Browsing Mathematics (Faculty of) by Title
Now showing items 2315-2334 of 3018
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Reducing the Latency of Dependent Operations in Large-Scale Geo-Distributed Systems
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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 ... -
Reliable Transport Performance in Mobile Environments
(University of Waterloo, 2001)Expanding the global Internet to include mobile devices is an exciting area of current research. Because of the vast size of the Internet, and because the protocols in it are already widely deployed, mobile devices must ... -
Rendering Antialiased Shadows using Warped Variance Shadow Maps
(University of Waterloo, 2008-05-06)Shadows contribute significantly to the perceived realism of an image, and provide an important depth cue. Rendering high quality, antialiased shadows efficiently is a difficult problem. To antialias shadows, it is necessary ... -
Repetition in Words
(University of Waterloo, 2013-08-23)The main topic of this thesis is combinatorics on words. The field of combinatorics on words dates back at least to the beginning of the 20th century when Axel Thue constructed an infinite squarefree sequence over a ternary ...