Now showing items 2409-2428 of 2480

    • Vacuum Energy in Expanding Spacetime and Superoscillation - Induced Resonance 

      Prain, Angus (University of Waterloo, 2008-05-20)
      This thesis is divided into two parts. The first part is a study of the general problem of vacuum energy or so-called `zero point fluctuations' of a quantum field on expanding spacetimes and the interplay between the ...
    • The Valuation and Risk Management of a DB Underpin Pension Plan 

      Chen, Kai (University of Waterloo, 2007-08-02)
      Hybrid pension plans offer employees the best features of both defined benefit and defined contribution plans. In this work, we consider the hybrid design offering a defined contribution benefit with a defined benefit ...
    • Valuation and Risk Management of Hedge Fund Investments under Alternative Fee Structures 

      Meng, Fei (University of Waterloo, 2020-09-21)
      Hedge funds have specialized fee structures, often including performance fees designed to align the incentives of investors and fund managers. However, hedge funds have faced intense scrutiny since the financial crisis, ...
    • Valuation of Carbon Emission Allowances and Sustainable Investment 

      Fang, Mingyu (University of Waterloo, 2019-09-25)
      Rising awareness of the impacts of climate change is leading to a rapid development of emission trading schemes (ETS) globally as a market-based means of emission control. Under a typical ETS, emission allowances are issued ...
    • Valuing Hedge Fund Fees 

      Xiao, Li (University of Waterloo, 2006)
      This thesis applies a Partial Integral Differential Equation model, along with a Monte Carlo approach to quantitatively analyze the no arbitrage value of hedge fund performance fees. From a no-arbitrage point of view, ...
    • Variability Anomalies in Software Product Lines 

      Nadi, Sarah (University of Waterloo, 2014-08-07)
      Software Product Lines (SPLs) allow variants of a software system to be generated based on the configuration selected by the user. In this thesis, we focus on C based software systems with build-time variability using a ...
    • A Variability-Aware Design Approach to the Data Analysis Modeling Process 

      Tavares, MariaCristina (University of Waterloo, 2018-10-25)
      The massive amount of current data has led to many different forms of data analysis processes that aim to explore this data to uncover valuable insights such as trends, anomalies and patterns. These processes support ...
    • Variability-Aware Performance Prediction: A Case Study 

      Valov, Pavel (University of Waterloo, 2014-10-28)
      Configurable software systems allow users to form configurations by selecting and deselecting features. The process of configuration creation may directly affect performance of the system in a non-linear way because of ...
    • Variability-Modelling Practices in Industrial Software Product Lines: A Qualitative Study 

      Nair, Divya Karunakaran (University of Waterloo, 2013-05-22)
      Many organizations have transitioned from single-systems development to product-line development with the goal of increasing productivity and facilitating mass customization. Variability modelling is a key activity in ...
    • Variable Ranking by Solution-path Algorithms 

      Wang, Bo (University of Waterloo, 2012-01-20)
      Variable Selection has always been a very important problem in statistics. We often meet situations where a huge data set is given and we want to find out the relationship between the response and the corresponding variables. ...
    • Variable selection and prediction in biased samples with censored outcomes 

      Wu, Ying; Cook, Richard J. (Springer, 2018-01-01)
      With the increasing availability of large prospective disease registries, scientists studying the course of chronic conditions often have access to multiple data sources, with each source generated based on its own entry ...
    • Variational Bayesian Learning and its Applications 

      Zhao, Hui (University of Waterloo, 2014-01-03)
      This dissertation is devoted to studying a fast and analytic approximation method, called the variational Bayesian (VB) method, and aims to give insight into its general applicability and usefulness, and explore its ...
    • Variational Inference for Text Generation: Improving the Posterior 

      Balasubramanian, Vikash (University of Waterloo, 2020-08-10)
      Learning useful representations of data is a crucial task in machine learning with wide ranging applications. In this thesis we explore improving representations of models based on variational inference by improving the ...
    • Variational Spectral Analysis 

      Sendov, Hristo (University of Waterloo, 2000)
      We present results on smooth and nonsmooth variational properties of {it symmetric} functions of the eigenvalues of a real symmetric matrix argument, as well as {it absolutely symmetric} functions of the singular values ...
    • Variational Stokes with Polynomial Reduced Fluid Model 

      Panuelos, Jonathan (University of Waterloo, 2021-01-21)
      Standard fluid simulators often apply operator splitting to independently solve for pressure and viscous stresses. This decoupling, however, induces incorrect free surface boundary conditions. Such methods are unable to ...
    • Variational Stokes: A Unified Pressure-viscosity Solver for Accurate Viscous Liquids 

      Larionov, Egor; Batty, Christopher; Bridson, Robert (Association for Computing Machinery, 2017-07-20)
      We propose a novel unsteady Stokes solver for coupled viscous and pressure forces in grid-based liquid animation which yields greater accuracy and visual realism than previously achieved. Modern fluid simulators treat ...
    • Variations on a Theme: Graph Homomorphisms 

      Roberson, David E. (University of Waterloo, 2013-08-30)
      This thesis investigates three areas of the theory of graph homomorphisms: cores of graphs, the homomorphism order, and quantum homomorphisms. A core of a graph X is a vertex minimal subgraph to which X admits a ...
    • Variations on the Erdos Discrepancy Problem 

      Leong, Alexander (University of Waterloo, 2012-01-04)
      The Erdős discrepancy problem asks, "Does there exist a sequence t = {t_i}_{1≤i<∞} with each t_i ∈ {-1,1} and a constant c such that |∑_{1≤i≤n} t_{id}| ≤ c for all n,c ∈ ℕ = {1,2,3,...}?" The discrepancy of t equals ...
    • Variations on the Theme of Caching 

      Gaspar, Cristian (University of Waterloo, 2005)
      This thesis is concerned with caching algorithms. We investigate three variations of the caching problem: web caching in the Torng framework, relative competitiveness and caching with request reordering. <br /><br /> ...
    • Vector Graphics for Real-time 3D Rendering 

      Qin, Zheng (University of Waterloo, 2009-01-27)
      Algorithms are presented that enable the use of vector graphics representations of images in texture maps for 3D real time rendering. Vector graphics images are resolution independent and can be zoomed arbitrarily ...

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