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University College Dublin
(60 results)-
White Papers
Building Decision Trees From Decision Stumps
March 19, 2010, 12:00am PDT
Decision stumps are simple one layer decision trees using all the same settings as the typical decision trees. However, most decision stumps are not useful in prediction on their own. To produce...
Provided by University College Dublin
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White Papers
Data Masking With Classical Ciphers
March 19, 2010, 12:00am PDT
Data masking and protection is an essential part of data processing. With easy access to data, encryption of sensitive information is now a critical part of the data process especially with...
Provided by University College Dublin
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White Papers
Remote Asynchronous Collaborative Web Search
March 24, 2009, 12:00am PDT
Web search is often an inherently collaborative task and therefore Collaborative Web Search (CWS) has taken on a new meaning. Despite the absence of explicit collaboration features from mainstream...
Provided by University College Dublin
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White Papers
Outsourcing and Firm Productivity
June 1, 2008, 12:00am PDT
I attempt to identify a causal link between the outsourcing of parts of the production process and firm productivity for a large panel of Irish manufacturing firms. Outsourcing is taken to mean...
Provided by University College Dublin
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White Papers
Trust-Enhanced Peer-to-Peer Collaborative Web Search
October 29, 2008, 12:00am PDT
People spend a lot of the time online using web search services, but even the leading search engines frequently fail to deliver relevant results for the vague queries that are commonplace among...
Provided by University College Dublin
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White Papers
Containing Systemic Risk
December 1, 2009, 12:00am PST
Systemic risk refers to the risk of financial system breakdown due to linkages between institutions. This risk cannot be assessed by looking at how individual institutions manage risks but instead...
Provided by University College Dublin
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White Papers
Female Labour Supply And Divorce: New Evidence From Ireland
June 1, 2010, 12:00am PDT
If participation in the labor market helps to secure women's outside options in the case of divorce/separation, an increase in the perceived risk of marital dissolution may accelerate the increase...
Provided by University College Dublin
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White Papers
Risk Attitudes As An Independent Predictor Of Debt
September 17, 2010, 12:00am PDT
This paper examines how attitudes to risk relate to other psychological constructs of personality and consideration of future consequences (a proxy for time preferences) and how risk attitudes...
Provided by University College Dublin
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White Papers
Network Coding With Modular Lattices
March 9, 2010, 12:00am PST
Network coding is a tool for information transmission in networks. A network is considered to be a directed graph, where an edge from a vertex u to a vertex v is drawn, if u is able to send...
Provided by University College Dublin
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White Papers
Distributed Knowledge Map for Mining Data on Grid Platforms
October 1, 2007, 12:00am PDT
Recently, huge datasets representing different applications domains are produced and stored on distributed platforms. These datasets are, generally, owned by different organizations. As a...
Provided by University College Dublin
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White Papers
Scientific Advisory Boards As Social Resources Exploring Their Role, Use, And Impact In The Market Development Activities Of New Ventures
August 28, 2010, 12:00am PDT
This paper in progress paper formulates a research agenda for exploring new ventures' scientific advisory boards as a valuable source of social capital. While the human capital of such boards and...
Provided by University College Dublin
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White Papers
Development Of New Ventures Through Time-A Theoretical Account
August 28, 2010, 12:00am PDT
This paper sets out to conceptually explore the origin, growth and development of a new venture. This new venture development process is explored using ideas from the IMP, Penrose and Loasby and...
Provided by University College Dublin
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White Papers
Scaling Conditional Tail Probability And Quantile Estimators
March 1, 2009, 12:00am PST
A key issue for risk management in practice is to decide the relevant horizon associated with risk measurement. Many different horizons may be relevant from short (e.g. daily) to long (e.g....
Provided by University College Dublin
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Whitepapers
DACoRM: A Coordinated, Decentralized and Adaptive Network Resource Management Scheme
January 10, 2010, 12:00am PST
In order to meet the requirements of emerging demanding services, network resource management functionality that is decentralized, flexible and adaptive to traffic and network dynamics is of...
