Northumbria University

Displaying 1-16 of 16 results

  • White Papers // Sep 2013

    Cyber Security in the Workplace: Understanding and Promoting Behaviour Change

    Cyber security and the role employee plays in securing information are major concerns for businesses. The aim of this research is to explore employee security behaviors and design interventions that can motivate behavior change. Previous research has focused on exploring factors that influence in-formation security policy compliance; however there are...

    Provided By Northumbria University

  • White Papers // Dec 2012

    Making Early Predictions of the Accuracy of Machine Learning Applications

    The accuracy of machine learning systems is a widely studied research topic. Established techniques such as cross-validation predict the accuracy on unseen data of the classifier produced by applying a given learning method to a given training data set. However, they do not predict whether incurring the cost of obtaining...

    Provided By Northumbria University

  • White Papers // May 2012

    Multimodal Biometric Person Recognition System Based on Fingerprint & Finger-Knuckle-Print Using Correlation Filter Classifier

    Biometrics is an effective technology for personnel identity recognition, but uni-modal biometric systems which use a single trait for recognition will suffer from problems like noisy sensor data, non-universality, lack of distinctiveness of the biometric trait, and spoof attacks. These problems can be tackled by using multi-biometrics in the system....

    Provided By Northumbria University

  • White Papers // Jun 2011

    Transmitter Distribution for MIMO Visible Light Communication Systems

    In the future, buildings will be lit using solid state lighting, particularly white Light Emitting Diodes (LEDs). Solid state lighting is a rapidly expanding area of research due to the reliability of LEDs and the numerous applications possible including Visible Light Communications (VLC), where a white LED is used to...

    Provided By Northumbria University

  • White Papers // Aug 2010

    Performance Evaluation of Radio-Over-Fibre Systems Using Mach-Zehnder Modulator

    This paper investigates the Bit Error Rate (BER) performance of a Radio-over-Fibre (RoF) system utilizing the Binary Phase Shift Keying (BPSK) and quadrature phase shift keying (QPSK) at a Radio Frequency (RF) of 5 GHz. The RF signal is externally modulated using the Mach-Zehnder Modulator (MZM). The effects of noise...

    Provided By Northumbria University

  • White Papers // May 2010

    SOA Gain Uniformity Improvement Employing a Non-Uniform Biasing Technique for Ultra-High Speed Optical Routers

    In this paper, the authors propose a non-uniform biasing technique to improve the uniformity of the Semiconductor Optical Amplifier (SOA) gain for ultra-high speed applications. In ultra-high speed applications, rapid gain recovery of the SOA is necessary to minimize the gain standard deviation and thus reducing system power penalties. A...

    Provided By Northumbria University

  • White Papers // Apr 2010

    Free-Space Optical Communication Employing Polarization Shift Keying Coherent Modulation in Atmospheric Turbulence Channel

    A binary Polarization Shift Keying (2PolSK) scheme with a coherent heterodyne receiver for a Free Space Optical (FSO) link through atmospheric turbulence channel is proposed and discussed. The Maximum Ratio Combining (MRC) and Equal Gain Combining (EGC) spatial diversity techniques have been applied to mitigate the turbulence induced irradiance fluctuation...

    Provided By Northumbria University

  • White Papers // Mar 2010

    The Dynamics of IT Supplier Relationships with Construction SMEs: a Technological Frames Approach

    Knowledge, skills and expertise related to IT management, selection, justification, implementation and adoption of new IT software applications and hardware is always a problem - specifically related to managing effective IT supplier relationships. This paper provides a continuing narrative of a small construction (SMEcon) company's experiences and perspectives managing their...

    Provided By Northumbria University

  • White Papers // Aug 2009

    The Bit Error Performance of Diffuse Indoor Optical Wireless Channel PPM System Employing Artificial Neural Networks for Channel Equalization

    The Bit Error Rate (BER) performance of a Pulse Position Modulation (PPM) scheme for non Line-Of-Sight (LOS) indoor optical links employing channel equalization based on the Artificial Neural Network (ANN) is reported in the paper. Channel equalization is achieved by training a MultiLayer Perceptrons (MLP) ANN. A comparative study of...

    Provided By Northumbria University

  • White Papers // Nov 2008

    Anticipation as Prediction in the Predication of Data Types

    Every object in existence has its type. Every subject in language has its predicate. Every intension in logic has its extension. Each therefore has two levels but with the fundamental problem of the relationship between the two. The formalism of set theory cannot guarantee the two are co-extensive. That has...

