Computer Engineering Commons^™

Fufair: A Fuzzy Farsi Information Retrieval System, A. Nayyeri, Farhad Oroumchian

Farhad Oroumchian

Persian (Farsi) is one of the languages of Middle East. There are significant amount of Persian documents available in digital form and even more are created every day. Therefore, there is a necessity to implement Information Retrieval System with high precision for this language. This paper discusses the design, implementation and testing of a Fuzzy retrieval system for Persian called FuFaIR. This system also supports Fuzzy quantifiers in its query language. Tests have been conducted using a standard Persian test corpus called Hamshari. The performance results obtained from FuFaIR are positive and they indicate that the FuFaIR could notably outperform …

Using Owa Fuzzy Operator To Merge Retrieval System Results, H. Amiri, A. Aleahmad, Farhad Oroumchian, C. Lucas, M. Rahgozar

Farhad Oroumchian

With rapid growth of information sources, it is essential to develop methods that retrieve most relevant information according to the user requirements. One way of improving the quality of retrieval is to use more than one retrieval engine and then merge the retrieved results and show a single ranked list to the user. There are studies that suggest combining the results of multiple search engines will improve ranking when these engine are treated as independent experts. In this study, we investigated performance of Persian retrieval by merging four different language modeling methods and two vector space models with Lnu.ltu and …

Comparing Discrete Simulation And System Dynamics: Modeling An Anti-Insurgency Influence Operation, Wayne W. Wakeland, Una E. Medina

Wayne W. Wakeland

This paper contrasts the tradeoffs of modeling the same dynamic problem at a micro scale and at a macro scale of analysis: discrete system simulation (DS) versus continuous system simulation or system dynamics (SD). Both are employed to model the influence of entertainment education on terrorist system decay, with implications for field application. Each method optimizes different design, scope/scale, data availability/accuracy, parameter settings, and system sensitivities. Whether the research served by the computer model is applied or theoretical, DS tends to be useful for understand low-level individual unit/step influences on system change over time, whereas SD tends to shine when …

System Dynamics Implementation Of An Extended Brander And Taylor-Like Easter Island Model, Takuro Uehara, Yoko Nagase, Wayne W. Wakeland

Wayne W. Wakeland

We provide a system dynamics implementation of a dynamic ecological economics model. Dynamic economic models are often constrained to use functions, such as the Cobb-Douglas function, chosen “conveniently” to allow for analytic solutions. The C-D function, however, suffers from its fixed elasticity that does not allow for the substitutability between man-made capital and natural capital to change, which is vital for economic sustainability. Using system dynamics removes this constraint and enables more realistic ecological economics models containing functions not amenable to analytic solution. The base model is the natural resource and population growth model developed by Brander and Taylor (1998) …

Disaster Recovery And Business Continuity Planning: Business Justification, Heather Brotherton

Heather M Brotherton

The purpose of this article is to establish the need for disaster recovery and business continuity planning for information systems. Today’s infrastructure and economic dependence upon information technology is highlighted as a basis for the requirement of disaster recovery and business continuity planning. This planning is stressed as a basic business requirement for any reputable information systems operation. The unique needs of information systems as well as the general background for the subject of disaster recovery and business continuity planning considerations are discussed. Contingency contracts, failover locations, and testing are recommended along with communication protocols. DOI:10.5055/jem.2010.0019

Data Recovery 101, Neeraj Mukhi

Neeraj Mukhi

At some point in time, everyone who owns a computer will experience the trials and tribulations of hard drive failure. The reasons behind it vary, and could include everything from a human error to damages resulting from flood or water. Viruses can play a role as well, along with many other factors. For many years, the need to recover data that has been lost or destroyed has made data recovery such a very valuable asset.

Demonstrating Contradictions In A Graphical User Interface, Umakant Mishra

Umakant Mishra

Designing a GUI is not so easy as it may appear to outside. The developer has to face many difficulties while improving the features of a GUI. In many cases improving one feature of a GUI results in worsening another feature of it, thus leading to a situation known as contradiction in TRIZ. Many such contradictions have been solved by different inventors in the past. We will demonstrate some important contradictions in this article and discuss alternative solutions for each contradiction.

