Theses: Recent submissions
Now showing items 21-40 of 15492
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Smooth and Time-Optimal Trajectory Planning for Multi-Axis Machine Tools
(University of Waterloo, 2024-02-26)This thesis presents novel methods for feedrate optimization and toolpath smoothing in CNC machining. Descriptions of the algorithms, simulation test cases, and experimental results are presented. Both feedrate optimization ... -
Task-Parameterized Transformer for Learning Gripper Trajectory from Demonstrations
(University of Waterloo, 2024-02-26)The goal of learning from demonstration or imitation learning is to teach the model to generalize across unseen tasks based on available demonstrations. This ability can be important for the stable performance of a robot ... -
Cardinality Estimation in Streaming Graph Data Management Systems
(University of Waterloo, 2024-02-23)Graph processing has become an increasingly popular paradigm for data management systems. Concurrently, there is a pronounced demand for specialized systems dedicated to streaming processing that are essential to address ... -
Robust Sonographic Muscle Quality Assessment: A Live, Accurate Tissue Speed-of-Sound Estimation Framework
(University of Waterloo, 2024-02-23)Muscle quality can act as an indicator for physical health through qualitative – yet measurable – changes in muscle architecture and composition. One option for assessing muscle quality is through musculoskeletal ultrasound, ... -
MS/MS Spectrum Prediction for MHC-Associated Peptides with a Fine-Tuned Model
(University of Waterloo, 2024-02-23)To improve the quality of spectral library search, several MS/MS spectrum predictors have been developed in the last decades. After success in various fields, deep learning techniques are adopted by MS/MS spectrum predictors ... -
Fair and Efficient Resource Scheduling in Heterogeneous Multi-Agent Systems
(University of Waterloo, 2024-02-22)The performance of machine-learning applications heavily relies on the choice of the underlying hardware architecture, encompassing factors such as computational power, scalability, memory, and storage capabilities. These ... -
A High Performance DDR4 Memory Controller on FPGA
(University of Waterloo, 2024-02-22)We introduce a high-performance DDR4 SDRAM memory controller synthesizable design for AMD/Xilinx's FPGA devices. Due to limitations in operating frequency, the design on FPGA presents additional challenges compared to ASIC: ... -
Enhanced EIRP and Reconfigurable Polarization Antenna for Millimeter-Wave Digital Beamforming using Circular Arrays
(University of Waterloo, 2024-02-22)The move towards millimeter wave (mm-wave) frequency bands in wireless communication has been driven by the need for higher data rates. However, some of the major challenges faced with the shift to mm-wave are high free ... -
Analyzing Threats of Large-Scale Machine Learning Systems
(University of Waterloo, 2024-02-22)Large-scale machine learning systems such as ChatGPT rapidly transform how we interact with and trust digital media. However, the emergence of such a powerful technology faces a dual-use dilemma. While it can have many ... -
Development and biomedical applications of solid phase micro-extraction (bio-SPME) chemical biopsy devices
(University of Waterloo, 2024-02-22)Micro-sampling is a vital component in modern diagnostics and personalized medicine. In vivo SPME is a novel branch of biomedical applications of SPME (Bio-SPME) that offers unique advantages complementary to existing ... -
Measuring urban edge effects and its impact on restoration potential in Rouge National Urban Park
(University of Waterloo, 2024-02-21)Urban development is a driving force behind habitat fragmentation and biodiversity loss in major metropolitan areas. While greenspaces and naturalized areas can provide resources for wildlife, urban areas are organized in ... -
Development of III-V Semiconductor Surface Quantum Wells for Hybrid Superconducting Device Applications
(University of Waterloo, 2024-02-20)This thesis concerns the materials development of both InSb/InAlSb and InAs/AlGaSb surface quantum wells: Two of the most promising platforms for the study of proximity-induced superconductivity in semiconductors with ... -
Controlling Exciton Polarization in Transition Metal Doped Indium Oxide Nanocrystals
(University of Waterloo, 2024-02-20)The simultaneous manipulation of electronic charge and spin in dilute magnetic semiconductors (DMSs) doped with transition metal ions has been long considered a holy grail for advancing spintronics and quantum information ... -
A Deep-Learning Framework for Detecting and Predicting Clinical Events Using Continuous, Multimodal Physiological Signals
(University of Waterloo, 2024-02-20)There are an estimated 313 million surgeries performed worldwide each year. Even with significant clinical and technical advances in perioperative research, many patients experience a major complication during the first ... -
Magnetotransport experiments in GaAs 2D holes and RF-QPC readout in a lateral quantum dot device
(University of Waterloo, 2024-02-16)This thesis presents a set of experiments conducted on GaAs/AlGaAs heterostructures fabricated into Hall bars and a lateral quantum dot device. The Hall bar experiments seek to further the understanding of the complexity ... -
Development and Application of a Consumable-Free Modulator for Comprehensive Two-Dimensional Gas Chromatography
(University of Waterloo, 2024-02-16)Comprehensive two-dimensional gas chromatography (GC×GC), is a separation method recognized as offering far greater peak capacity than conventional one-dimensional separations. Today, the most frequently used GC×GC systems ... -
Professional Ethics for Economists: A Reflection on DeMartino's Oath
(University of Waterloo, 2024-02-16)Economists and the discipline of economics occupy positions of immense institutional and intellectual authority in the world today. Decisions made based on the advice and expertise of economists influence the lives of ... -
Safety-Critical Control for Dynamical Systems under Uncertainties
(University of Waterloo, 2024-02-15)Control barrier functions (CBFs) and higher-order control barrier functions (HOCBFs) have shown great success in addressing control problems with safety guarantees. These methods usually find the next safe control input ... -
Traffic Rule Checking and Validation
(University of Waterloo, 2024-02-15)This thesis presents a comprehensive exploration of traffic rule verification systems for diverse junction types, addressing key challenges in formalizing rules, determining violation thresholds, and covering a wide spectrum ... -
Graph-Theoretic Techniques for Optimizing NISQ Algorithms
(University of Waterloo, 2024-02-15)Entering the NISQ era, the search for useful yet simple quantum algorithms is perhaps of more importance now than it may ever be in the future. In place of quantum walks, the quantum Fourier transform, and asymptotic results ...