Provided by University College Dublin
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Whitepapers
Towards Decentralized and Adaptive Network Resource Management
August 8, 2011, 12:00am PDT
Current practices for managing resources in fixed networks rely on off-line approaches, which can be sub-optimal in the face of changing or unpredicted traffic demand. To cope with the limitations...
Provided by University College Dublin
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White Papers
Securing Wireless Sensor Networks: Introducing ASLAN - A Secure Lightweight Architecture for WSNs
June 28, 2010, 12:00am PDT
Wireless sensor networks consist of many small, inexpensive devices that have constraints in coverage, bandwidth, storage resources, communications ability and processing power. Therefore security...
Provided by University College Dublin
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White Papers
Comment On: Electoral Contests, Incumbency Advantages, And Campaign Finance
September 1, 2009, 12:00am PDT
This paper completes Meirowitz (2008) by analyzing the effect of a cap on political campaign spending in an environment where voters have initial preferences over political candidates. The policy...
Provided by University College Dublin
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Whitepapers
Refactoring as Testability Transformation
February 22, 2011, 12:00am PST
This paper briefly reviews the theory of testability transformation and outlines its implications for and relationship to refactoring for testing. The paper introduces testability refactorings, a...
Provided by University College Dublin
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Whitepapers
Making the Case for MORTO: Multi Objective Regression Test Optimization
March 2, 2011, 12:00am PST
This paper argues that regression test optimization problems such as selection and prioritization require multi objective optimization in order to adequately cater for real world regression...
Provided by University College Dublin
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Whitepapers
Why Source Code Analysis and Manipulation Will Always Be Important
June 24, 2010, 12:00am PDT
This paper makes a case for source code analysis and manipulation. The paper argues that it will not only remain important, but that its importance will continue to grow. This argument is partly...
Provided by University College Dublin
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Whitepapers
The Role of Artificial Intelligence in Software Engineering
March 29, 2012, 12:00am PDT
There has been a recent surge in interest in the application of Artificial Intelligence (AI) techniques to Software Engineering (SE) problems. The work is typified by recent advances in Search...
Provided by University College Dublin
-
Whitepapers
Statistical Eigenmode SDMA Transmission for a Two-User Downlink
May 24, 2012, 12:00am PDT
This paper proposes a Statistical-Eigenmode Space Division Multiple-Access (SE-SDMA) transmission for a two-user downlink system where two transmit antennas are equipped at the base station and...
Provided by University College Dublin
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Whitepapers
Valley-Free Violation in Internet Routing - Analysis Based on BGP Community Data
May 24, 2012, 12:00am PDT
The valley-free rule defines patterns of routing paths that allow the Internet Autonomous Systems (AS) to minimize their routing costs through selective announcement of BGP routes. The valley-free...
Provided by University College Dublin
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Whitepapers
A Verification Methodology for the Detection of Spectrally Efficient FDM Signals Generated Using Reconfigurable Hardware
May 24, 2012, 12:00am PDT
Simulation, using a model of a system or process, is widely accepted as a method of qualification and evaluation of complex systems. The success of a simulation depends on the accuracy of user...
Provided by University College Dublin
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Whitepapers
Optimal Pilot Based Frequency-Dependent I/Q Imbalance Compensation for Wideband Direct-Conversion Transmitters
March 12, 2012, 12:00am PDT
Current trends in low-cost and low power consumption transmitters in state-of-the-art wireless systems is to use the direct-conversion principle. Such transmitters, however, suffer severely from...
Provided by University College Dublin
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Whitepapers
Make Mine a Quadruple: Strengthening the Security of Graphical One-Time PIN Authentication
May 21, 2012, 12:00am PDT
Secure and reliable authentication is an essential prerequisite for many online systems, yet achieving this in a way which is acceptable to customers remains a challenge. GrIDsure, a one-time PIN...
Provided by University College Dublin
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Whitepapers
Compress-and-Forward on a Multiaccess Relay Channel With Computation at the Receiver
September 30, 2012, 12:00am PDT
The authors study a system in which two sources communicate with a destination with the help of a half-duplex relay. They consider a decoding strategy, based on the compute-and-forward strategy,...
