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Subject = Computer Science;
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Displaying Results 1 - 25 of 1406 on page 1 of 57
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Developing Trust In Virtual Software Development Teams
(2010)
Casey, Valentine
Developing Trust In Virtual Software Development Teams
(2010)
Casey, Valentine
Abstract:
Today globally distributed software development has become the norm for many organizations and the popularity of implementing such an approach continues to increase. In these circumstances a strategy often employed is the use of virtual software development teams. Due to the collaborative nature of software development this has proved a difficult and complex endeavor. Research has identified distance in its various forms as an important factor which negatively impacts on global software development and on virtual software team operation in particular. In this context, the aspects of distance have been defined as temporal, geographical, cultural and linguistic. A key element for the success of any team based project is the development of trust and cooperation. Each aspect of distance can negatively impact on the development of trust and hamper cooperation particularly in the virtual team environment. An additional factor which this research identified is the importance and negative...
http://eprints.dkit.ie/180/
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?Drawing Illusions? ? a case study in the incorrectness of diagrammatic reasoning
(1999)
Lemon, Oliver
?Drawing Illusions? ? a case study in the incorrectness of diagrammatic reasoning
(1999)
Lemon, Oliver
Abstract:
TCD-CS-1999-17
In ?Something to Reckon With? [6], a system for diagramming syllogistic inferences using straight line segments is presented (see also Englebretsen [5]). In the light of recent research on the representational power of diagrammatic representation systems (Lemon and Pratt [12, 13]) we point out some problems with the proposal, and indeed, with any proposal for representing logically possible situations diagrammatically. We shall first outline the proposed linear diagrammatic system of Englebretsen [5], and then show by means of counterexamples that it is inadequate as a representation scheme for general logical inferences (the task for which the system is intended). We also show that modifications to the system fail to remedy the problems. The considerations we present are not limited to the particular proposals of Englebretsen [5, 6]; we thus draw a more general moral about the use of spatial relations in representation systems.
http://hdl.handle.net/2262/13012
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'But my subject's different': a web-based approach to supporting disciplinary lifelong learning skills
(2002)
McAvinia, Claire; Oliver, Martin
'But my subject's different': a web-based approach to supporting disciplinary lifelong learning skills
(2002)
McAvinia, Claire; Oliver, Martin
Abstract:
Many new initiatives in Higher Education institutions choose to develop web sites to support their work, not least because web-based delivery of support materials from a central unit can help to deliver development materials via a single point of access, and 'on demand'. But this presents its own difficulties in terms of the selection and structure of generic material, and in making students aware of its existence. In this paper, the problem of designing a centrally managed web site (both in terms of structure and format) that adequately supports students across the institution will be discussed, and a strategy for developing a site that meets departmental needs will be presented, together with a discussion of the impact of this approach on the role of the developer. This is illustrated within the context of supporting Key Skills. 'Key' or 'transferable' skills are now recognised as being essential for most people in work and in life. Development of the...
http://mural.maynoothuniversity.ie/681/
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”Hide and Tweet”: A game to teach schoolchildren about spatial technologies
(2011)
Ciepłuch, Justyna; Ciepłuch, Błażej; Jacob, Ricky; Mooney, Peter
”Hide and Tweet”: A game to teach schoolchildren about spatial technologies
(2011)
Ciepłuch, Justyna; Ciepłuch, Błażej; Jacob, Ricky; Mooney, Peter
Abstract:
As part of the Geotechnology research team at NUI Maynooth we were involved in the preparation and running of various activities in the Summer School on Computer Science for school children aged between 12 to 18 years old. Since year 2009 we have been constantly developing, testing, and deploying some geospatial software applications which were used by the children for activities in the summer school programme. The high level goal of this development was to help school children become more familiar GPS devices and computerbased Location-based services (LBS) technologies which are now playing such a crucial role in today’s Internet connected society. The software applications were used as part of games and tasks for the children. In our paper we shall describe how these games have evolve during these years, the educational aspects and benefits of the game and how both the software components and devices were developed. Overall, children participating in the summerschool provided thei...