    Provided By Northumbria University

  • White Papers // Sep 2008

    Problems Of Interoperability In Information Systems

    The use of first order predicate logic in many information systems may be justified through its completeness. However the work of Godel shows that such systems are undecidable if they rely on formal systems of number and/or sets. For interoperability dyadic higher-order logic is required, which is neither complete nor...

    Provided By Northumbria University

  • White Papers // Jan 2008

    A Holistic Security Architecture for Distributed Information Systems - A Categorical Approach

    Security is increasingly important in modern distributed information systems. Distributed Information Systems (DISs) are free and open systems, characterized by their non-locality. Security for DIS is a higher order activity, related to issues as data integrity and interoperability among complex heterogeneous systems. This proposed holistic security approach requires category theory....

    Provided By Northumbria University

  • White Papers // Sep 2006

    A Prototype Implementation of a Framework for Organising Virtual Exhibitions over the Web

    As the Web becomes increasingly the world's official media, many museums, archives, libraries and cultural heritage centers throughout the world invest in documenting their collections and in publishing their material via the web, making their information accessible on the Internet. Generally, museums use many different styles in presenting their collections...

    Provided By Northumbria University

  • White Papers // Aug 2006

    Storing Linked XML Documents in Object-Relational DBMS

    Currently, several researchers have proposed mapping both structure and constraints of XML documents to an Object-Relational DataBase (ORDB). However, these researches cannot be conducted because of the limited range of constraints in available object-relational DBMSs. The authors therefore propose mapping rules that are practicable in available technologies. Normally, an XML...

    Provided By Northumbria University

  • White Papers // May 2006

    Translating XML Update Language into SQL

    Several techniques for translating XML (extensible Markup Language) query languages into SQL (Structured Query Language) have been proposed, but no work to date translates XML update languages into SQL since XQuery has not provided any update statements. However, there is a suggestion from W3C indicating that an update version of...

    Provided By Northumbria University

  • White Papers // Mar 2006

    A Natural Basis for Interoperability

    Successful interoperability of systems requires a sound basis for activity across levels and up to the highest global level. The interoperability is non-local and subject to the conditions of naturality found in reality. The axiomatic models over the last two centuries can guarantee no reliability at higher levels. Category theory...

    Provided By Northumbria University

  • White Papers // Aug 2009

    The Bit Error Performance of Diffuse Indoor Optical Wireless Channel PPM System Employing Artificial Neural Networks for Channel Equalization

    The Bit Error Rate (BER) performance of a Pulse Position Modulation (PPM) scheme for non Line-Of-Sight (LOS) indoor optical links employing channel equalization based on the Artificial Neural Network (ANN) is reported in the paper. Channel equalization is achieved by training a MultiLayer Perceptrons (MLP) ANN. A comparative study of...

    Provided By Northumbria University

  • White Papers // May 2012

    Multimodal Biometric Person Recognition System Based on Fingerprint & Finger-Knuckle-Print Using Correlation Filter Classifier

    Biometrics is an effective technology for personnel identity recognition, but uni-modal biometric systems which use a single trait for recognition will suffer from problems like noisy sensor data, non-universality, lack of distinctiveness of the biometric trait, and spoof attacks. These problems can be tackled by using multi-biometrics in the system....

    Provided By Northumbria University

  • White Papers // Dec 2012

    Making Early Predictions of the Accuracy of Machine Learning Applications

    The accuracy of machine learning systems is a widely studied research topic. Established techniques such as cross-validation predict the accuracy on unseen data of the classifier produced by applying a given learning method to a given training data set. However, they do not predict whether incurring the cost of obtaining...

    Provided By Northumbria University

  • White Papers // Mar 2010

    The Dynamics of IT Supplier Relationships with Construction SMEs: a Technological Frames Approach

    Knowledge, skills and expertise related to IT management, selection, justification, implementation and adoption of new IT software applications and hardware is always a problem - specifically related to managing effective IT supplier relationships. This paper provides a continuing narrative of a small construction (SMEcon) company's experiences and perspectives managing their...

    Provided By Northumbria University

  • White Papers // Jun 2011

    Transmitter Distribution for MIMO Visible Light Communication Systems

    In the future, buildings will be lit using solid state lighting, particularly white Light Emitting Diodes (LEDs). Solid state lighting is a rapidly expanding area of research due to the reliability of LEDs and the numerous applications possible including Visible Light Communications (VLC), where a white LED is used to...