Provided by University College Dublin
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Whitepapers
Energy-Aware Adaptive Network Resource Management
January 15, 2013, 12:00am PST
Resource over-provisioning is common practice in network infrastructures. Coupled with energy unaware networking protocols, this can lead to periods of resource underutilization and constant...
Provided by University College Dublin
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Whitepapers
Internet-Scale Content Mediation in Information-Centric Networks
September 6, 2012, 12:00am PDT
Given that the vast majority of Internet interactions relate to content access and delivery, recent research has pointed to a potential paradigm shift from the current host-centric Internet model...
Provided by University College Dublin
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White Papers
Dynamic Switching Between Adaptive FEC Protocols for Reliable Multi-Source Streaming
August 14, 2009, 12:00am PDT
Multi-source streaming is essential for the design of a large-scale P2P streaming architecture. In this paper, the authors focus on improving the dependability of multi-source video streaming as...
Provided by University College Dublin
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White Papers
System-Level Performance Evaluation of Multi-Cell Transparent Mode Relay 802.16j Systems
April 1, 2009, 12:00am PDT
In this paper, the system capacity of a multi-cell IEEE 802.16j system operating in transparent mode is investigated. A previous published analytical model is used and incorporates interference...
Provided by University College Dublin
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White Papers
Bandwidth Allocation in DiffServ Enabled Ethernet Passive Optical Networks
May 28, 2008, 12:00am PDT
Ethernet Passive Optical Networks (EPONs) have attracted considerable attention from industry as they offer a simple, highly flexible and cost effective solution to the problem of providing...
Provided by University College Dublin
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White Papers
An Adaptive Optimized RTO Algorithm for Multi-Homed Wireless Environments
March 18, 2009, 12:00am PDT
As a transport layer protocol SCTP uses end to end metrics, such as Retransmission Time Out (RTO), to manage mobility handover. The authors' investigation illustrates that Wireless LAN (WLAN)...
Provided by University College Dublin
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White Papers
An Interference-Aware Analytical Model for Performance Analysis of Transparent Mode 802.16j Systems
October 2, 2008, 12:00am PDT
In this paper, an interference-aware analytical model of IEEE 802.16j systems operating in transparent mode is described. The model can be used to determine the throughput gain that can be...
Provided by University College Dublin
-
White Papers
Development of an IEEE 802.11s Simulation Model for QualNet
November 7, 2008, 12:00am PST
In this paper, an initial variant of a 802.11s simulation model for the QualNet simulator is described. The tool builds on the existing QualNet 802.11 model by adding capabilities suitable for...
Provided by University College Dublin
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White Papers
Path Selection of SCTP Fast Retransmission in Multi-Homed Wireless Environments
June 5, 2008, 12:00am PDT
In heterogeneous wireless network environments, network connections of a device may have a significant differential. This paper studies the effect of path bandwidth differential on the performance...
Provided by University College Dublin
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White Papers
An Analysis of the Performance of an MIH Based Switch Strategy for Heterogeneous Network Mobility
April 1, 2008, 12:00am PDT
The increasingly ubiquitous deployment of wireless networks has created significant opportunities for mobile application developers. The availability of high-capacity, low financial cost networks...
Provided by University College Dublin
-
White Papers
An Analysis of Alterations to the SCTP RTO Calculation Mechanism for WLAN Environments
May 23, 2008, 12:00am PDT
In recent years there has been a significant increase in the availability of wireless and mobile networks capable of supporting IP communication. The diversity of these networks in terms of signal...
Provided by University College Dublin
-
White Papers
SCTP Switchover Performance Issues in WLAN Environments
October 4, 2007, 12:00am PDT
The increased number and diversity of underlying networks have made transparent network migration a necessity. Through its support for multi-homing the Stream Control Transmission Protocol (SCTP)...
Provided by University College Dublin
-
White Papers
Enhancement of Self-Organisation in Wireless Networking Through a Cross-Layer Approach
September 16, 2009, 12:00am PDT
Self-organisation has emerged as a very promising approach to the design, deployment, operation, control and evolution of complex wireless networks. The dominant strictly layered design style may...
