Now showing items 2286-2305 of 2985

    • Reducing Health Misinformation in Search Results 

      Zhang, Dake (University of Waterloo, 2022-08-22)
      People commonly search the web for answers to health-related questions. With health information being added to the Internet every day, misinformation proliferates and disseminates wildly. Previous work has shown that if ...
    • Reducing Interaction Cost: A Mechanism Deisgn Approach 

      Yunqi, Zhang (University of Waterloo, 2007-09-06)
      In this thesis we study the problem of requiring self-interested agents need to interact with some centralized mechanism where this interaction is costly. To improve their utility, agents may choose to interact ...
    • Reducing the Cost of Operating a Datacenter Network 

      Curtis, Andrew (University of Waterloo, 2012-05-01)
      Datacenters are a significant capital expense for many enterprises. Yet, they are difficult to manage and are hard to design and maintain. The initial design of a datacenter network tends to follow vendor guidelines, but ...
    • Reducing the Latency of Dependent Operations in Large-Scale Geo-Distributed Systems 

      Yan, Xinan (University of Waterloo, 2021-10-14)
      Many applications rely on large-scale distributed systems for data management and computation. These distributed systems are complex and built from different networked services. Dependencies between these services can ...
    • Reductions and Triangularizations of Sets of Matrices 

      Davidson, Colin (University of Waterloo, 2006)
      Families of operators that are triangularizable must necessarily satisfy a number of spectral mapping properties. These necessary conditions are often sufficient as well. This thesis investigates such properties in ...
    • Refining, Implementing, and Evaluating the Extended Continuous Variable-Specific Resolutions of Feature Interactions 

      Zhang, Chi (University of Waterloo, 2016-08-19)
      Systems that involve feature-oriented software development suffer from feature interactions, in which features affect one another’s behaviour in surprising ways. As the number of features increases, the complexity of ...
    • Refresh Strategies in Continuous Active Learning 

      Ghelani, Nimesh (University of Waterloo, 2018-08-27)
      High recall information retrieval is crucial to tasks such as electronic discovery and systematic review. Continuous Active Learning (CAL) is a technique where a human assessor works in loop with a machine learning model; ...
    • Regime Switching and Technical Trading with Dynamic Bayesian Networks in High-Frequency Stock Markets 

      Tayal, Aditya (University of Waterloo, 2009-05-23)
      Technical analysis has been thwarted in academic circles, due to the Efficient Market Hypothesis, which had significant empirical support early on. However recently, there is accumulating evidence that the markets are not ...
    • Regional Time Stepping for SPH 

      Goswami, Prashant; Batty, Christopher (The Eurographics Association, 2014)
      This paper presents novel and efficient strategies to spatially adapt the amount of computational effort applied based on the local dynamics of a free surface flow, for classic weakly compressible SPH (WCSPH). Using a ...
    • Registering a Non-Rigid Multi-Sensor Ensemble of Images 

      Kim, Hwa Young (University of Waterloo, 2009-09-29)
      Image registration is the task of aligning two or more images into the same reference frame to compare or distinguish the images. The majority of registration methods deal with registering only two images at a time. Recently, ...
    • Regression with incomplete covariates and left-truncated time-to-event data 

      Shen, Hua; Cook, Richard J. (Wiley, 2013)
      Studies of chronic diseases routinely sample individuals subject to conditions on an event time of interest. In epidemiology, for example, prevalent cohort studies aiming to evaluate risk factors for survival following ...
    • Regression with incomplete multivariate surrogate responses for a latent covariate 

      Shen, Hua; Cook, Richard J. (Taylor & Francis, 2020-07-29)
      We consider the setting in which a categorical exposure variable of interest can only be measured subject to misclassification via surrogate variables. These surrogate variables may represent the classification of an ...
    • Regular Dilation on Semigroups 

      Li, Boyu (University of Waterloo, 2018-08-07)
      Dilation theory originated from Sz.Nagy's celebrated dilation theorem which states that every contractive operator has an isometric dilation. Regular dilation is one of many fruitful directions that aims to generalize ...
    • Regular Pattern Detection and Analysis Using Shapelets 

      Suderman, Robert (University of Waterloo, 2014-10-27)
      The presence of regular patterns in natural and technological phenomena is pervasive, often being present in both time and space. To increase our understanding of many phenomena where patterns are present, measurable ...
    • Regularization Using a Parameterized Trust Region Subproblem 

      Grodzevich, Oleg (University of Waterloo, 2004)
      We present a new method for regularization of ill-conditioned problems that extends the traditional trust-region approach. Ill-conditioned problems arise, for example, in image restoration or mathematical processing of ...
    • Regularized Autoregressive Approximation in Time Series 

      Chen, Bei (University of Waterloo, 2008-05-25)
      In applications, the true underlying model of an observed time series is typically unknown or has a complicated structure. A common approach is to approximate the true model by autoregressive (AR) equation whose orders are ...
    • Related Orderings of AT-Free Graphs 

      Gorzny, Jan (University of Waterloo, 2022-02-23)
      An ordering of a graph G is a bijection of V(G) to {1, . . . , |V(G)|}. In this thesis, we consider the complexity of two types of ordering problems. The first type of problem we consider aims at minimizing objective ...
    • The Relation between Polygonal Gravity and 3D Loop Quantum Gravity 

      Tiede, Paul (University of Waterloo, 2017-09-13)
      In this thesis, we explore the relation between ’t Hooft polygonal gravity and loop quantum gravity (LQG) - two models of discrete gravity in 2+1 dimensions. While the relation between the two theories has been studied ...
    • Relativistic Theory of the Interaction of Two-Dimensional Materials with Moving Charged Particles 

      Akbari, Kamran (University of Waterloo, 2019-08-08)
      Prompted by the recent surge of interest in integrating atomically thin layers of conducting materials into nanophotonic and nanoplasmonic devices; we propose, in this thesis, a theoretical framework to analyze the ...
    • Relaxations of the Maximum Flow Minimum Cut Property for Ideal Clutters 

      Ferchiou, Zouhaier (University of Waterloo, 2021-01-29)
      Given a family of sets, a covering problem consists of finding a minimum cost collection of elements that hits every set. This objective can always be bound by the maximum number of disjoint sets in the family, we refer ...

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