- Все статьи 584
Статьи журнала - International Journal of Information Engineering and Electronic Business
Все статьи: 584
Статья
Most of the algorithms implemented in FPGAs used to be fixed-point. Floating-point operations are useful for computations involving large dynamic range, but they require significantly more resources than integer operations. With the current trends in system requirements and available FPGAs, floating-point implementations are becoming more common and designers are increasingly taking advantage of FPGAs as a platform for floating-point implementations. The rapid advance in Field-Programmable Gate Array (FPGA) technology makes such devices increasingly attractive for implementing floating-point arithmetic. Compared to Application Specific Integrated Circuits, FPGAs offer reduced development time and costs. Moreover, their flexibility enables field upgrade and adaptation of hardware to run-time conditions. A 32 bit floating point arithmetic unit with IEEE 754 Standard has been designed using VHDL code and all operations of addition, subtraction, multiplication and division are tested on Xilinx. Thereafter, Simulink model in MAT lab has been created for verification of VHDL code of that Floating Point Arithmetic Unit in Modelsim.
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Статья научная
A low power Test Pattern Generator (TPG) designed by modifying Linear Feedback Shift Register is proposed to produce low power test vectors that are deployed on Circuit under Test (CUT) to slenderize the dynamic power consumption by CUT. The technique involved in generating low power test patterns is performed by increasing the correlativity between the successive vectors; the ambiguity in increasing the similarity between consecutive vectors is resolved by reducing the number of bit flips between successive test patterns. Upon deploying the low power test patterns at the inputs of CUT, slenderizes the switching activities inside CUT that in turn reduces its dynamic power consumption. The resulted low power test vectors are deployed on CUT to obtain fault coverage. The experimental results demonstrate significant power reduction by low power TPG than compared to standard LFSR.
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Статья научная
The conventional voting scheme employs paper-based ballot to verify votes. This voting scheme is insecure due to the attributed shortcomings including ballot stuffing, ballot snatching and voter's impersonation. In this paper, we present the design and development of secure e-voting to ensure a free, fair and credible election where the preference of electorate counts. This proposed system solves the authentication, integrity and confidentiality security issues of e-voting in kiosk and poll site evoting scenarios using unimodal fingerprint biometrics and Advanced Encryption Standard based Wavelet based Crypto-watermarking Approach. The developed system solves: The possibility of blundering voter's authentication, integrity and confidentiality of vote stored in the server. The results after qualitative evaluation of the system with anti-watermarking detectors revealed that the developed secure e-voting system could serve as a platform for the delivery of credible e-election in developing countries with significant digital divides.
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Design of an arbiter for two systems accessing a single DDR3 memory on a reconfigurable platform
Статья научная
The computer memory has been revolutionized in the last 25-30 years, in terms of both capacity and speed of execution. Along with this, even the logic controlling the memory has also become more and more complex and difficult to interface. Usually, memory subsystems will be designed to interact with a single system. Whenever we consider a two system is sharing a common memory, there comes the need for an Arbiter. The major difference between a memory arbiter and a processor scheduler is that the memory arbiter works at a much finer level of granularity. The time taken for the task execution may range from micro to milliseconds, while a RAM controller needs to serve the request in a few nanoseconds. Because of this reason the resource arbiters are usually designed and implemented in hardware rather than in software.
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Designing a Real-Time Data-Driven Customer Churn Risk Indicator for Subscription Commerce
Статья научная
One of the main goals of customer relationship management is to reduce or eliminate “customer churn”, i.e. loss of existing customers. This paper introduces a prototype algorithm to estimate a continuously updated indicator of the probability of an existing customer to cease purchasing from a subscription commerce business. The investigation is focused on the case of repeat consumers of subscription commerce products which require regular replacement or replenishment. The motivation is to help marketers to make targeted proactive retention actions by categorizing regular customers into groups of similar estimated churn risk. The proposed algorithm re-computes the probability of churn for each customer at regular intervals using past purchase transaction data and incorporating subscription-based business logic. We describe the detailed process from data collection and feature engineering to the algorithm’s design. We also present evaluation results of the algorithm’s performance based on a pilot test that took place on a consumables e-commerce business. The results suggest a significant capability of the proposed algorithm in capturing the purchasing intentions of repeat customers, regardless of the risk group they belong to.