Provided by University College Dublin
-
Whitepapers
Internet-Scale Content Mediation in Information-Centric Networks
September 6, 2012, 12:00am PDT
Given that the vast majority of Internet interactions relate to content access and delivery, recent research has pointed to a potential paradigm shift from the current host-centric Internet model...
Provided by University College Dublin
-
Whitepapers
Energy-Aware Adaptive Network Resource Management
January 15, 2013, 12:00am PST
Resource over-provisioning is common practice in network infrastructures. Coupled with energy unaware networking protocols, this can lead to periods of resource underutilization and constant...
Provided by University College Dublin
-
Whitepapers
Compress-and-Forward on a Multiaccess Relay Channel With Computation at the Receiver
September 30, 2012, 12:00am PDT
The authors study a system in which two sources communicate with a destination with the help of a half-duplex relay. They consider a decoding strategy, based on the compute-and-forward strategy,...
Provided by University College Dublin
-
Whitepapers
Make Mine a Quadruple: Strengthening the Security of Graphical One-Time PIN Authentication
May 21, 2012, 12:00am PDT
Secure and reliable authentication is an essential prerequisite for many online systems, yet achieving this in a way which is acceptable to customers remains a challenge. GrIDsure, a one-time PIN...
Provided by University College Dublin
-
Whitepapers
Optimal Pilot Based Frequency-Dependent I/Q Imbalance Compensation for Wideband Direct-Conversion Transmitters
March 12, 2012, 12:00am PDT
Current trends in low-cost and low power consumption transmitters in state-of-the-art wireless systems is to use the direct-conversion principle. Such transmitters, however, suffer severely from...
Provided by University College Dublin
-
Whitepapers
A Verification Methodology for the Detection of Spectrally Efficient FDM Signals Generated Using Reconfigurable Hardware
May 24, 2012, 12:00am PDT
Simulation, using a model of a system or process, is widely accepted as a method of qualification and evaluation of complex systems. The success of a simulation depends on the accuracy of user...
Provided by University College Dublin
-
Whitepapers
Valley-Free Violation in Internet Routing - Analysis Based on BGP Community Data
May 24, 2012, 12:00am PDT
The valley-free rule defines patterns of routing paths that allow the Internet Autonomous Systems (AS) to minimize their routing costs through selective announcement of BGP routes. The valley-free...
Provided by University College Dublin
-
Whitepapers
Statistical Eigenmode SDMA Transmission for a Two-User Downlink
May 24, 2012, 12:00am PDT
This paper proposes a Statistical-Eigenmode Space Division Multiple-Access (SE-SDMA) transmission for a two-user downlink system where two transmit antennas are equipped at the base station and...
Provided by University College Dublin
-
Whitepapers
The Role of Artificial Intelligence in Software Engineering
March 29, 2012, 12:00am PDT
There has been a recent surge in interest in the application of Artificial Intelligence (AI) techniques to Software Engineering (SE) problems. The work is typified by recent advances in Search...
Provided by University College Dublin
-
Whitepapers
Why Source Code Analysis and Manipulation Will Always Be Important
June 24, 2010, 12:00am PDT
This paper makes a case for source code analysis and manipulation. The paper argues that it will not only remain important, but that its importance will continue to grow. This argument is partly...
Provided by University College Dublin
-
Whitepapers
Making the Case for MORTO: Multi Objective Regression Test Optimization
March 2, 2011, 12:00am PST
This paper argues that regression test optimization problems such as selection and prioritization require multi objective optimization in order to adequately cater for real world regression...
Provided by University College Dublin
-
Whitepapers
Refactoring as Testability Transformation
February 22, 2011, 12:00am PST
This paper briefly reviews the theory of testability transformation and outlines its implications for and relationship to refactoring for testing. The paper introduces testability refactorings, a...
Provided by University College Dublin
-
Whitepapers
Towards Decentralized and Adaptive Network Resource Management
August 8, 2011, 12:00am PDT
Current practices for managing resources in fixed networks rely on off-line approaches, which can be sub-optimal in the face of changing or unpredicted traffic demand. To cope with the limitations...
Provided by University College Dublin
-
Whitepapers
DACoRM: A Coordinated, Decentralized and Adaptive Network Resource Management Scheme
January 10, 2010, 12:00am PST
In order to meet the requirements of emerging demanding services, network resource management functionality that is decentralized, flexible and adaptive to traffic and network dynamics is of...
