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Develop a Detection System for Colour Stego Images through Extracting Colours-Gradient Cooccurrence Matrix
Ahd Aljarf, Faculty of Engineering and Computing, Coventry University
Recently, the concept of ‘Image Steganography’ is became an important issue in the computer
security world. Image steganography simply means hide some secret data into an object. The object
can be a text, an image or a sound, but the most popular cover object used for hidden secret
message is images.
A developed detection system is introduced in this research. The first part of the work includes
creating varieties of stego-images. These stego-images are having different image file formats. Also,
these stego-images have been done using different steganography methods and tools. The created
stego-images are used to train the detection system in the next stage.
On the other hand, the second part of the work includes detecting the hidden data. In order to do so
the colour-gradient co-occurrence matrix (CGCM) is created for all tested images. The CGCM
considers the information of both colour-correlation and gradient among the pixels in an image.
Numbers of image features are extracted from the matrix. The system at this stage targeted the
indexed images. The BMP images with 256 colours have been used to test the system. However,
more image formats are planning to be used.
Later, a classification method will be used to validate the features selected. These features are
needed to differentiate between the clean images and the stego-images.
An Ecosystem for E-learning in Mechatronics:The CLEM project
Antonios Nanos, Faculty of Engineering and Computing, Coventry University
This poster describes some results of the EU Leonardo Lifelong Learning Programme project
CLEM (Cloud E-learning for Mechatronics). Following a European recognition for the need for
updating of vocational education trainers in the area of mechatronics, CLEM set out to develop a
cloud based teaching and learning facility for mechatronics based on the ideas of community,
sharing and Web 2.0. An interesting development has been the creation of remote laboratories
in the cloud. Learners can access such laboratories to help with their practical learning about
mechatronics without need to set up laboratories at their own institutions. On the other hand
the cloud infrastructure enables multiple laboratories to come together virtually to create an
ecosystem for educators and learners. From such a system, educators can pick and mix materials
to create suitable courses for their students. This means that learners can experience different
types of devices and laboratories through the cloud. The paper provides an overview of the
CLEM project, presenting results so far. In addition to the remote laboratories set up using a
Raspberry Pi and Arduino microprocessor structure, this poster also presents information on the
results of a survey and the development of static learning material. It also explains how a holistic
e-learning experience can be obtained through use of static and dynamic material together with
facilities for collaboration and innovation..
Annual Faculty Research Symposium - Abstract
Goodhead Tomvie Abraham, Faculty of Engineering and Computing, Coventry University
As hardware design philosophy shifts from increasing the number of transistors and or increasing the
clock speeds to the current multicore systems, shouldn’t there be a paradigm shift in software
design philosophy? Multicore computers are already becoming pervasive in our daily computing
environment while the scheduling challenges for Grid computing remains a challenge. Given that
advances in computer hardware design (multicores) has automatically extended an open invitation
to a shift in programming paradigm as it is a common knowledge that sequential programming does
not scale well with multicores, neither do parallelism gain from sequential programming; should Grid
scheduling be allowed to suffer the bottlenecks orchestrated by serial schedulers especially when
the number of jobs increases? To avoid this problem hampering Grid scheduling and the growth of
the Grid, it becomes imperative to exploit parallelism and multi-scheduling in Grid computing.
Previous work in Grid scheduling has mostly addressed QoS, Makespan or the scheduling of parallel
jobs and has failed to address the development and adoption of parallel schedulers that can take
advantage of the multicores that is gradually taking over our computing lives. This work deals with
the uses grouping methods to categorize both Grid jobs and Grid machines at Grid sites and employs
the parallelism to multi-schedule Grid jobs and is aimed at exploiting parallelism - optimize the utility
of several processors within a system, harness the advantages of the multicores and also scale Grid
scheduling and sustain the growth of the Grid. Tests against the MinMin, MinMax and
MinMinMinMax algorithms yielded far better scheduling times.
And a Brief Introduction
Computer hardware design philosophy has changed from increasing the number of transistors and
clock speeds - which was good for sequential programming to multicores due largely to advances in
circuit technology but programming model has not changed much to take advantage of this changes
despite the established fact that sequential programming does not scale well with multicores.
Grid computing entails that jobs are submitted by users in a location and processed at different
locations millions of miles away. Grid computing is expanding at an extraordinary pace just as
multicore systems are becoming ever more pervasive, the scheduling of Grid jobs will be hampered
if not scaled in lieu with the two pronged innovation in hardware multicore computing and the
expanding growth in the Grid.
