Dissertations and Theses  Mathematics, Statistics, and Computer Science: Recent submissions
Now showing items 120 of 736

Modeling Temporal and Structural Information in Time Series Data
(20180830)Time series data is a sequence of data with temporal information at each position in the sequence. Such data widely exists in various disciplines. In computer science, different areas such as computational biology, signal ... 
Realizing Provider Policies on Cellular Networks
(20181120)Background applications (e.g., cloudsync, software and firmware updates), which previously relied on wired or WiFi networks, are starting to rely on cellular networks to transfer vast amounts of data. While wired and ... 
A Study on the Use of MobileSpecifc HTML5 WebAPI Calls on the Web
(20181119)The growth of smartphones diffusion in the last decade and the pervasiveness of the web in the current lifestyle pose the attention on the privacy and security of the users. While it is well known how browserrelated data ... 
Adversarial Structural Learning: Approximating Training Data for MultiVariate Predictions
(20181119)In this thesis, we address two important characteristics of prediction tasks in many real world problems by developing an adversarial classification framework. Structured data is the feature of many real world applications ... 
A Distributed Graph Approach For Retrieving Linked RDF Data Using Supercomputing Systems
(20181109)Many RDF data systems are able to perform queries on different types of connected data structures for a scalable range of input. Partitioning techniques, graph algorithms, and mem ory based indexing schemes have been ... 
Automatic Exploit Generation for Web Applications
(20181102)Web applications are valuable targets for security attacks because of their popularity and the sensitive data that they handle (e.g., credit card data, medical records, and personal information). Vulnerabilities that ... 
Symbolic and Neural Approaches for Learning Other Agents’ Intentional Models using Interactive POMDPs
(20181127)Interactive partially observable Markov decision processes (IPOMDPs) provide a principled framework for planning and acting in a partially observable, stochastic and multiagent environment. IPOMDPs augment POMDP beliefs ... 
Inference of Leadership of Coordinated Activity in Time Series
(20181017)When a group of people decides to move somewhere together, who is the initiator who starts moving and everyone follows? Do the group members follow friends around them or do they prefer to follow specific individuals? These ... 
Upper Bounds on the Density of Two Radius Packings of Disks in the Plane
(20180910)A new upper density bound on tworadius packings of disks in the plane is presented at a homogeneity which does not admit compact packings. 
The Frobenius Complexity of Hibi Rings
(20180816)We study the Frobenius complexity of Hibi rings over fields of characteristic p. In particular, for a certain class of Hibi rings (which we call anticanonical level), we compute the limit of the Frobenius complexity as p ... 
Parametric and Nonparametric Approaches for Estimating RiskNeutral Density
(20180605)In this dissertation, we propose one parametric method and one nonparametric method for estimating the riskneutral density, which is a fundamental concept in pricing financial derivatives, risk management, and assessing ... 
Extremal Problems on Directed Hypergraphs and the ErdösGyárfás Ramsey Problem Variant for Graphs
(20180530)Let a 2 to 1 directed hypergraph be a 3uniform hypergraph where every edge has two tail vertices and one head vertex. For any such directed hypergraph F let the nth extremal number of F be the maximum number of edges that ... 
Topological Equivalences of Einfinity Differential Graded Algebras
(20180618)Two DGAs are said to be topologically equivalent when the corresponding Eilenberg–Mac Lane ring spectra are weakly equivalent as ring spectra. Quasiisomorphic DGAs are topologically equivalent, but the converse is not ... 
Topological Ktheory and Invertibility
(20180501)In this dissertation, a theory of topological Ktheory of dgcategories relative to an arbitrary base scheme is developed. This is then used to study the topological Ktheory of Azumaya algebras and relate it to the ... 
ScoreMatching Representative Approach for Big Data Analysis with Generalized Linear Models
(20180710)We propose a fast and efficient strategy, called the representative approach, with linear models and generalized linear models for big data analysis, and in particular for distributed dataset. With a given partitioning of ... 
HARVEY: On Runtime Verifcation of CyberPhysical Spaces
(20180817)Cyberphysical spaces are complex environments with embedded computing and communi cation capabilities, where there’s no clear boundary between digital and physical world. Smart cities or smart buildings are common examples ... 
Shape Theory in Homotopy Theory and Algebraic Geometry
(20180615)This work defines the étale homotopy type in the context of nonarchimedean geometry, in both Berkovich’s and Huber’s formalisms. To do this we take the shape of a site’s associated hypercomplete 1topos. This naturally ... 
Effects of Audio Dilation and Listening Skill Ability for English as a Second Language
(20180615)This project examines the effects of an audio dilation technique to slow the speech rate of audio for English as a Second language individuals, using listening skill assessment tests from the Test of English as a Foreign ... 
Ensuring Privacy in Legacy Web Applications through Multiple Relations Views
(20180606)This thesis is focused on the protection of legacy Web Applications against information leakage as well as the defense against well known attacks such as some form of SQLInjection. Many legacy Web Applications are unsafe ... 
Examples of Isotrivial Elliptic Threefolds over P^2 and Their Discriminants
(20180531)We constructed two elliptic threefold over P^2. We studied their discriminant loci and singular fibers.