Provided by University College Dublin
-
Whitepapers
On the Scalability of Carrier-Grade Mesh Network Architectures
February 28, 2011, 12:00am PST
The increasing popularity of multi-hop wireless mesh networks, augmented with specific mechanisms required to support carrier-grade services, makes them an attractive alternative to classical...
Provided by University College Dublin
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White Papers
Developing Self-Managing Embedded Systems With ASSL
October 30, 2009, 12:00am PDT
The authors present a new formal approach to the implementation of embedded systems, arrived at by introducing self-management capabilities to the same. They use the ASSL (Autonomic System...
Provided by University College Dublin
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White Papers
Intelligent Power Management Using Multiple Agents
March 8, 2008, 12:00am PST
Intelligent Power Management (IPM) for a Wireless Sensor Network (WSN) is crucial in maximising the operational longevity of the network. An established regime for achieving this is through the...
Provided by University College Dublin
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White Papers
Historical Data Storage for Large Scale Sensor Networks
May 25, 2009, 12:00am PDT
Wireless sensor networks are rapidly finding their way through a plethora of new applications like precision farming and forestry, with increasing network scale, system complexity, and data rate....
Provided by University College Dublin
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White Papers
Managing Mobile-Based Participatory Sensing Communities
October 1, 2007, 12:00am PDT
Participation of mobile phone users in sensorial data collection both from the individual and from the surrounding environment presents a wide range of opportunities for truly pervasive...
Provided by University College Dublin
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White Papers
Large Scale Environmental Monitoring Through Integration of Sensor and Mesh Networks
November 24, 2008, 12:00am PST
Monitoring outdoor environments through networks of wireless sensors has received interest for collecting physical and chemical samples at high spatial and temporal scales. A central challenge to...
Provided by University College Dublin
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White Papers
Software-Driven Sensor Networks for Short-Range Shallow Water Applications
May 13, 2008, 12:00am PDT
Most existing underwater networks target deep and long range oceanic environments, which has led to the design of power hungry and expensive underwater communication hardware. Because of...
Provided by University College Dublin
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White Papers
Octopus: Monitoring, Visualization and Control of Sensor Networks
June 11, 2009, 12:00am PDT
Sensor network monitoring and control are currently addressed separately through specialized tools. However, the high degree of coupling of network state to the physical environment in which the...
Provided by University College Dublin
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White Papers
Behind-the-Scenes of IEEE 802.11a Based Multi-Radio Mesh Networks: A Measurement Driven Evaluation of Inter-Channel Interference
September 7, 2010, 12:00am PDT
To successfully develop IEEE 802.11a based wireless mesh network solutions that can achieve the reliability and capacities required to offer high quality triple play services the use of multiple...
Provided by University College Dublin
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White Papers
On Tree-Based Routing in Multi-Gateway Association Based Wireless Mesh Networks
August 6, 2009, 12:00am PDT
There is an increasing acceptance for Wireless Mesh Networks (WMN) as the potential "Last-mile" access technology running media-rich applications with stringent Quality of Service (QoS)...
Provided by University College Dublin
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White Papers
Delay Tolerant Networks and Spatially Detailed Human Mobility
August 25, 2009, 12:00am PDT
The authors propose a prototype for a real-world, human network proximity experiment with detailed recordings of the position of individuals. Their aim is to provide a comprehensive dataset to...
Provided by University College Dublin
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White Papers
Modelling Periodic Data Dissemination in Wireless Sensor Networks
December 10, 2009, 12:00am PST
Epidemic-based communications, or "Gossiping", provides a robust and scalable method for maintaining a knowledge base in a sensor network faced with an unpredictable network environment. Since...
Provided by University College Dublin
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White Papers
Putting Meaning Into the Network: Some Semantic Issues for the Design of Autonomic Communications Systems
January 1, 2011, 12:00am PST
Traditional network abstractions follow a layered model in which a sub-system interacts with other network components through very narrow interfaces. The authors content that this model is weak...
