Computer Science (PhD Theses): Recent submissions
Now showing items 61-80 of 298
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Hybrid feature-based transform coding of grey-level images
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2001)The objective of image compression is to achieve the minimum possible bit-rate, within certain bounds of computational complexity, and with a tolerable degree of distortion. In very low bit-rate coding it is generally ... -
Self-organizing resource location and discovery
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2005)Networked applications were originally centered around backbone interhost communication. Over time, communications moved to a client-server model, where inter-host communication was used mainly for routing purposes. As ... -
Adaptive levels of detail for interactive Collision Handling
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2003)Collision Handling has long been a major bottleneck in physically based animation. As scene complexity increases the problem becomes critical enough to prohibit real-time performance in the animation system. Previous ... -
Time Bounded Medium Access Control for ad hoc networks
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2004)The widespread adoption and deployment of wireless local area networking and in particular wireless ad hoc networking poses a number of challenging problems for distributed real-time applications use this wireless technology ... -
Bounding volume hierarchies for level-of-detail collision handling
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2002)Enforcing solidity of objects within simulations is a major computational overhead. Detecting interactions between bodies is a large part of this overhead. Many researchers have used hybrid collision detection algorithms ... -
Naked objects
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2004)The original concept of object-oriented software development was that the objects would be 'behaviouslly-complete' representations of the domain entities that they model. Although object oriented technologies now pervade ... -
TRANSIT: adapting the Internet for mobile & ad hoc operation
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)The current Internet struggles to cope with changing demands. Designed for a static network, the techniques that have evolved to configure devices, assign addresses and handle mobility, have proved inadequate in a mobile ... -
Foundations for semantically enhanced component trading : a component type model
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2005)This thesis introduces the notion of Semantically Enhanced Component Trading (SECT) in order to bring the notion of service discovery, widely used in large-scale networked and distributed systems, into the domain of ... -
Aggregating case-based reasoners in ensembles : an approach in support of explanation
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2003)Among the reasons for the success Case-Based Reasoning (CBR) has achieved in tackling supervised learning problems, is certainly the capability to give a ranking to any case stored in the database depending on its similarity ... -
The Taxy mobility system
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)Mobile agents are entities that have execution lifetimes that axe not confined to a single host. They have the ability to migrate between different hosts in order to execute locally thereby avoiding remote communication. ... -
Secure group communications in emergency ad hoc networks
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)Ad Hoc networks are an ideal way to form interactions between mobile wireless nodes of emergency services from different domains (i.e. organizations or countries). However, due to the frequent topological and membership ... -
Visualisation and simulation of myocardial infarctions from 12-lead ECG
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)Myocardial Infarction (Ml) is one of the main causes of death throughout the world. More commonly known as heart attack, it is caused by the occlusion of one or more of the arteries that supply the heart. Cardiac enzymes ... -
Optical IP switching
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2008)Improvements in the optical transmission technology, over the past fifteen years, have substantially facilitated the development and worldwide deployment of the Internet, by reducing the cost of data transport. The exponential ... -
Bottom-up visual attention for autonomous virtual human animation
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2004)Animating autonomous virtual humans in a plausible manner is a difficult proposition. As social creatures, humans must be able to interact with each other from an early age and communication is often subject to many nuances. ... -
The accommodation of cognitive style in the design of human computer interface
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)How the design of the human computer interface could be varied to accommodate specific cognitive styles is addressed. The area of adaptive versus non-adaptive systems was discussed in Chapter 2. Generally non-adaptive ... -
Intuitive human centric governance of pervasive computing environments
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2007)Pervasive computing proposes that in the future, human beings will be immersed in a technology rich environment, where computing power will be embedded in devices all around us. This thesis examines how such technology ... -
Exploiting commodity parallel hardware for computer graphics applications and architectures
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2007)The processing power available in today's commodity parallel hardw are has enabled realism and detail in graphics that has never before been possible. With the advent of the progrannnable Graphics Processor Unit (GPU), the ... -
Service management in dynamic e-business environments
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)Internet technologies are facilitating the development of an environment where companies are outsourcing activities that are not a part of their core competencies to third-party service providers. Customers and service ... -
A flexible explanation system for case-based reasoning
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)Artificial Intelligence systems have reached a level of sophistication and accuracy which means that they can now be confidently used as decision aids in real world situations. However, although these systems are accurate, ... -
Biometric retrieval of cryptographic keys
(Trinity College (Dublin, Ireland). School of Computer Science & Statistics, 2006)The problem statement addressed in this thesis is the creation of the first biometric key retrieval scheme capable of protecting private keys used in all three types of public-key cryptosystems: those that rely on the ...