Multischeduling offers the ability to schedule multiple jobs from same source to various computing
resources while Parallelism enhances the optimized use of all processing components within a
To make good the revolution in computer hardware design, it has become imperative for a paradigm
shift in software programming model
A study of evaluation methodologies and impact of STEM Outreach activities
Yamuna Bagiya, Faculty of Engineering and Computing, Coventry University
The government of United Kingdom has identified the uptake of Science, Technology, Engineering
and Mathematics (STEM) subjects into further education as a key factor in ensuring a successful
future for the nation (HM Treasury 2004, The Work Foundation 2011). Also, research conducted by
The Confederation of British Industry (CBI) has predicted that, in the next 5 to ten years, an
additional 2.2 million people will be required in STEM related industry (CBI 2011). However, it has
been indicated that there is a shortage in the supply of STEM graduates (Department of Education
2011, HM Treasury and BIS 2011, Roberts 2002) which will affect the economy negatively.
To address the shortage of STEM graduates, and in order to increase the interest of younger
generation in STEM subjects, many outreach and enrichment initiatives are being designed and
Annual Faculty Research Symposium - Abstract
delivered. Some outreach and enrichment programmes are designed to give students the motivation
and interest in science and mathematics from an early age in order to aid them to take up STEM
related courses at university level (Toland 2011). They create awareness and encourage more
students to take up STEM related courses (Department of Education 2011, Toland 2011). Younger
students especially enjoy making exciting things, taking part in fun activities and experimenting with
different things. The main purpose of developing outreach programmes is that the students can
understand, relate and experience the fun behind STEM subjects (Jeffers et al 2004).
However, so far there are no significant research findings on pedagogy of outreach programmes,
methodology of longitudinal evaluation of different types of outreach activities and their impact.
This paper will highlight the findings of research carried out at Coventry University, on evaluation
strategies and the impact of STEM outreach activities on different widening participation groups.
1.HM Treasury. (2004) Science & Innovation Investment Framework 2004 – 2014: Next steps.
London: HM Treasury .
2.CBI. (2011) Building For Growth: Business priorities for education and skills. London: CBI
3.Roberts, G. (2002) SET for success: The supply of people with science, technology, engineering
and mathematics skills: The report of Sir Gareth Roberts’ Review. London: HM Treasury
4.Toland, A. (2011) Employability Skills Review. Birmingham: The National HE STEM Programme
5.Department of Education. (2011) The STEM cohesion programme: final report. London:
Department of Education
6.Jeffers, A T., Safferman, A G., and Saffermsn S I. (2004) ‘Understanding K-12 Engineering
Outreach Programs’. Journal of professional issues in engineering education and practice 130,
Network Intrusion Detection Systems (NIDS) for Multi Attack Scenarios in Multi-Core
Environments in Computer Networks
Waleed Bul’ajoul, Faculty of Engineering and Computing, Coventry University
With growth of various malicious attacks, especially technology is more dependent on network and
wireless systems, the traditional security tools such as anti-virus and firewalls are not sufficient to
provide the integral, reliable and security free networks. Due to the high and precise detection from
the malicious attacker, intrusion detection is one of the strong technologies that monitors network
traffic and recognize illegal use, misuse of computer system, and malicious attackers.
This study outlines a NIDSs software exploit that utilizes QoS and parallel NIDSs technologies in Cisco
Catalyst Switches to increase NIDSs analytical performance when deployed in high-speed networks.
We have designed a real network to present experiments that use a Snort NIDS to demonstrate the
weaknesses of NIDSs, such as its inability to process multiple packets and its propensity to drop
packets in heavy traffic and high-speed networks without analysing them. We tested Snort’s
performance analysis, gauging the number of packets sent, analysed, dropped, filtered, injected, and
outstanding. We suggest using QoS configuration technologies in a Cisco Catalyst 3560 Series Switch
and parallel Snort NIDSs to improve NIDS performance and to reduce the number of dropped
The proposed research will design and implement a Network Intrusion Detection System(NIDS) to
improve network security in terms of efficiency , effectiveness, performance analysis and detection
Annual Faculty Research Symposium - Abstract
Implementing median filter in 2D medical images using FPGA architecture
Razan Aboabat, Faculty of Engineering and Computing, Coventry University
FPGA becomes commonly used in biomedical application in different fields such as, brain
tumor detection with MRI images whereas its strength comes from the flexibility that
derives from the programmable environment which is the main difference with SIMD. In the
median filter operation, FPGA with pipeline technique is efficient compared with CNAPS and
IMAP-Vision using specific algorithm to optimize the performance by reducing the
comparison times from 30 to 19 in order to achieve efficiency almost by 33%.
The main focus of the research is to solve large-scale image processing problems with a
fast response time with data size of 100 images size of (1024*1024) using PVM message
passing system environment considering synchronization issue between different processes
belonging to the same or different programs in parallel computing.