Control System Performance And Efficiency For A Mid-Depth Lagrangian Profiling Float, B. Mcgilvray, C. Roman

Christopher N. Roman

This paper presents the development of a new mid-depth Lagrangian profiling float with a primary emphasis on the control system performance and efficiency. While deep water floats have demonstrated much success in open ocean environments, many are not suited for the additional challenges associated with coastal regions. To study these regions, which are often subject to varying bathymetry within the operating range and higher variations in water density, a more advanced system is required. This new design utilizes pressure and altitude feedback to drive a high volume auto-ballasting system (ABS). The main operating modes of this float include step inputs …

Constrained Stereo Correspondence For 3d Sea-Floor Reconstruction, Gabrielle Inglis, Chris Roman

Christopher N. Roman

No abstract provided.

Fast Energy Loss Computation And Fuzzy-Based Shunt Capacitor Insertion, Philadelphia University

Philadelphia University, Jordan

No abstract provided.

Modeling And Control Of A Wind Farm And Electrolyzer System Connected To An Electrical Gird, Dr. Adel A. Elbaset, Prof. Dr. Omar H. Abdalla

Dr. Adel A. Elbaset

This paper presents modeling and control analysis of a combined Wind-H2 system connected to an electrical grid and supplying a local electric load. The system consists of a wind farm for electricity generation and an electrolyzer to produce hydrogen for a filling station. A computer program has been developed in MATLAB for simulating the operation and control of the integrated system. Energy balances and hydrogen flow balances are calculated for each time step based on a system model and the specified control strategy. The input of this program are hourly wind speed, characteristics of wind turbine generators, hourly load demand, …

A Novel Eight Switches Inverter Topology For Plug-In Hybrid Electric Vehicle, Omar Hegazy, Joeri Van Mierlo

Dr. Eng. Omar Hegazy

In this paper, a novel inverter topology, Eight Switches Inverter (ESI), is proposed for HEV, especially PHEV system to reduce the number of switches, and to achieve high performance during discharging mode, braking mode and charging mode from grid. Thereby, this topology gives the ability to connect the vehicle with grid at home or at work to charge the Energy Storage System (ESS) easily, especially the battery unit. In addition, the cost and the volume of the power electronics unit (PEU) have reduced. In this research, there are two control strategies have tested to validate the performance of the proposed …

Rwanda National Customer Satisfaction Survey: Results And Conclusions, Deogratias Harorimana

Dr Deogratias Harorimana

It can be said that development practice requires more than financial and manpower inputs. Rwanda, in 1994 suffered a Genocide. The Society,collectively and under the leadership of His Excellence Paul Kagame the current elected President of Rwanda came together and designed strategies that would propel Rwanda to a Middle-Income, Private Sector Led Economy by the Year 2020.

In 2009, a client seating in one of the Hotels in a Suburb of Remera, in Kigali City, complained about poor service delivery he was experiencing from the waitress staff.Using his Blackberry message, the client forwarded an email to some of the RDB …

Homotopy Perturbation Algorithm Using Laplace Transformation, Mohammad Madani, Mahdi Fathizade

Mohammad Madani

In this paper, a combinatory method of the Laplace transform and the homotopy perturbation method is proposed to solve non-homogeneous partial differential equations with variable coefficients. The obtained approximate solutions are compared with exact solutions and those obtained by other analytical methods, showing reliability of the present method.

A Graduate Education In Software Management And The Software Business For Mid-Career Professionals, Ray Bareiss, Gladys Mercier

Ray Bareiss

Given the unique nature of the software business, the faculty of Carnegie Mellon University’s Silicon Valley campus concluded that mid-career software professionals would be better served by a tailored master’s degree focusing on software management and more broadly on the business of software than by a typical MBA. Our software management master’s program integrates business, technical, and soft skills to prepare our students for technical leadership in their current companies or in entrepreneurial ventures. Our initial program built on the strengths of Carnegie Mellon’s world-class software engineering education. We targeted students working in large companies, engaged in large-scale enterprise software …

Coaching Via Cognitive Apprenticeship, Ray Bareiss, Martin Radley

Ray Bareiss

At Carnegie Mellon’s Silicon Valley campus we employ a learn by- doing educational approach in which nearly all student learning, and thus instruction, is in the context of realistic, team based projects. Consequently, we have adopted coaching as our predominant teaching model. In this paper we reflect on our experience with the nature of teaching by coaching using a framework derived from Cognitive Apprenticeship, and explain how we employ the techniques it suggests in our teaching. We also discuss a range of instructional tensions that arise in teaching by coaching and present a survey of student attitudes regarding the effectiveness …

