Browsing Mathematics (Faculty of) by Title
Now showing items 2489-2508 of 2993
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Simple Termination Criteria for Stochastic Gradient Descent Algorithm
(University of Waterloo, 2021-04-09)Stochastic gradient descent (SGD) algorithm is widely used in modern mathematical optimization. Because of its scalability and ease of implementation, SGD is usually preferred to other methods including the gradient descent ... -
Simple Yet Effective Pseudo Relevance Feedback with Rocchio’s Technique and Text Classification
(University of Waterloo, 2022-08-22)With the continuous growth of the Internet and the availability of large-scale collections, assisting users in locating the information they need becomes a necessity. Generally, an information retrieval system will process ... -
A Simplified Method for Hedging Jump Diffusions
(University of Waterloo, 2010-12-23)Geometric Brownian Motion (GBM) and has been widely used in the Black Scholes option-pricing framework to model the return of assets. However, many empirical investigations show that market returns have higher peaks and ... -
Simulated Overloading using Generic Functions in Scheme
(University of Waterloo, 1997)This thesis investigates extending the dynamically-typed, functional programming language Scheme, with simulated overloading in order to permit the binding of multiple, distributed defnitions to function names. Overloading ... -
Simulating lake dynamics: the effects of bathymetry and bottom drag
(University of Waterloo, 2011-10-31)This work seeks, through numerical simulations as well as analysis, to derive from relatively simple models an intuitive understanding of the dynamics and behaviour of flow in lakes near the bottom boundary. The main body ... -
Simulating Wintertime Lake Dynamics Using the MITgcm Ice Model
(University of Waterloo, 2020-09-23)Lake Erie is an important source of drinking water, a location for recreational activities and a haven for unique ecosystems (e.g. Point Pelee). Recent research has suggested that some wintertime processes are significantly ... -
Simulation of the Ferrofluid Interface
(University of Waterloo, 2020-05-14)Ferrofluids were initially invented as an additive for rocket fuels. The commercial applications of ferrofluids have since expanded, and have become popularized as desktop toys as well as an art form. Since 1987, ferrofluid ... -
Simulation of the Navier-Stokes Equations in Three Dimensions with a Spectral Collocation Method
(University of Waterloo, 2011-05-13)This work develops a nonlinear, three-dimensional spectral collocation method for the simulation of the incompressible Navier-Stokes equations for geophysical and environmental flows. These flows are often driven by the ... -
Simulation of Vortex Interactions With a Solid Wall Using Adaptive Mesh Refinement
(University of Waterloo, 2016-05-12)One feature that is common to many fluid flows is that phenomena of interest often occur at disparate length scales, whether it be vortices interacting with a boundary layer, or shear instabilities on an internal gravity ... -
Simulations of Radiatively Driven Convection and Spatially Heterogeneous Solar Radiation Intensity in Ice-Covered Lakes
(University of Waterloo, 2023-12-22)At the end of winter as sunlight and increasing air temperatures melt the snow layer above the ice, allowing significant radiation from the sun to enter the water column. In the cold water regime (T < 4 °C, where 4 °C is ... -
Simultaneous Graph Representation Problems
(University of Waterloo, 2011-02-18)Many graphs arising in practice can be represented in a concise and intuitive way that conveys their structure. For example: A planar graph can be represented in the plane with points for vertices and non-crossing curves ... -
Simultaneously Embedding Planar Graphs at Fixed Vertex Locations
(University of Waterloo, 2010-05-18)We discuss the problem of embedding planar graphs onto the plane with pre-specified vertex locations. In particular, we introduce a method for constructing such an embedding for both the case where the mapping from the ... -
Single Commodity Flow Algorithms for Lifts of Graphic and Cographic Matroids
(University of Waterloo, 2013-01-23)Consider a binary matroid M given by its matrix representation. We show that if M is a lift of a graphic or a cographic matroid, then in polynomial time we can either solve the single commodity flow problem for M or find ... -
Single-Entity-Single-Relation Question Answering with Minimal Annotation
(University of Waterloo, 2016-08-24)We present a novel bag-of-words based approach that automatically constructs a semantic parsing based question answering (QA) system tailored to single-entity-single-relation questions. Given a large community QA pair ... -
Single-Particle Dynamics in Nanoscopic Systems: Statistical Modeling and Inference
(University of Waterloo, 2022-05-24)Our work aims to solve some of the most significant and fundamental theoretical problems involved in the current statistical modeling of stochastic processes in single-molecule experiments, for which a well recognized yet ... -
Single-pass stratified importance resampling
(University of Waterloo, 2022-09-08)Simulating the behavior of light to produce realistic images involves evaluation of difficult integrals. Monte Carlo integration is a general method to estimate such integrals and is therefore widely used in physically ... -
SkypeMorph: Protocol Obfuscation for Censorship Resistance
(University of Waterloo, 2013-01-24)The Tor network is designed to provide users with low-latency anonymous communication. Tor clients build circuits with publicly listed relays to anonymously reach their destinations. Low-latency anonymous communication is ... -
Sliding Window Query Processing over Data Streams
(University of Waterloo, 2006)Database management systems (DBMSs) have been used successfully in traditional business applications that require persistent data storage and an efficient querying mechanism. Typically, it is assumed that the data are ... -
Smart Contract Analysis Through Communication Abstractions
(University of Waterloo, 2021-09-07)Smart contracts are programs that manage interactions between many users. Recently, Solidity smart contract have become a popular way to enforce financial agreements between untrusting users. However, such agreements do ... -
Smart-Meter Enabled Estimation and Prediction of Outdoor Residential Water Consumption
(University of Waterloo, 2018-01-22)Smart meter technology allows frequent measurements of water consumption at a household level. This greater availability of data allows improved analysis of patterns of residential water consumption, which is important ...