Browsing Computer Science by Title
Now showing items 1518-1537 of 1547
-
VisConductor: Affect-Varying Gestural Widgets for Animating Dynamic Data Visualization in Augmented Video Presentations
(University of Waterloo, 2023-12-12)To enhance presentations involving data in remote settings, we introduce VisConductor, an authoring and presentation tool that allows presenters to manipulate data visualizations overlaid on their webcam feed with hand ... -
Viscous Liquid Animation with Spatially Adaptive Grids
(University of Waterloo, 2018-01-08)Viscous fluid behaviors are among the most complex yet familiar physical phenomena we encounter in everyday life. Much attention and investigation has been paid to the creation of visually realistic results, especially ... -
The Visibility Freeze-Tag Problem
(University of Waterloo, 2014-08-25)In the Freeze-Tag Problem, we are given a set of robots at points inside some metric space. Initially, all the robots are frozen except one. That robot can awaken (or “unfreeze”) another robot by moving to its position, ... -
Vision-Based Observation Models for Lower Limb 3D Tracking with a Moving Platform
(University of Waterloo, 2011-08-23)Tracking and understanding human gait is an important step towards improving elderly mobility and safety. This thesis presents a vision-based tracking system that estimates the 3D pose of a wheeled walker user's lower ... -
Visualizing and Understanding Code Duplication in Large Software Systems
(University of Waterloo, 2006-12-22)Code duplication, or code cloning, is a common phenomena in the development of large software systems. Developers have a love-hate relationship with cloning. On one hand, cloning speeds up the development process. On the ... -
Volume Visualisation Via Variable-Detail Non-Photorealistic Illustration
(University of Waterloo, 2002)The rapid proliferation of 3D volume data, including MRI and CT scans, is prompting the search within computer graphics for more effective volume visualisation techniques. Partially because of the traditional association ... -
Volumetric Weak Supervision for Semantic Segmentation
(University of Waterloo, 2022-05-24)Semantic segmentation is a popular task in computer vision. Fully supervised methods are data hungry, they require pixel precise annotations for thousands of images. To reduce user annotation efforts, weak supervision for ... -
The Vulcan game of Kal-toh: Finding or making triconnected planar subgraphs
(University of Waterloo, 2011-04-28)In the game of Kal-toh depicted in the television series Star Trek: Voyager, players attempt to create polyhedra by adding to a jumbled collection of metal rods. Inspired by this fictional game, we formulate graph-theoretical ... -
Walking Onions: Scaling Distribution of Information Safely in Anonymity Networks
(University of Waterloo, 2020-08-07)Scaling anonymity networks offers unique security challenges, as attackers can exploit differing views of the network’s topology to perform epistemic and route capture attacks. Anonymity networks in practice, such as ... -
Wasserstein Adversarial Robustness
(University of Waterloo, 2020-09-21)Deep models, while being extremely flexible and accurate, are surprisingly vulnerable to ``small, imperceptible'' perturbations known as adversarial attacks. While the majority of existing attacks focus on measuring ... -
Wasserstein Autoencoders with Mixture of Gaussian Priors for Stylized Text Generation
(University of Waterloo, 2021-01-28)Probabilistic text generation is an important application of Natural Language Processing (NLP). Variational autoencoders and Wasserstein autoencoders are two widely used methods for text generation. New research efforts ... -
WatchTrace: Design and Evaluation of an At-Your-Side Gesture Paradigm
(University of Waterloo, 2017-11-16)In this thesis, we present the exploration and evaluation of a gesture interaction paradigm performed with arms at rest at the side of one's body. This gesture stance is informed persisting challenges in mid-air arm gesture ... -
Weakly-supervised Semantic Segmentation with Regularized Loss Hyperparameter Search
(University of Waterloo, 2021-09-20)Weakly supervised segmentation signi cantly reduces user annotation e ort. Recently, regularized loss was proposed for single object class segmentation under image-level weak supervision. Regularized loss consists of ... -
Weaving a Faster Tor: A Multi-Threaded Relay Architecture for Improved Throughput
(University of Waterloo, 2020-08-10)The Tor anonymity network has millions of daily users and thousands of volunteer-run relays, but growing it further has several research and deployment challenges. One such challenge is supporting the increase in bandwidth ... -
Web Data Integration for Non-Expert Users
(University of Waterloo, 2018-04-26)oday, there is an abundance of structured data available on the web in the form of RDF graphs and relational (i.e., tabular) data. This data comes from heterogeneous sources, and realizing its full value requires integrating ... -
Web Search, Web Tutorials & Software Applications: Characterizing and Supporting the Coordinated Use of Online Resources for Performing Work in Feature-Rich Software
(University of Waterloo, 2015-08-06)Web search and other online resources serve an integral role in how people learn and use feature-rich software (e.g., Adobe Photoshop) on a daily basis. Users depend on web resources both as a first line of technical ... -
A Web-based Statistical Analysis Framework
(University of Waterloo, 2007-04-26)Statistical software packages have been used for decades to perform statistical analyses. Recently, the emergence of the Internet has expanded the potential for these packages. However, none of the existing packages have ... -
Website Fingerprinting on LEO Satellite Internet
(University of Waterloo, 2024-01-24)Although encrypted channels, like those provided by anonymity networks such as Tor, have been put into effect, network adversaries have proven their capability to undermine users' browsing privacy through website fingerprinting ... -
Website Fingerprinting: Attacks and Defenses
(University of Waterloo, 2016-01-13)Website fingerprinting attacks allow a local, passive eavesdropper to determine a client's web activity by leveraging features from her packet sequence. These attacks break the privacy expected by users of privacy technologies, ... -
Weighting Document Genre in Enterprise Search
(University of Waterloo, 2007-08-14)The creation of an Enterprise Search system involves many challenges that are not present in Web search. Searching a corporate collection is influenced both by the structure of the data present in the collection and by ...