Educational Game: Giving Tutorial and Exercise for Network Subnetting
Mohammad Adnan Hijji, Faculty of Engineering and Computing, Coventry University
Subnetting is an integral part of the network computing technique, and a very significant process for
the network of any organization, where it plans and arranges the company’s computer network. In
fact, students who studied networking need to practice this concept during and after networking
course, in order to gain and understand this concept effectively. Attracting students to practice
Subnetting technique needs modern and entertaining methods of giving tutorials and exercises.
From this perspective, the idea of this project came up. Hence, this research presents an educational
game which aims to support lecturers in computer networking classes. The proposed game provides
tutorials and exercises regarding the concept of ‘Subnetting technique’ in an entertaining manner.
The design of game takes into account the targeted audience, their pre-required knowledge and
Human Computer Interaction (HCI). The Storyboard’s method was used to design the interfaces
sequence of the game, while Unified Modelling Language (UML) was used to design the software.
The designed framework of the game was implemented by C# programming language. The game
was constructed, tested and evaluated successfully. The evaluation process was through a process of
primary data collection.
Keywords- Educational Game; Subnetting Game; Converting Decimal to Binary Game; Converting
Binary to Decimal Game; IP address classes Game; IP hosts Game
Annual Faculty Research Symposium - Abstract
Investigation of the current E-Learning Situation in Higher Education in Saudi Arabia
Latifah Almuquren, Faculty of Engineering and Computing, Coventry University
The use of IT/ICT in the field of education has become remarkable across many countries. The
unification between these fields (i.e. IT/ICT and education) has enhanced education across several
areas, such income and teaching methods. Public and private organizations are required on-going
development and evaluation in order to find out the most effective approach of education across
various levels of education. In the sight of government's interest in Saudi Arabia, toward the
development in higher education including E-learning, this research aim to investigates the current
status of E-learning in universities within Saudi Arabia through exploring barriers and hurdles that
facing deployment E-learning in universities within Saudi Arabian, undertaken the experiences of the
UK and Australia in E-learning to propose a set of recommendations for the sake of developing Elearning in Saudi Arabian universities. The results indicate that there are (i) lack of applications Elearning in most of universities (ii) and they missed some of the major requirements of E-learning
which aid to configure and implement E-learning, although it has been implemented for more than
five years.
Active Buckling Control for Vehicle Body Structures
James E Trollope, Control Theory and Applications Centre (CTAC), Coventry University
An active buckling control strategy for mechanical structural applications is being developed at the
Control Theory and Applications Centre (CTAC), Coventry University, whereby the structures are
designed to exhibit a natural response phenomenon when subject to external stimuli, e.g. an applied
force. An example of a natural structure is the self-preserving properties of trees where they are
able to automatically flexibly change their shapes in response to dynamic loads, e.g. to counteract
effects of wind and adapt to the variation in humidity levels. Applying such an approach to
mechanical structures provides an opportunity to reduce the mass of current structures, which are
typically over-engineered in order to deal with undesirable crash scenarios.
This poster presents the concept of a novel active buckling control strategy aimed at alleviating the
compatibility problem arising when two vehicles of dissimilar mass and stiffness values encounter a
collision. This approach assumes that the properties of the vehicle body structures can be changed
via actively controlled materials, commonly known as smart materials; in particular the smallest
positive eigenvalue which corresponds to the point at which buckling commences. This approach is
based on a multi-dimensional look-up table combined with fuzzy logic for interpolating between precalculated levels of energy absorption related to the stiffness values. By modelling the force versus
deformation characteristic, the energy to be absorbed is more appropriately apportioned, thus
enhancing vehicle safety.
Annual Faculty Research Symposium - Abstract
Dynamic Resource Allocation for Web Hosting Environment
Olfat Mirza, University of Warwick
Hardware and system resource allocation to e-business web application has been a known challenge
and it is becoming increasingly difficult to allocate resource efficiently beforehand as there is
variation in workload received by these applications that is difficult to predict. Ignoring this fact can
either lead to over-allocating expensive resources inefficiently, or it can lead to have long response
time that anticipated, frequent request timeouts, or unexpected connection closure or system
To mitigate this risk, resources can be re-allocated dynamically bearing in mind the the benefit or
resource re-allocation exceed the cost of the re-allocation. One possible way to achieve this is to
host these applications in virtualised server pools, and dynamically reassign computer resources
between pools to meet the demands on the hosted application. In this work, a combination of the
reactive behaviour of two well-known switching policies (Proportional Switching Policy and
Bottleneck Aware Switching Policy) is proposed with the proactive forecasting of expected workload
using seven forecasting models. These forecast models are to be implemented and test via
simulation to gauge the effectiveness achieved.
Annual Faculty Research Symposium - Abstract