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Despeckling of Medical Ultrasound Images: A Technical Review
Статья научная
Acquisition of digital image and preprocessing methods plays a vital role in clinical diagnosis. The ultrasound medical images are more popular than other imaging modalities, due to portable, adequate, harmless and cheaper nature of it. Because of intrinsic nature of speckle noise (signal based noise), ultrasound medical image leads to degradation of the resolution and contrast of the image. Reduction of this signal based noise is helpful for the purpose of visualization of the ultrasound images. The low quality of image is considered as a barrier for the better extraction of features, recognition, analysis and detection of edges. Because of which inappropriate diagnosis may be done by doctor. Thus, speckle noise reduction is essential and preprocessing step of ultrasound images. Analysts survey manifold reduction methods of speckle noise, yet there is no exact method that takes all the limitations into account. In this review paper, we compare filters that are Lee, Frost, Median, SRAD, PMAD, SRBF, Bilateral, Adaptive Bilateral and Multiresolution on medical ultrasound images. The results are compared with parameter PSNR along with the visual inspection. The conclusion is illustrated by filtered images and data tables.
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Detecting Return Value Mismatch during Component Adaptation with Concern of System Performance
Статья научная
Component adaptation becomes a critical problem in component-based software engineering (CBSE). This problem appears during assembling and reusing of components into new system. The interoperability among components needs to use adaptation technique to solve this problem. Usually, there are mismatches between interfaces of reusable components. This research will focus on detecting fully semantic component interface mismatch by proposing a solution including return value match next to other match such as operation name, method of operation and parameter type match. This research just explains return value mismatch that are not considered in other solutions. The proposed solution also concerns about system performance that is neglected in previous solutions by proposing a ‘Detector’ tool that is responsible to assign and delete unwanted functions from reusable component before integration.
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Determination of reproduction accuracy of dot area of irregular structure
Статья научная
The paper deals with the analysis and calculation of the impact of raster element structure on the reproduction accuracy of the area. The process of screening is one of the important stages of preparing images for printing. Depending on the method of forming of an area of a printing element are distinguished: continuous, which is conventionally called analog screening, and screening with their discrete variables - digital screening. Digital screening systems are widely used in computer publishing systems. In the digital screening of forming shape and sizes of raster elements carried out discrete using raster image processor (RIP). A well-known fact is that the value of the dot area is a key information-bearing parameter of discrete screening since reproduction of halftone key in a raster image is carried out by changing the dot area. It is therefore an important and relevant task to determine the dot area.
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Статья научная
Chatbots are a technological leap in conversational services, generating messages to users either following a set of rules to respond based on recognized patterns or training themselves from previous data or conversations. The primary goal is to enable a device to communicate with a user upon receiving natural language user requests using artificial intelligence and machine learning to generate automated responses. Technology is progressively catering to the questions, both in academic and business contexts, such as situations that require agents to investigate the cause of customer dissatisfaction or to recommend products and services. Significance of this research is to reduce the human dependency and improving customer support by providing close to human natural responses using pattern matching and deep learning on the custom-made data. The main objective of this work is to (a) study the existing literature on cutting-edge technologies in chatbot development in terms of research trends, legacy components, techniques, datasets, and domains specifically in e-commerce and (b) to develop a product that fill some of the gaps/missing functionality identified in current frameworks. We have achieved the following, (a) generated small yet generic dataset, which can be used for all types of products, (b) the intents are identified accurately by the bot using deep learning, whenever a user query.
