Browsing Mathematics (Faculty of) by Title
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Large Aperiodic Semigroups
(World Scientific Publishing, 20151101)We search for the largest syntactic semigroups of starfree languages having n left quotients; equivalently, we look for the largest transition semigroups of aperiodic finite automata with n states. We first introduce ... 
Large eddy simulations and subgrid scale motions in stratified turbulence
(University of Waterloo, 20150318)Direct numerical and large eddy simulations (DNS $\&$ LES) of decaying and forced stratified turbulence are studied in this thesis. By defining a test filter scale $k_c$ in the horizontal and vertical directions separately, ... 
LargeScale Emulation of Anonymous Communication Networks
(University of Waterloo, 20140815)Tor is the most popular lowlatency anonymous communication system for the Internet, helping people to protect their privacy online and circumvent Internet censorship. Its low latency anonymity and distributed design ... 
A Las Vegas Algorithm for the Ordered Majority Problem
(University of Waterloo, 20220929)In this thesis, we study the majority problem using ordered comparisons under the Las Vegas randomized algorithm model. The majority problem asks whether a given set of n elements, each with some colour, has a colour which ... 
Latelumping backstepping control of partial differential equations
(Elsevier, 201902)We consider in this paper three different partial differential equations (PDEs) that can be exponentially stabilized using backstepping controllers. For implementation, a finitedimensional controller is generally needed. ... 
A Latent Health Factor Model for Estimating Estuarine Ecosystem Health
(University of Waterloo, 20090520)Assessment of the “health” of an ecosystem is often of great interest to those interested in monitoring and conservation of ecosystems. Traditionally, scientists have quantified the health of an ecosystem using multimetric ... 
Lattice Compression of Polynomial Matrices
(University of Waterloo, 20070501)This thesis investigates lattice compression of polynomial matrices over finite fields. For an m x n matrix, the goal of lattice compression is to find an m x (m+k) matrix, for some relatively small k, such that the ... 
Lattice Paths
(University of Waterloo, 20220824)This thesis is a survey of some of the well known results in lattice path theory. Chapter 1 looks into the history of lattice paths. That is, when it began and how it was popularized. Chapter 3 focuses on general lattices ... 
Learn Privacyfriendly Global Gaussian Processes in Federated Learning
(University of Waterloo, 20220817)In the era of big data, Federated Learning (FL) has drawn great attention as it naturally operates on distributed computational resources without the need of data warehousing. Similar to Distributed Learning (DL), FL ... 
Learn2Perturb: an Endtoend Feature Perturbation Learning to Improve Adversarial Robustness
(University of Waterloo, 20200819)Deep neural networks have been achieving stateoftheart performance across a wide variety of applications, and due to their outstanding performance, they are being deployed in safety and security critical systems. However, ... 
Learning Automatic Question Answering from Community Data
(University of Waterloo, 20120919)Although traditional search engines can retrieval thousands or millions of web links related to input keywords, users still need to manually locate answers to their information needs from multiple returned documents or ... 
Learning by Teaching: Key Challenges and Design Implications
(University of Waterloo, 20220117)Benefits of learning by teaching (LbT) have been highlighted by previous studies from a pedagogical lens, as well as through computersupported systems. However, the challenges that university students face in technologymediated ... 
Learning EnergyAware Transaction Scheduling in Database Systems
(University of Waterloo, 20210920)Servers are typically sized to accommodate peak loads, but in practice, they remain underutilized for much of the time. During periods of low load, there is an opportunity to save power by quickly adjusting processor ... 
Learning Factors and Determining Documentlevel Satisfaction In SearchasLearning
(University of Waterloo, 20170426)An important use of search engines is as a tool for learning. Search engines help users find learning material and increases their knowledge in various topics. The underlying process of learning while web searching and ... 
Learning Filters for the 2D Wavelet Transform
(IEEE, 2018)We propose a new method for learning filters for the 2D discrete wavelet transform. We extend our previous work on the 1D wavelet transform in order to process images. We show that the 2D wavelet transform can be represented ... 
Learning From Almost No Data
(University of Waterloo, 20210615)The tremendous recent growth in the fields of artificial intelligence and machine learning has largely been tied to the availability of big data and massive amounts of compute. The increasingly popular approach of training ... 
Learning from Green Technology Designers
(University of Waterloo, 20140213)This thesis presents results from a qualitative case study on environmentally minded technology designers, and provides an account of how these designers think, differ and behave. Through semistructured interviews, we ... 
Learning from Partially Labeled Data: Unsupervised and Semisupervised Learning on Graphs and Learning with Distribution Shifting
(University of Waterloo, 20070820)This thesis focuses on two fundamental machine learning problems:unsupervised learning, where no label information is available, and semisupervised learning, where a small amount of labels are given in addition to unlabeled ... 
Learning in largescale spiking neural networks
(University of Waterloo, 20110831)Learning is central to the exploration of intelligence. Psychology and machine learning provide highlevel explanations of how rational agents learn. Neuroscience provides lowlevel descriptions of how the brain changes ... 
Learning Instruction Scheduling Heuristics from Optimal Data
(University of Waterloo, 2006)The development of modern pipelined and multiple functional unit processors has increased the available instruction level parallelism. In order to fully utilize these resources, compiler writers spend large amounts of ...