. The Prandtl number Pr quantifies the relative strengths of viscosity ...
    • Fast algorithms for computing with integer matrices: normal forms and applications 

      Birmpilis, Stavros (University of Waterloo, 2021-09-24)
      The focus of this thesis is on fundamental computational problems in exact integer linear algebra. Specifically, for a nonsingular integer input matrix A of dimension n, we consider problems such as linear system solving ...
    • Equality Operators for Constant-weight Codewords with Applications in (Keyword) PIR 

      Akhavan Mahdavi, Rasoul (University of Waterloo, 2021-09-21)
      Homomorphic encryption allows computation to be performed on data while in encrypted form. However, the computational overhead of a circuit that is run using homomorphic encryption depends on the number of multiplications ...
    • The Fence Complexity of Persistent Sets 

      Coccimiglio, Gaetano (University of Waterloo, 2021-09-21)
      This thesis studies fence complexity of concurrent sets in a non-volatile shared memory model. I consider the case where CPU registers and cache memory remain volatile while main memory is non-volatile. Flush instructions ...
    • Analyzing Barehand Input Mappings for Video Timeline Control and Object Pointing on Smart TVs 

      Zhang, Futian (University of Waterloo, 2021-09-21)
      Smart TVs are getting popular in recent few years. Given the emerging feature of distant bare hand control, one challenge is how to perform common tasks with this new input modality. Two tasks are discussed in this thesis ...
    • Weakly-supervised Semantic Segmentation with Regularized Loss Hyperparameter Search 

      Ji, Zongliang (University of Waterloo, 2021-09-20)
      Weakly supervised segmentation signi cantly reduces user annotation e ort. Recently, regularized loss was proposed for single object class segmentation under image-level weak supervision. Regularized loss consists of ...
    • Learning Energy-Aware Transaction Scheduling in Database Systems 

      Sethi, Udhav (University of Waterloo, 2021-09-20)
      Servers are typically sized to accommodate peak loads, but in practice, they remain under-utilized for much of the time. During periods of low load, there is an opportunity to save power by quickly adjusting processor ...
    • “Transport Me Away”: Fostering Flow in Open Offices through Virtual Reality 

      Ruvimova, Anastasia; Kim, Junhyeok; Fritz, Thomas; Hancock, Mark; Shepherd, David C. (ACM, 2020-04-21)
      Open offices are cost-effective and continue to be popular. However, research shows that these environments, brimming with distractions and sensory overload, frequently hamper productivity. Our research investigates the ...
    • Coupled models of structured contagion processes in human-environment systems 

      Jentsch, Peter Carl (University of Waterloo, 2021-09-15)
      Models of infectious processes are a common feature in the landscape of applied mathematics. It is rare that these processes are isolated from other significant dynamics in nature, and therefore we can incorporate some of ...
    • On the Number of Trials Needed to Obtain k Consecutive Successes 

      Drekic, Steve; Spivey, Michael Z. (Elsevier, 2021-04-30)
      A sequence of independent Bernoulli trials, each of which is a success with probability p, is conducted. For k ∈ Z+, let Xk be the number of trials required to obtain k consecutive successes. Using techniques from elementary ...
    • Designing Persuasively using Playful Elements 

      Wehbe, Rina Renee (University of Waterloo, 2021-09-14)
      Alongside productivity and communication, computers are a valuable tool for diversion and amusement. Game Designers leverage the multifaceted world of computing to create applications that can be developed persuasively; ...
    • Thomassen’s 5-Choosability Theorem Extends to Many Faces 

      Nevin, Joshua (University of Waterloo, 2021-09-10)
      We prove in this thesis that planar graphs can be L-colored, where L is a list-assignment in which every vertex has a 5-list except for a collection of arbitrarily large faces which have 3-lists, as long as those faces ...
    • On the roughness of paths and processes 

      Avilez, Jose Luis (University of Waterloo, 2021-09-10)
      In recent years, a significant amount of the stochastic volatility literature has focused on modelling the ``roughness" or irregularity of the unobserved volatility time series and its effect on option pricing. In many ...
    • Universe Beyond Inflation and ΛCDM 

      Kim, Hyung Jin (University of Waterloo, 2021-09-09)
      The current paradigm of universe, $\Lambda CDM$ model with an early phase of inflation, has been quite successful in describing our universe in a simple manner, yet matching well with the observational evidence. This model ...

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