Now showing items 9-28 of 2480

    • A+ Indexes: Highly Flexible Adjacency Lists in Graph Database Management Systems 

      Khaliq, Shahid (University of Waterloo, 2019-09-17)
      Adjacency lists are the most fundamental storage structure in existing graph database management systems (GDBMSs) to index input graphs. Adjacency lists are universally linked-list like per-vertex structures that allow ...
    • Abelian, amenable operator algebras are similar to C∗ -algebras 

      Marcoux, Laurent W.; Popov, Alexey I. (Duke University Press, 2016-12)
      Suppose that H is a complex Hilbert space and that ℬ(H) denotes the bounded linear operators on H. We show that every abelian, amenable operator algebra is similar to a C∗-algebra. We do this by showing that if 𝒜⊆ℬ(H) is ...
    • Abstract and Explicit Constructions of Jacobian Varieties 

      Urbanik, David (University of Waterloo, 2018-08-10)
      Abelian varieties, in particular Jacobian varieties, have long attracted interest in mathematics. Their influence pervades arithmetic geometry and number theory, and understanding their construction was a primary motivator ...
    • Accelerating the Training of Convolutional Neural Networks for Image Segmentation with Deep Active Learning 

      Chen, Wei Tao (University of Waterloo, 2020-01-23)
      Image semantic segmentation is an important problem in computer vision. However, Training a deep neural network for semantic segmentation in supervised learning requires expensive manual labeling. Active learning (AL) ...
    • Access Control Administration with Adjustable Decentralization 

      Chinaei, Amir Hossein (University of Waterloo, 2007-09-12)
      Access control is a key function of enterprises that preserve and propagate massive data. Access control enforcement and administration are two major components of the system. On one hand, enterprises are responsible for ...
    • Accurate viscous free surfaces for buckling, coiling, and rotating liquids 

      Batty, Christopher; Bridson, Robert (Association for Computing Machinery, 2008-07)
      We present a fully implicit Eulerian technique for simulating free surface viscous liquids which eliminates artifacts in previous approaches, efficiently supports variable viscosity, and allows the simulation of more ...
    • Achieving Performance Objectives for Database Workloads 

      Mallampalli, Anusha (University of Waterloo, 2010-08-30)
      In this thesis, our goal is to achieve customer-specified performance objectives for workloads in a database management system (DBMS). Competing workloads in current DBMSs have detrimental effects on performance. ...
    • Action of degenerate Bethe operators on representations of the symmetric group 

      Rahman, Sifat (University of Waterloo, 2018-05-24)
      Degenerate Bethe operators are elements defined by explicit sums in the center of the group algebra of the symmetric group. They are useful on account of their relation to the Gelfand-Zetlin algebra and the Young-Jucys-Murphy ...
    • Active Learning with Semi-Supervised Support Vector Machines 

      Chinaei, Leila (University of Waterloo, 2007-05-22)
      A significant problem in many machine learning tasks is that it is time consuming and costly to gather the necessary labeled data for training the learning algorithm to a reasonable level of performance. In reality, it is ...
    • Active Sensing for Partially Observable Markov Decision Processes 

      Koltunova, Veronika (University of Waterloo, 2013-01-21)
      Context information on a smart phone can be used to tailor applications for specific situations (e.g. provide tailored routing advice based on location, gas prices and traffic). However, typical context-aware smart phone ...
    • Actuarial Inference and Applications of Hidden Markov Models 

      Till, Matthew Charles (University of Waterloo, 2011-08-17)
      Hidden Markov models have become a popular tool for modeling long-term investment guarantees. Many different variations of hidden Markov models have been proposed over the past decades for modeling indexes such as the S&P ...
    • Actuarial Ratemaking in Agricultural Insurance 

      Zhu, Wenjun (University of Waterloo, 2015-08-06)
      A scientific agricultural (re)insurance pricing approach is essential for maintaining sustainable and viable risk management solutions for different stakeholders including farmers, governments, insurers, and reinsurers. ...
    • Acyclic Colouring of Graphs on Surfaces 

      Redlin, Shayla (University of Waterloo, 2018-09-04)
      An acyclic k-colouring of a graph G is a proper k-colouring of G with no bichromatic cycles. In 1979, Borodin proved that planar graphs are acyclically 5-colourable, an analog of the Four Colour Theorem. Kawarabayashi and ...
    • Ad-hoc Holistic Ranking Aggregation 

      Saleeb, Mina (University of Waterloo, 2012-12-06)
      Data exploration is considered one of the major processes that enables the user to analyze massive amount of data in order to find the most important and relevant informa- tion needed. Aggregation and Ranking are two of ...
    • Adapting Component Analysis 

      Dorri, Fatemeh (University of Waterloo, 2012-05-18)
      A main problem in machine learning is to predict the response variables of a test set given the training data and its corresponding response variables. A predictive model can perform satisfactorily only if the training ...
    • Adaptive Algorithms for Weighted Queries on Weighted Binary Relations and Labeled Trees 

      Veraskouski, Aleh (University of Waterloo, 2007-07-30)
      Keyword queries are extremely easy for a user to write. They have become a standard way to query for information in web search engines and most other information retrieval systems whose users are usually laypersons and ...
    • Adaptive Comparison-Based Algorithms for Evaluating Set Queries 

      Mirzazadeh, Mehdi (University of Waterloo, 2004)
      In this thesis we study a problem that arises in answering boolean queries submitted to a search engine. Usually a search engine stores the set of IDs of documents containing each word in a pre-computed sorted order and ...
    • An Adaptive Context-Aware Publish–Subscribe Component Metamodel 

      Blanco, Luis (University of Waterloo, 2015-01-16)
      There are plenty of solutions in which the functionality for context awareness is separated from the domain-specific functionality. Also, there are multiple ways of modeling, gathering, and processing context-related ...
    • Adaptive CPU Allocation for Resource Isolation and Work Conservation 

      Guo, Cong (University of Waterloo, 2020-07-06)
      Consolidating multiple workloads on the same physical machine is an effective measure for utilizing resources efficiently and reducing costs. The main objective is to execute multiple demanding workloads using no more than ...
    • Adaptive Fusion Techniques for Effective Multimodal Deep Learning 

      Sahu, Gaurav (University of Waterloo, 2020-08-28)
      Effective fusion of data from multiple modalities, such as video, speech, and text, is a challenging task due to the heterogeneous nature of multimodal data. In this work, we propose fusion techniques that aim to model ...

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