Browsing Theses by Title
Now showing items 13266-13285 of 15549
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Sparse Polynomial Interpolation and Testing
(University of Waterloo, 2016-03-03)Interpolation is the process of learning an unknown polynomial f from some set of its evaluations. We consider the interpolation of a sparse polynomial, i.e., where f is comprised of a small, bounded number of terms. Sparse ... -
A Sparse Random Feature Model for Signal Decomposition
(University of Waterloo, 2022-05-11)Signal decomposition and multiscale signal analysis provide useful tools for time-frequency analysis. In this thesis, an overview of the signal decomposition problem is given and popular methods are discussed. A novel ... -
Sparse Reconstruction of Compressive Sensing Magnetic Resonance Imagery using a Cross Domain Stochastic Fully Connected Conditional Random Field Framework
(University of Waterloo, 2016-07-08)Prostate cancer is a major health care concern in our society. Early detection of prostate cancer is crucial in the successful treatment of the disease. Many current methods used in detecting prostate cancer can either ... -
Sparse2SOAP: Domain Adaptation for LiDAR-Based 3D Object Detection
(University of Waterloo, 2023-05-25)In this work, we propose Sparse2SOAP, an extension of the previous work in Sparse2Dense that uses knowledge distillation in a teacher-student framework to densify 3D features, to enable its uses for cross-domain LiDAR-based ... -
Sparsity in Critical Graphs with Small Clique Number
(University of Waterloo, 2020-08-27)In 1998, Reed conjectured that for every graph $G$, $\chi(G) \leq \lceil \frac{1}{2}(\Delta(G)+1+\omega(G)) \rceil$, and proved that there exists $\varepsilon > 0$ such that $\chi(G) \leq \lceil (1 - \varepsilon)(\Delta(G)+1) ... -
Spatial analysis exploring the influence of stream daylighting in building resilient urban form: A study of Zürich, Switzerland’s ‘Bachkonzept’ for stream daylighting
(University of Waterloo, 2021-07-27)Cities face several risks that jeopardize their adaptability as the effects of climate change and urbanization on our ecosystems intensify. Recognizing the potentially disastrous outcomes of inaction, local governments and ... -
Spatial Analysis of Geographic Variation in Mental Health Visits and Its Association with Social and Built Environment in Toronto Neighbourhoods
(University of Waterloo, 2019-08-07)Introduction: Mental health is a growing concern in Canada. Existing studies that examine mental health related factors generally focus on individual-level characteristics, which often neglect contextual and spatial effects. ... -
Spatial Analysis of Participation in the Waterloo Residential Energy Efficiency Project
(University of Waterloo, 2008-12-11)Researchers are in broad agreement that energy-conserving actions produce economic as well as energy savings. Household energy rating systems (HERS) have been established in many countries to inform households of their ... -
Spatial Analysis of the Effect of Absenteeism on Education Quality in Maynas, Peru
(University of Waterloo, 2007-09-17)This thesis examines the effect of absenteeism on education quality for primary-aged public school students in the Department of Loreto, Province of Maynas, situated in the Amazonian region of north-eastern Peru. The thesis ... -
A Spatial Analysis of the Nansen Ice Shelf Basal Channel, Using Ice Penetrating Radar
(University of Waterloo, 2019-01-21)The stability of floating ice shelves in the Antarctic is of great concern as their current thinning and future collapse will release mass from grounded ice sheets into the ocean, contributing to sea level rise. The study ... -
Spatial and Channel Attention-based 3D Object Classification Research for 3D Point Clouds
(University of Waterloo, 2023-01-16)Deep learning has been widely used in Two Dimensional (2D) computer vision and has led to the realization that machine learning techniques have become one of the key research directions for future scientific research. In ... -
Spatial and spatio-temporal analyses of neighborhood retail food environments: evidence for food planning and interventions
(University of Waterloo, 2016-11-25)The food system has been increasingly recognized as an indispensable component in professional planning in Canada. As its retailing part, the Retail Food Environment (RFE) has recently gained considerable attention, since ... -
Spatial and Temporal Bacterial Community Dynamics in Constructed Wetland Mesocosms
(University of Waterloo, 2009-08-27)The objective of this work was to understand microbial population density and diversity, both spatially and temporally, in wetland mesocosms to gain a better fundamental understanding for use in the optimization and design ... -
Spatial and Temporal Discounting in a Social-Climate Model
(University of Waterloo, 2024-01-25)This thesis analyzes how individuals' devaluation of distant impacts of climate change affects mitigation behaviours and projected climate conditions. To approach this question, spatial and temporal discounting is applied ... -
Spatial and temporal food web dynamics of a contaminated Lake Ontario embayment, Hamilton Harbour
(University of Waterloo, 2009-04-30)Hamilton Harbour, a semi-enclosed bay located at the western end of Lake Ontario, is listed as one of the most polluted systems in the Great Lakes. Anthropogenic influences such as four wastewater treatment plants, two ... -
Spatial and temporal patterns of habitat use in anadromous Arctic charr Salvelinus alpinus in nearshore marine and overwintering lake environments
(University of Waterloo, 2019-01-15)Even though anadromy is integral to the life history of the Arctic charr (Salvelinus alpinus) in many northern regions, little is known about what shapes the patterns of anadromy. Moreover, little is known about the habitat ... -
Spatial and Temporal Trends in Water Quality in a Mixed-Use Landscape: Agriculture vs. Urban Areas
(University of Waterloo, 2018-10-22)The eutrophication of aquatic ecosystems is a growing water quality concern as it can promote the proliferation of harmful algal blooms that have severe environmental, health, and economic impacts. In United States alone, ... -
Spatial and temporal variability of stand-replacing fire frequency in Quetico Provincial Park, Ontario
(University of Waterloo, 2008-10-24)Fire is the primary natural disturbance vital to the ecological integrity of Quetico Provincial Park, Ontario, Canada. A new provincial park planning process (i.e., Class Environmental Assessment) has required the review ... -
Spatial Atomic Layer Deposition of Alumina-based Thin Film Encapsulation for High Performance Perovskite Solar Cells
(University of Waterloo, 2023-05-25)In this thesis, various alumina-based thin-film encapsulation layers including nitrogen-doped alumina, zinc-doped alumina and ZnO/Al2O3 nanolaminate structures are deposited by atmospheric-pressure spatial atomic layer ... -
Spatial Auditory Maps for Blind Travellers
(University of Waterloo, 2011-05-13)Empirical research shows that blind persons who have the ability and opportunity to access geographic map information tactually, benefit in their mobility. Unfortunately, tangible maps are not found in large numbers. ...