    Provided By Northumbria University

  • White Papers // May 2010

    SOA Gain Uniformity Improvement Employing a Non-Uniform Biasing Technique for Ultra-High Speed Optical Routers

    In this paper, the authors propose a non-uniform biasing technique to improve the uniformity of the Semiconductor Optical Amplifier (SOA) gain for ultra-high speed applications. In ultra-high speed applications, rapid gain recovery of the SOA is necessary to minimize the gain standard deviation and thus reducing system power penalties. A...

    Provided By Northumbria University

  • White Papers // Aug 2010

    Performance Evaluation of Radio-Over-Fibre Systems Using Mach-Zehnder Modulator

    This paper investigates the Bit Error Rate (BER) performance of a Radio-over-Fibre (RoF) system utilizing the Binary Phase Shift Keying (BPSK) and quadrature phase shift keying (QPSK) at a Radio Frequency (RF) of 5 GHz. The RF signal is externally modulated using the Mach-Zehnder Modulator (MZM). The effects of noise...

    Provided By Northumbria University

  • White Papers // Apr 2010

    Free-Space Optical Communication Employing Polarization Shift Keying Coherent Modulation in Atmospheric Turbulence Channel

    A binary Polarization Shift Keying (2PolSK) scheme with a coherent heterodyne receiver for a Free Space Optical (FSO) link through atmospheric turbulence channel is proposed and discussed. The Maximum Ratio Combining (MRC) and Equal Gain Combining (EGC) spatial diversity techniques have been applied to mitigate the turbulence induced irradiance fluctuation...

    Provided By Northumbria University

  • White Papers // Sep 2013

    Cyber Security in the Workplace: Understanding and Promoting Behaviour Change

    Cyber security and the role employee plays in securing information are major concerns for businesses. The aim of this research is to explore employee security behaviors and design interventions that can motivate behavior change. Previous research has focused on exploring factors that influence in-formation security policy compliance; however there are...

    Provided By Northumbria University

  • White Papers // Aug 2006

    Storing Linked XML Documents in Object-Relational DBMS

    Currently, several researchers have proposed mapping both structure and constraints of XML documents to an Object-Relational DataBase (ORDB). However, these researches cannot be conducted because of the limited range of constraints in available object-relational DBMSs. The authors therefore propose mapping rules that are practicable in available technologies. Normally, an XML...

    Provided By Northumbria University

  • White Papers // Mar 2006

    A Natural Basis for Interoperability

    Successful interoperability of systems requires a sound basis for activity across levels and up to the highest global level. The interoperability is non-local and subject to the conditions of naturality found in reality. The axiomatic models over the last two centuries can guarantee no reliability at higher levels. Category theory...

    Provided By Northumbria University

  • White Papers // Sep 2008

    Problems Of Interoperability In Information Systems

    The use of first order predicate logic in many information systems may be justified through its completeness. However the work of Godel shows that such systems are undecidable if they rely on formal systems of number and/or sets. For interoperability dyadic higher-order logic is required, which is neither complete nor...

    Provided By Northumbria University

  • White Papers // Jan 2008

    A Holistic Security Architecture for Distributed Information Systems - A Categorical Approach

    Security is increasingly important in modern distributed information systems. Distributed Information Systems (DISs) are free and open systems, characterized by their non-locality. Security for DIS is a higher order activity, related to issues as data integrity and interoperability among complex heterogeneous systems. This proposed holistic security approach requires category theory....

    Provided By Northumbria University

  • White Papers // May 2006

    Translating XML Update Language into SQL

    Several techniques for translating XML (extensible Markup Language) query languages into SQL (Structured Query Language) have been proposed, but no work to date translates XML update languages into SQL since XQuery has not provided any update statements. However, there is a suggestion from W3C indicating that an update version of...

    Provided By Northumbria University

  • White Papers // Sep 2006

    A Prototype Implementation of a Framework for Organising Virtual Exhibitions over the Web

    As the Web becomes increasingly the world's official media, many museums, archives, libraries and cultural heritage centers throughout the world invest in documenting their collections and in publishing their material via the web, making their information accessible on the Internet. Generally, museums use many different styles in presenting their collections...

    Provided By Northumbria University

  • White Papers // Nov 2008

    Anticipation as Prediction in the Predication of Data Types

    Every object in existence has its type. Every subject in language has its predicate. Every intension in logic has its extension. Each therefore has two levels but with the fundamental problem of the relationship between the two. The formalism of set theory cannot guarantee the two are co-extensive. That has...

    Provided By Northumbria University