http://mural.maynoothuniversity.ie/4988/
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(m, p)-isometric and (m,∞)-isometric operator tuples on normed spaces
(2013)
Hoffmann, Philipp H.W.; Mackey, Michael
(m, p)-isometric and (m,∞)-isometric operator tuples on normed spaces
(2013)
Hoffmann, Philipp H.W.; Mackey, Michael
Abstract:
We generalize the notion of m-isometric operator tuples on Hilbert spaces in a natural way to operator tuples on normed spaces. This is done by defining a tuple analogue of (m, p)-isometric operators, so-called (m, p)-isometric operator tuples. We then extend this definition further by introducing (m,1)-isometric operator tuples and study properties of and relations between these objects.
http://mural.maynoothuniversity.ie/5033/
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A Framework for the Decentralisation and Management of Collaborative Applications in Ubiquitous Computing Environments
(2006)
FEENEY, KEVIN; LEWIS, DAVID; O'SULLIVAN, DECLAN; QUINN, KARL ANDREW; WADE, VINCENT...
A Framework for the Decentralisation and Management of Collaborative Applications in Ubiquitous Computing Environments
(2006)
FEENEY, KEVIN; LEWIS, DAVID; O'SULLIVAN, DECLAN; QUINN, KARL ANDREW; WADE, VINCENT PATRICK
http://hdl.handle.net/2262/27020
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Quartz: Supporting QoS-constrained services in heterogeneous environments
(1998)
CAHILL, VINNY
Quartz: Supporting QoS-constrained services in heterogeneous environments
(1998)
CAHILL, VINNY
Abstract:
This paper describes an architecture that addresses common problems found in systems supporting QoS specification and enforcement, such as lack of flexibility and expressiveness in the specification of requirements and dependencies on specific platforms. The Quartz QoS architecture aims to solve these problems by adopting a highly extensible and platform-independent design.
http://hdl.handle.net/2262/32768
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2010 School of Computing Undergraduate Student Survey.
(2012)
Ferris, Jane
2010 School of Computing Undergraduate Student Survey.
(2012)
Ferris, Jane
Abstract:
This paper summaries the findings from a voluntary online survey distributed to all Computer Science undergraduates (part time and full time) of a large Irish third level institute in 2010. The objective of the survey was to investigate, identify and report the cohorts’ personal circumstances, computing interests, preferred learning methods and reasons for selecting Computer Science as a profession. The survey had a good response rate from most student groups. Identified from the two cohorts of part and full time Computer Science undergraduates are typical students, their personal computing interests, learning motivation and the methods of learning they indicate as most significant.
https://arrow.dit.ie/scschcomcon/112
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HL7 Healthcare Information Management Using Aspect-Oriented Programming Computer-Based Medical Systems
(2009)
CLARKE, SIOBHAN; MUNNELLY, JENNIFER
HL7 Healthcare Information Management Using Aspect-Oriented Programming Computer-Based Medical Systems
(2009)
CLARKE, SIOBHAN; MUNNELLY, JENNIFER
Abstract:
Given the heterogeneity of healthcare software systems, data from each system is often incompatible inhibiting interoperability. To enable the sharing and exchange of healthcare information interoperability standards must be adhered to. Health Level Seven (HL7) is the international standards organisation that promotes and enforces the standardisation of electronic healthcare information to facilitate its exchange and management. Incorporating HL7 functionality into existing applications requires significant modification and intrusive extensions. Using Aspect- Oriented Programming (AOP), we can introduce HL7 functionality into existing applications without the requirement for refactoring or modification. HL7 data formatting affects multiple parts of an application and hence is a ?crosscutting concern?. These concerns which entwine with base functionality introduce complexity and reduce modularity. A second benefit of AOP is its advanced modularisation capabilities which are capable o...
http://hdl.handle.net/2262/36050
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Evaluation of a Domain-Aware Approach to User Model Interoperability
(2012)
O'CONNOR, ALEXANDER; WADE, VINCENT
Evaluation of a Domain-Aware Approach to User Model Interoperability
(2012)
O'CONNOR, ALEXANDER; WADE, VINCENT
http://hdl.handle.net/2262/67208
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Achieving real-time guarantees in mobile wireless ad hoc networks.
