Browsing College of Computing Theses and Dissertations by Title
Now showing items 1008-1027 of 1071
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Ubiquitous computing : extending access to mobile data
(Georgia Institute of Technology, 1997) -
Ultra-mobile computing: adapting network protocol and algorithms for smartphones and tablets
(Georgia Institute of Technology, 2013-11-15)Smartphones and tablets have been growing in popularity. These ultra mobile devices bring in new challenges for efficient network operations because of their mobility, resource constraints and richness of features. There ... -
Understanding a large-scale IPTV network via system logs
(Georgia Institute of Technology, 2011-07-08)Recently, there has been a global trend among the telecommunication industry on the rapid deployment of IPTV (Internet Protocol Television) infrastructure and services. While the industry rushes into the IPTV era, the ... -
Understanding and circumventing censorship on Chinese social media
(Georgia Institute of Technology, 2017-04-05)Chinese Internet users not only face the most technologically advanced filtering system in the world, the Great Firewall of China, but also are under the watchful eyes of the repressive government that controls every layer ... -
Understanding and defending against internet infrastructures supporting cybecrime operations
(Georgia Institute of Technology, 2015-11-16)Today's cybercriminals must carefully manage their network resources to evade detection and maintain profitable businesses. For example, a rogue online enterprise has to have multiple technical and business components ... -
Understanding and protecting closed-source systems through dynamic analysis
(Georgia Institute of Technology, 2014-08-22)In this dissertation, we focus on dynamic analyses that examine the data handled by programs and operating systems in order to divine the undocumented constraints and implementation details that determine their behavior ... -
Understanding DNS-based criminal infrastructure for informing takedowns
(Georgia Institute of Technology, 2015-08-18)Botnets are a pervasive threat to the Internet and its inhabitants. A botnet is a collection of infected machines that receive commands from the botmaster, a person, group or nation- state, to perform malicious actions. ... -
Understanding social media credibility
(Georgia Institute of Technology, 2017-07-12)Today, social media provide the means by which billions of people experience news and events happening around the world. We hear about breaking news from people we “follow” on Twitter. We engage in discussions about unfolding ... -
Understanding the motion of a human state in video classification
(Georgia Institute of Technology, 2019-03-29)For the last 50 years we have studied the correspondence between human motion and the action or goal they are attempting to accomplish. Humans themselves subconsciously learn subtle cues about other individuals that gives ... -
Understanding the social navigation user experience
(Georgia Institute of Technology, 2009-07-06)A social navigation system collects data from its users--its community--about what they are doing, their opinions, and their decisions, aggregates this data, and provides the aggregated data--community data--back to ... -
Understanding user engagement in immersive and interactive stories
(Georgia Institute of Technology, 2008-09-23)Popular science fiction often proffers the Holodeck vision for future immersive media: a seamless and transparent interface connecting users to a virtual world where they transform into a story character and influence ... -
Understanding visual analysis processes from user interactions using visual analytics
(Georgia Institute of Technology, 2016-11-15)Understanding the visual analysis process taken by people when using a visualization application can help its designers improve the application. This goal is typically achieved by observing usage sessions. Unfortunately, ... -
A unified approach to analogical reasoning
(Georgia Institute of Technology, 1990) -
Universal graph literacy: understanding how blind and low vision students can satisfy the common core standards with accessible auditory graphs
(Georgia Institute of Technology, 2013-04-08)Auditory graphs and active point estimation provide an inexpensive, accessible alternative for low vision and blind K-12 students using number lines and coordinate graphs. In the first phase of this research program, a ... -
Universal multihead automata
(Georgia Institute of Technology, 1974-08) -
Unlocking the urban photographic record through 4D scene modeling
(Georgia Institute of Technology, 2010-07-09)Vast collections of historical photographs are being digitally archived and placed online, providing an objective record of the last two centuries that remains largely untapped. We propose that time-varying 3D models can ... -
Unsupervised Activity Discovery and Characterization for Sensor-Rich Environments
(Georgia Institute of Technology, 2005-11-28)This thesis presents an unsupervised method for discovering and analyzing the different kinds of activities in an active environment. Drawing from natural language processing, a novel representation of activities as bags ... -
Unsupervised discovery of activity primitives from multivariate sensor data
(Georgia Institute of Technology, 2008-07-08)This research addresses the problem of temporal pattern discovery in real-valued, multivariate sensor data. Several algorithms were developed, and subsequent evaluation demonstrates that they can efficiently and accurately ... -
Unsupervised learning of disease subtypes from continuous time Hidden Markov Models of disease progression
(Georgia Institute of Technology, 2015-08-21)The detection of subtypes of complex diseases has important implications for diagnosis and treatment. Numerous prior studies have used data-driven approaches to identify clusters of similar patients, but it is not yet clear ... -
Urban 3D scene understanding from images
(Georgia Institute of Technology, 2018-01-22)Human vision is marvelous in obtaining a structured representation of complex dynamic scenes, such as spatial scene-layout, re-organization of the scene into its constituent objects, support of each object, etc. We also ...