Provided by University College Dublin
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White Papers
Cross-Layer Self Routing: A Self-Managed Routing Approach for MANETs
August 15, 2008, 12:00am PDT
Mobile Ad hoc NETworks (MANETs) generally adopt a peer-to-peer architecture in which the nodes themselves provide routing and services to the network. Disconnectivity with peer nodes, induced by...
Provided by University College Dublin
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White Papers
Multi Criteria Adaptation Mechanisms in Homological Sensor Networks
October 2, 2008, 12:00am PDT
One fundamental feature of sensor network is unpredictable and this brings one a challenge of how to design an adaptation mechanism to let a sensor network adjust itself based on current "Context"...
Provided by University College Dublin
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White Papers
Self-Management of Routing on Human Proximity Networks
November 12, 2009, 12:00am PST
Many modern network applications, including sensor networks and MANETs, have dynamic topologies that reflect processes occurring in the outside world. These dynamic processes are a challenge to...
Provided by University College Dublin
-
White Papers
Enhancement of Self-Organisation in Wireless Networking Through a Cross-Layer Approach
September 16, 2009, 12:00am PDT
Self-organisation has emerged as a very promising approach to the design, deployment, operation, control and evolution of complex wireless networks. The dominant strictly layered design style may...
Provided by University College Dublin
-
White Papers
SCTP Switchover Performance Issues in WLAN Environments
October 4, 2007, 12:00am PDT
The increased number and diversity of underlying networks have made transparent network migration a necessity. Through its support for multi-homing the Stream Control Transmission Protocol (SCTP)...
Provided by University College Dublin
-
White Papers
An Analysis of Alterations to the SCTP RTO Calculation Mechanism for WLAN Environments
May 23, 2008, 12:00am PDT
In recent years there has been a significant increase in the availability of wireless and mobile networks capable of supporting IP communication. The diversity of these networks in terms of signal...
Provided by University College Dublin
-
White Papers
An Analysis of the Performance of an MIH Based Switch Strategy for Heterogeneous Network Mobility
April 1, 2008, 12:00am PDT
The increasingly ubiquitous deployment of wireless networks has created significant opportunities for mobile application developers. The availability of high-capacity, low financial cost networks...
Provided by University College Dublin
-
White Papers
Path Selection of SCTP Fast Retransmission in Multi-Homed Wireless Environments
June 5, 2008, 12:00am PDT
In heterogeneous wireless network environments, network connections of a device may have a significant differential. This paper studies the effect of path bandwidth differential on the performance...
Provided by University College Dublin
-
White Papers
Development of an IEEE 802.11s Simulation Model for QualNet
November 7, 2008, 12:00am PST
In this paper, an initial variant of a 802.11s simulation model for the QualNet simulator is described. The tool builds on the existing QualNet 802.11 model by adding capabilities suitable for...
Provided by University College Dublin
-
White Papers
An Interference-Aware Analytical Model for Performance Analysis of Transparent Mode 802.16j Systems
October 2, 2008, 12:00am PDT
In this paper, an interference-aware analytical model of IEEE 802.16j systems operating in transparent mode is described. The model can be used to determine the throughput gain that can be...
Provided by University College Dublin
-
White Papers
An Adaptive Optimized RTO Algorithm for Multi-Homed Wireless Environments
March 18, 2009, 12:00am PDT
As a transport layer protocol SCTP uses end to end metrics, such as Retransmission Time Out (RTO), to manage mobility handover. The authors' investigation illustrates that Wireless LAN (WLAN)...
Provided by University College Dublin
-
White Papers
Bandwidth Allocation in DiffServ Enabled Ethernet Passive Optical Networks
May 28, 2008, 12:00am PDT
Ethernet Passive Optical Networks (EPONs) have attracted considerable attention from industry as they offer a simple, highly flexible and cost effective solution to the problem of providing...
Provided by University College Dublin
-
White Papers
System-Level Performance Evaluation of Multi-Cell Transparent Mode Relay 802.16j Systems
April 1, 2009, 12:00am PDT
In this paper, the system capacity of a multi-cell IEEE 802.16j system operating in transparent mode is investigated. A previous published analytical model is used and incorporates interference...
Provided by University College Dublin
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