(2003)
CAHILL, VINNY
Achieving real-time guarantees in mobile wireless ad hoc networks.
(2003)
CAHILL, VINNY
Abstract:
Timely wireless communication is essential to allow real-time mobile applications, such as communication between mobile robots or inter-vehicle communication to be realized. The real-time event-based communication paradigm has been recognized as an appropriate highlevel communication scheme to connect autonomous components in large distributed control systems [1]. We investigate whether real-time event constraints can be guaranteed in a mobile ad hoc wireless network. In this work in progress paper we present our analysis of the impact of mobile ad hoc wireless networks on achieving real-time guarantees. We introduce our ongoing work on the use of a proactive routing and resource reservation protocol using mobility awareness and prediction to reduce the unpredictability of a dynamic mobile ad hoc wireless network.
http://hdl.handle.net/2262/32771
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Analysis of the joint kinematics of the 5 iron golf swing
(2009)
HAAHR, MADS
Analysis of the joint kinematics of the 5 iron golf swing
(2009)
HAAHR, MADS
Abstract:
The purpose of this study was to identify the performance determining factors of the 5-iron golf swing. Joint kinematics were obtained from thirty male golfers using a twelve camera motion analysis system. Participants were divided into two groups, based on their ball launch speed (high vs. low). Those in the high ball speed group were deemed to be the more skillful group. Statistical analysis was used to identify the variables which differed significantly between the two groups, and could therefore be classified as the performance determining factors. The following factors were important to performance success: (i) the ability of the golfer to maintain a large X Factor angle and generate large X Factor angular velocity throughout the downswing, (ii) maintain the left arm as straight as possible throughout the swing, (iii) utilise greater movement of the hips in the direction of the target and a greater extension of the right hip during the downswing and (iv) greater flexion of both...
http://hdl.handle.net/2262/36130
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Towards real-time event-based communication in mobile ad hoc wireless networks.
(2003)
CAHILL, VINNY
Towards real-time event-based communication in mobile ad hoc wireless networks.
(2003)
CAHILL, VINNY
Abstract:
Most previous work on real-time event-based communication has assumed infrastructure-based networks. The underlying assumption of this work is that application components are stationary and that a fixed network infrastructure exists to facilitate communication between them [1]. Ad hoc wireless networks comprise sets of mobile nodes connected by wireless links that form arbitrary wireless network topologies without the use of any centralized access point. Ad hoc wireless networks are inherently self-creating, selforganizing and self-administering [2]. Such highly mobile, dynamic networks do not satisfy the design assumptions for previous real-time event-based communication.
http://hdl.handle.net/2262/32786
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Distributed reinforcement learning of autonomic behaviour.
(2004)
CAHILL, VINNY
Distributed reinforcement learning of autonomic behaviour.
(2004)
CAHILL, VINNY
Abstract:
This paper introduces Collaborative Reinforcement Learning (CRL), a coordination model for solving system-wide optimisation problems in distributed systems where there is no support for global state. In CRL the autonomic properties of a distributed system emerge from the coordination of individual agents solving discrete optimisation problems using Reinforcement Learning. In the context of an ad hoc routing protocol, we show how system-wide optimisation in CRL can be used to establish and maintain autonomic properties for decentralised distributed systems.
http://hdl.handle.net/2262/32808
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Semantically holistic and personalized views across heterogeneous information sources
(2007)
HAMPSON, CORMAC; CONLAN, OWEN
Semantically holistic and personalized views across heterogeneous information sources
(2007)
HAMPSON, CORMAC; CONLAN, OWEN
Abstract:
A consolidated view of the content within different data repositories would facilitate useful operations such as advanced informational discovery. This paper proposes a methodology and an architecture that uses semantic annotations to enable such holistic views across domain specific information sources. The potential for the personalization of this annotated information is described, and the future work necessary to implement the system is elaborated on.
http://hdl.handle.net/2262/22581
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300 years of copyright: have we gone full circle? On the use of technology to address limitations in distributing public performance broadcast royalties.
(2009)
Healy, Ron; Timoney, Joseph
300 years of copyright: have we gone full circle? On the use of technology to address limitations in distributing public performance broadcast royalties.