An Mpi-Cuda Implementation For Massively Parallel Incompressible Flow Computations On Multi-Gpu Clusters, Dana A. Jacobsen, Julien C. Thibault, Inanc Senocak

Inanc Senocak

Modern graphics processing units (GPUs) with many-core architectures have emerged as general-purpose parallel computing platforms that can accelerate simulation science applications tremendously. While multi-GPU workstations with several TeraFLOPS of peak computing power are available to accelerate computational problems, larger problems require even more resources. Conventional clusters of central processing units (CPU) are now being augmented with multiple GPUs in each compute-node to tackle large problems. The heterogeneous architecture of a multi-GPU cluster with a deep memory hierarchy creates unique challenges in developing scalable and efficient simulation codes. In this study, we pursue mixed MPI-CUDA implementations and investigate three strategies to …

Enterprise Development Policies And Capacity-Building In Science, Technology And Innovation (Sti)-Response To The Issue Note, Deogratias Harorimana

Dr Deogratias Harorimana

Enterprise Development, Investment and Business Climate are all important for economic growth. But what policies, strategies are needed to make economic growth a reality. The author has followed one of the World's fastest reformer and emerging nation in the Heart of Africa-Rwanda. The paper shares lessons and practical aspects related to building an entrepreneurial population, and building a government which is a facilitator of business climate

Explaining Cache Ser Anomaly Using Relative Due Avf Measurement, Arijit Biswas, Charles Recchia, Shubhendu Mukherjee, Vinod Ambrose, Leo Chan, Aamer Jaleel, Mike Plaster, Norbert Seifert

Charles H Recchia

No abstract provided.

Methanol Recovery During Transesterification Of Palm Oil In A Tio2/Al2o3 Membrane Reactor: Experimental Study And Neural Network Modeling, Abdul Aziz Abdul Raman

Abdul Aziz Abdul Raman

High quality palm oil biodiesel can be produced by combination of alkali transesterification and separation processes in a TiO2/Al 2O3 membrane reactor. Due to the small molecular size, methanol molecules are able to pass through the membrane along with the products. Since methanol is one of the process reactants it is necessary to be recovered. Methanol recovery by means of continuous distillation was employed and the influences of different operational parameters including heating temperature permeate flow rate and reactants ratio were investigated. The results indicate that these parameters have significant effects on the rate of methanol recovery. To simulate the …

Survey Report On Training And Spending On Customer Care Services, Deogratias Harorimana Sr

Dr Deogratias Harorimana

In a bid to promote and develop good customer care service in various sectors of Rwandan economy, a survey was conducted to assess progress and trends on customer service capacity building. Although shortcomings are there, there have been efforts and registered trends across the country on service delivery front. Investment in Capacity Building IS happening in certain sectors but this is unevenly distributed. In 2008 companies had started recognizing the significance of good service and cultivate a good working environment and training. From 2009, there was a decline in investment in capacity building in front office and key service delivery …

Value Networks For Developing Mobile Innovations: The Case Of Apple Iphone, Mutaz M. Al-Debei

Dr. Mutaz M. Al-Debei

This paper intuitively utilizes a methodical approach (i.e. VNM Model) to analyze the success of Apple iPhone mobile innovation from a value network perspective. The paper demonstrates, through the case of iPhone, how a powerful and well- designed value network is a critical enabler of innovations in the mobile telecommunications industry. Retrospectively, the paper also discusses key value drivers of successful value networks.

