Now showing items 21-40 of 1306

    • PRSONA: Private Reputation Supporting Ongoing Network Avatars 

      Gurtler, Stan (University of Waterloo, 2021-12-09)
      Trust and user-generated feedback have become increasingly vital to the normal functioning of the modern internet. However, deployed systems that currently incorporate such feedback do not guarantee users much in the way ...
    • Geodesic Convex Analysis of Group Scaling for the Paulsen Problem and the Tensor Normal Model 

      Ramachandran, Akshay (University of Waterloo, 2021-11-18)
      The framework of scaling problems has recently had much interest in the theoretical computer science community due to its variety of applications, from algebraic complexity to machine learning. In this thesis, our main ...
    • Users, Queries, and Bad Abandonment in Web Search 

      Abualsaud, Mustafa (University of Waterloo, 2021-11-18)
      After a user submits a query and receives a list of search results, the user may abandon their query without clicking on any of the search results. A bad query abandonment is when a searcher abandons the SERP because they ...
    • Are machine learning corpora “fair dealing” under Canadian law? 

      Brown, Dan; Byl, Lauren; Grossman, Maura R. (Proceedings of the 12th International Conference on Computational Creativity, 2021-09)
      We consider the use of large corpora for training compuationally creative systems, particularly those that write new text based on the style of an existing author or genre. Under Canadian copyright law, a key concern for ...
    • Dowsing for Math Answers: Exploring MathCQA with a Math-aware Search Engine 

      Ng, Yin Ki (University of Waterloo, 2021-11-09)
      Solving math problems can be challenging. It is so challenging that one might wish to seek insights from the internet, looking for related references to understand more about the problems. Even more, one might wish to ...
    • Understanding Mode and Modality Transfer in Unistroke Gesture Input 

      Henderson, Jay (University of Waterloo, 2021-10-22)
      Unistroke gestures are an attractive input method with an extensive research history, but one challenge with their usage is that the gestures are not always self-revealing. To obtain expertise with these gestures, interaction ...
    • Reducing the Latency of Dependent Operations in Large-Scale Geo-Distributed Systems 

      Yan, Xinan (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 ...
    • Exception Handling in C∀ 

      Beach, Andrew James (University of Waterloo, 2021-10-04)
      The C∀ (Cforall) programming language is an evolutionary refinement of the C programming language, adding modern programming features without changing the programming paradigms of C. One of these modern programming features ...
    • A Type System With Containers 

      Thode, Michael (University of Waterloo, 2021-10-04)
      In this thesis, we will introduce the concept of containers as they apply to programming languages. Encapsulation is a common topic in programming languages with well understood benefits. Here, we will investigate its ...
    • Novel Paradigms in Physics-Based Animation: Pointwise Divergence-Free Fluid Advection and Mixed-Dimensional Elastic Object Simulation 

      Chang, Jumyung (University of Waterloo, 2021-10-01)
      This thesis explores important but so far less studied aspects of physics-based animation: a simulation method for mixed-dimensional and/or non-manifold elastic objects, and a pointwise divergence-free velocity interpolation ...
    • Misinformation Retrieval 

      Rizvi, Saira (University of Waterloo, 2021-10-01)
      This work introduces the task of misinformation retrieval, identifying all documents containing misinformation for a given topic, and proposes a pipeline for misinformation retrieval on tweets. As part of the work, I curated ...
    • Determining the Utility of Key-term Highlighting for High Recall Information Retrieval Systems 

      Wang, Xue Jun (University of Waterloo, 2021-09-28)
      High-recall information retrieval (HRIR) is an important tool used in tasks such as electronic discovery ("eDiscovery") and systematic review of medical research. Applications of HRIR often uses a human as its oracle to ...
    • Fast algorithms for computing with integer matrices: normal forms and applications 

      Birmpilis, Stavros (University of Waterloo, 2021-09-24)
      The focus of this thesis is on fundamental computational problems in exact integer linear algebra. Specifically, for a nonsingular integer input matrix A of dimension n, we consider problems such as linear system solving ...
    • Equality Operators for Constant-weight Codewords with Applications in (Keyword) PIR 

      Akhavan Mahdavi, Rasoul (University of Waterloo, 2021-09-21)
      Homomorphic encryption allows computation to be performed on data while in encrypted form. However, the computational overhead of a circuit that is run using homomorphic encryption depends on the number of multiplications ...
    • The Fence Complexity of Persistent Sets 

      Coccimiglio, Gaetano (University of Waterloo, 2021-09-21)
      This thesis studies fence complexity of concurrent sets in a non-volatile shared memory model. I consider the case where CPU registers and cache memory remain volatile while main memory is non-volatile. Flush instructions ...
    • Analyzing Barehand Input Mappings for Video Timeline Control and Object Pointing on Smart TVs 

      Zhang, Futian (University of Waterloo, 2021-09-21)
      Smart TVs are getting popular in recent few years. Given the emerging feature of distant bare hand control, one challenge is how to perform common tasks with this new input modality. Two tasks are discussed in this thesis ...
    • Weakly-supervised Semantic Segmentation with Regularized Loss Hyperparameter Search 

      Ji, Zongliang (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 ...
    • Learning Energy-Aware Transaction Scheduling in Database Systems 

      Sethi, Udhav (University of Waterloo, 2021-09-20)
      Servers are typically sized to accommodate peak loads, but in practice, they remain under-utilized for much of the time. During periods of low load, there is an opportunity to save power by quickly adjusting processor ...
    • “Transport Me Away”: Fostering Flow in Open Offices through Virtual Reality 

      Ruvimova, Anastasia; Kim, Junhyeok; Fritz, Thomas; Hancock, Mark; Shepherd, David C. (ACM, 2020-04-21)
      Open offices are cost-effective and continue to be popular. However, research shows that these environments, brimming with distractions and sensory overload, frequently hamper productivity. Our research investigates the ...
    • On the Number of Trials Needed to Obtain k Consecutive Successes 

      Drekic, Steve; Spivey, Michael Z. (Elsevier, 2021-04-30)
      A sequence of independent Bernoulli trials, each of which is a success with probability p, is conducted. For k ∈ Z+, let Xk be the number of trials required to obtain k consecutive successes. Using techniques from elementary ...


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