(2009)
Healy, Ron; Timoney, Joseph
Abstract:
This paper briefly examines the concept and rationale of Copyright at the time of its inception and considers whether current legislation and, more distinctly, the administration of some of the rights specified by Copyright legislation has created a situation whereby authors of works in the music industry are being adversely affected and even exploited by such schemes thereby completing the circle by returning many authors to the point which made Copyright legislation necessary. This paper also outlines the design and implementation of a completely automatic, open and transparent blind-detection digital audio watermarking system that will enable automatic monitoring and reporting of public performance of both digital and analogue radio and television transmissions using modern computer technology in order to generate accurate royalty distributions to ‘authors’ in order to administer their rights more equitably.
http://mural.maynoothuniversity.ie/1636/
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Power Management for Stationary Machines
(2005)
CAHILL, VINNY
Power Management for Stationary Machines
(2005)
CAHILL, VINNY
Abstract:
This paper examines effective power management of users? stationary desktop PCs in a pervasive computing office environment. The objective being to minimise the building?s electricity consumption while maintaining acceptable desktop PC performance. Current state of the art power management is focused on developing polices for mobile devices, which are ineffective for stationary machines. Effective stationary policies need to obtain context from the user of the machine, but there is a balance between what detail of context is necessary and how much this extra context costs both monetarily and energy wise. We have implemented two location aware policies which detect presence of the user?s Bluetooth enabled mobile phone. Trial results indicate that with these policies it is possible to get within 8% of optimal energy consumption with little performance degrade. However, this is the best case and the results are dependent on the user?s usage patterns and the geographical layout of the o...
http://hdl.handle.net/2262/32546
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3D perception of numerical hologram reconstructions enhanced by motion and stereo
(2010)
Näsänen, Risto; Naughton, Thomas J.; Colomb, Tristan; Emery, Yves
3D perception of numerical hologram reconstructions enhanced by motion and stereo
(2010)
Näsänen, Risto; Naughton, Thomas J.; Colomb, Tristan; Emery, Yves
Abstract:
We investigated the question of how the perception of 3D information of digital holograms reconstructed numerically and presented on conventional displays depends on motion and stereoscopic presentation. Perceived depth in an adjustable random pattern stereogram was matched to the depth in holographic objects. The objects in holograms were a microscopic biological cell and a macroscopic coil. Stereoscopic presentation increased perceived depth substantially in comparison to non-stereoscopic presentation. When stereoscopic cues were weak or absent e.g. because of blur, motion increased perceived depth considerably. However, when stereoscopic cues were strong, the effect of motion was small. In conclusion, for the maximisation of perceived 3D information of holograms on conventional displays, it seems highly beneficial to use the combination of motion and stereoscopic presentation.
http://mural.maynoothuniversity.ie/2327/
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Using group communication to support mobile augmented reality applications
(2002)
MEIER, RENE; CAHILL, VINNY
Using group communication to support mobile augmented reality applications
(2002)
MEIER, RENE; CAHILL, VINNY
Abstract:
Augmented reality and group communication in wireless ad-hoc networks form relatively new fields of research. When using group communication ordering and timeliness requirements are important. Moreover, when using wireless ad-hoc networks, the possibility of network partition is a serious consideration. In this paper we explore these three issues in the context of using group communication to support mobile augmented reality applications. We describe a policy that enables us to handle partitions and failures, while allowing the members in a partition to make progress, although limited by the application?s consistency requirements. We introduce an approach to determining the message ordering requirements needed to maintain a desired level of consistency and timeliness requirements that should be met in order to have the application state correspond to the sequence of events perceived in the real world.