Developing A Unified Framework Of The Business Model Concept, Mutaz M. Al-Debei, David Avison

Dr. Mutaz M. Al-Debei

Recent rapid advances in Information and Communication Technologies (ICTs) have highlighted the rising importance of the Business Model (BM) concept in the field of Information Systems (IS). Despite agreement on its importance to an organization’s success, the concept is still fuzzy and vague, and there is little consensus regarding its compositional facets. Identifying the fundamental concepts, modeling principles, practical functions, and reach of the BM relevant to IS and other business concepts is by no means complete. This paper, following a comprehensive review of the literature, principally employs the content analysis method and utilizes a deductive reasoning approach to provide …

Developing A Decision-Making Framework For Web Service Security Profiles: A Design-Science Paradigm, Mutaz M. Al-Debei, Bachar Alrouh, Gheorghita Ghinea

Dr. Mutaz M. Al-Debei

In this paper, we provide a novel analytical hierarchy process decision-making framework for Web service security profiles. This framework aids in solving the dilemma of which Web service security profile is most fitting in a particular situation. This is because the developed framework allows architects and developers to take informed decisions following a systematic and manageable approach. In developing the framework, we followed the design-science research paradigm within which we incorporated a number of laboratory experiments.

Engaging With Citizens Online: Understanding The Role Of Epetitioning In Local Government Democracy, Mutaz M. Al-Debei, Panagiotis Panagiotopoulos

Dr. Mutaz M. Al-Debei

According to the Local Democracy, Economic Development and Construction Act introduced in 2009, UK local authorities are expected to implement ―a facility for making petitions in electronic form to the authority‖. Motivated by this arrangement, this paper reflects on the findings of a case study investigation conducted with the Royal Borough of Kingston (one of the first local authorities to implement such a service since 2004). Lessons learnt from the case suggest that ePetitions reveal increased potential to enhance local government democracy, but are also shaped by challenging open implementation issues which can highly influence the initiative’s impact. Our conclusions …

The Design And Engineering Of Mobile Data Services:Developing An Ontology Based On Business Model Thinking, Mutaz M. Al-Debei, Guy Fitzgerald

Dr. Mutaz M. Al-Debei

This paper addresses the design and engineering problem related to mobile data services. The aim of the research is to inform and advise mobile service design and engineering by looking at this issue from a rigorous and holistic perspective. To this aim, this paper develops an ontology based on business model thinking. The developed ontology identifies four primary dimensions in designing business models of mobile data services: value proposition, value network, value architecture, and value finance. Within these dimensions, 15 key design concepts are identified along with their interrelationships and rules in the telecommunication service business model domain and unambiguous …

The Design Of Innovative Mobile Artifacts: How To Develop Powerful Value Networks?, Mutaz M. Al-Debei, Guy Fitzgerald

Dr. Mutaz M. Al-Debei

The development of mobile data services and products calls for participation and collaboration amongst many actors with different expertise. However, building powerful value network is challenging and requires a detailed examination of a number of design constructs and their interrelationships. This research provides an intuitive model to help effectively design such networks. The model is illustrated using NTT DoCoMo’s i-mode case. It is argued that the model offers a useful methodical approach for telecoms providers to develop a thriving value network capable of creating significant mobile innovations and benefits.

Rethinking The Business Model Concept With Eparticipation, Mutaz M. Al-Debei, Panagiotis Panagiotopoulos, Guy Fitzgerald, Tony Elliman

Dr. Mutaz M. Al-Debei

Enhancing citizen participation in policy making using Information and Communication Technologies (ICTs) is emerging as a strategic issue for political organisations. ICT-mediated participation, or eParticipation, projects range from the more traditional public sector initiatives, such as petitions and consultations, to attempts at integrating new forms of participatory Web 2.0 media. In this paper, we argue that the potential of ICTs to deliver sustainable eParticipation has not been fully achieved. This is mainly because of the lack of (1) effective coordination at the implementation level, (2) appropriate infrastructure, and (3) effective service design and development. In addressing this gap, we examine …

Economic Design Of Retaining Wall Using Particle Swarm Optimization With Passive Congregation, Mohammad Khajehzadeh, M R., Taha, A., El-Shafie, Mahdiyeh Eslami

Dr. Mahdiyeh Eslami (مهدیه اسلامی)

No abstract provided.

Adaptive Pid Control Based On Rbf Network Approximating The Satellite Clock Thermal Model, Bin Xu

Bin Xu

The accuracy o f t ime information prov ided by sate llite clock g reat ly depends on its frequency stab ili􀀁 ty, w hich is up to the stability o f the co re tempera ture. Th is paper introduces an adaptive PID control for the sate llite c lock system whose mode l is approx imated based on RBF neural netw orks. Simu lation resu lts demonstrate the va lid ity o f the proposed contro.l