http://hdl.handle.net/2262/32506
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Filtering and scalability in the ECO distributed event model
(2000)
MEIER, RENE; CAHILL, VINNY; HAAHR, MADS
Filtering and scalability in the ECO distributed event model
(2000)
MEIER, RENE; CAHILL, VINNY; HAAHR, MADS
Abstract:
Event-based communication is useful in many application domains, ranging from small, centralised applications to large, distributed systems. Many different event models have been developed to address the requirements of different application domains. One such model is the ECO model which was designed to support distributed virtual world applications. Like many other event models, ECO has event filtering capabilities meant to improve scalability by decreasing network traffic in a distributed implementation. Our recent work in event-based systems has included building a fully distributed version of the ECO model, including event filtering capabilities. This paper describes the results of our evaluation of filters as a means of achieving increased scalability in the ECO model. The evaluation is empirical and real data gathered from an actual event-based system is used. The findings show filters to be highly valuable in making distributed implementations of the model scale, that multica...
http://hdl.handle.net/2262/27080
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Separation of Distributed Real-Time Embedded Concerns with Theme/UML
(2008)
CLARKE, SIOBHAN; CAHILL, VINNY
Separation of Distributed Real-Time Embedded Concerns with Theme/UML
(2008)
CLARKE, SIOBHAN; CAHILL, VINNY
Abstract:
Model-driven engineering (MDE) addresses platform complexity issues by abstracting platformindependent models for subsequent transformation to platform-specific models. This facilitates the design of a single system model and the subsequent generation of multiple model transformations targeted towards specific platforms. However, the increasing complexity of distributed real-time embedded (DRE) systems complicates the development of adequate system models by requiring multiple concerns, some of which may be crosscutting, to be modelled. Separation of concerns, a software engineering technique that decomposes systems into distinct features with minimal overlap, can be used to manage complexity. Aspect-oriented software development (AOSD) is an emerging technique to separate crosscutting concerns in software and has been demonstrated to improve modularity and thereby reduce the complexity of software. In this paper we show how Theme/UML, an aspect-oriented design approach, can be used...
http://hdl.handle.net/2262/26459
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Using stigmergy to co-ordinate pervasive computing environments.
(2004)
Cahill, Vinny; Barron, Peter
Using stigmergy to co-ordinate pervasive computing environments.
(2004)
Cahill, Vinny; Barron, Peter
Abstract:
Pervasive computing environments have proven difficult to develop in a form that supports the integration and organisation of devices and applications in a spontaneous and transparent manner. This is partly due to the highly dynamic and unpredictable nature of these types of environments, and is often further hampered by the limited resources found on devices. In this paper we present a highly decentralized method of organising the components of a pervasive computing environment, supporting spontaneous interaction between entities and providing robust systemwide behavior. Our inspiration for this work stems from nature and the observations made by the French biologist Grasse on how social insects co-ordinate their actions using indirect communication via the environment, a phenomenon that has become known as stigmergy. In the stigmergic approach there are fewer dependences between entities allowing for the incremental construction and improvement of solutions without adversely effec...
http://hdl.handle.net/2262/32828
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A prototype of a social and economic based resource allocation system in grid computing
(2007)
COGHLAN, BRIAN ARTHUR; KENNY, EAMONN; PIERANTONI, GABRIELE
A prototype of a social and economic based resource allocation system in grid computing
(2007)
COGHLAN, BRIAN ARTHUR; KENNY, EAMONN; PIERANTONI, GABRIELE
Abstract:
peer-reviewed
Nowadays the grid community is facing complex challenges. Among them three are particularly interesting: the existence of many different grid middlewares; the increasing complexity of the submitted jobs; and the many different ways in which actors and resources can be arranged. In this paper we propose a combined solution to these problems which is based on the union of two concepts: a metagrid concept that tackles the issues posed by the variety of different middlewares and the complexity of jobs, and a concept of Social Grid Agents that tackles the issue of resource sharing and allocation.
http://hdl.handle.net/2262/16700
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Slicepedia: Automating the Production of Educational Resources from Open Corpus Content
(2012)
WADE, VINCENT
Slicepedia: Automating the Production of Educational Resources from Open Corpus Content
(2012)
WADE, VINCENT
http://hdl.handle.net/2262/67231
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A Comparison of Complex Correspondence Detection Techniques
(2012)
BRENNAN, ROB
A Comparison of Complex Correspondence Detection Techniques
(2012)
BRENNAN, ROB
http://hdl.handle.net/2262/67220
Displaying Results 1 - 25 of 1406 on page 1 of 57
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