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Developing an App for Improving Access to COVID-19 Information in Underserved Communities
Статья научная
The deployment of mobile health (mHealth) apps can transform healthcare in rural and remote communities worldwide. Rural communities in Zimbabwe have limited access to information that affects their health, economic and social being due to structural and social barriers related to the inaccessibility of traditional media. mhealth apps are a valuable tool to monitor disease outbreaks and provide preventative information to the public. Lack of access to COVID-19 information results in high fatalities and public panic, and it is critical to publish reliable and timely information. The study’s objective was to demonstrate the utility of a mHealth app prototype developed to enhance access to COVID-19 information in rural and remote communities in Zimbabwe. The prototype provides COVID-19 information such as statistics, preventative measures, self-diagnostics, social distancing information, and general hygiene to rural communities with limited access to official information channels on the pandemic. A design science research methodology was used to design, build and evaluate the COVID-19 mHealth app and fulfil the study’s objectives. Thirty potential users participated in the evaluation of the prototype. The evaluation results show that potential users perceived that the prototype was useful, engaging, easy to learn, well designed, and provided relevant information. A strong correlation was observed between the design, engagement, functionality, and learnability. More widespread usability and more representative tests should be conducted to ascertain the efficacy and usability of the app. The study contributes literature on usability studies in developing countries. As more mHealth apps are being developed and deployed, more usability tests will be required to ensure that they are fit for purpose. The paper provides a baseline for developing related health information apps. Policymakers, health practitioners, technologists, and scholars can further investigate the deployment of digital technologies to improve healthcare and control the transmission and spread of COVID-19.
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Development "Acep the Explorer" an Educational Game Introduction Animal Ecosystem
Статья научная
Acep the Explorer is a game about animal ecosystem, this lesson is a must-know lesson for elementary school children who aim to introduce to children who are just beginning to know animals that are foreign to them, so that children can recognize the animals and place them according to their own ecology. Educational games are games designed or created to stimulate thought including increasing concentration and problem solving. This game developed by multimedia development system, start form concept, design, until testing. AI development is also carried out in this game, we use a finite state automata to create enemies that annoy players The result of this research, an educational game about animal ecosystem and the children's response to the use of educational games know animals according to ecosystem is good, children can get to know animals according to their ecosystem. And the AI, the Finite state automata in this game makes the game more challenging, interesting and fun. Because in this game they can learn while playing games and face some obstacles and destroy the enemy hunting device and complete the game. This research contributes to combining AI technology with educational games to make students learning about animal ecosystems more interesting and challenging.
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Development E-commerce Information System of Agriculture in Samarinda
Статья научная
Samarinda village is a village that is predominantly working as a farmer and has a wide range of agricultural products, in addition to the abundance of agricultural products there is a problem of marketing of agricultural products that do not have access to sell their agricultural products. Authors conducted research in order to increase sales and expand marketing in the Village Samarinda through sales system-based Business to the Business and method development using the Research and Development. The results obtained in the form of a web site that can be accessed to serve online sales transaction so that it can increase sales in the village Samarinda.
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Development Information System for Rubber Sap Processing in East Borneo
Статья научная
Information technology is a technology that is growing rapidly today. Technology has a very important role in human life. The impact of the development of information technology is the increasing need for the use of computers. The use of computers in East Borneo (Kalimantan) is also not spared. East Kalimantan is one of the provinces with rubber plantations that have begun to be developed, but unfortunately due to the lack of knowledge and knowledge of the community regarding the management of agricultural products, the sale of rubber latex in East Kalimantan has not developed. Farmers can only sell rubber latex to middlemen at prices below the market. Therefore, the people of East Kalimantan need a forum for promoting agricultural products, so that they can attract buyers from outside the area and can get prices according to the market. To help people in East Kalimantan, in terms of marketing rubber products, a Rubber Sap Processing Website was created. The purpose of this paper is to increase the knowledge of processing and selling rubber products by the farmers while at the same time helping the welfare of the farming community, especially in the East Kalimantan area. The method used is Software Development Life Cycle (SLDC), the result is a website for the introduction and processing of rubber latex in East Kalimantan. The results of this study are the creation of an information system for rubber latex processing that helps farmers sells their harvests in online platform.
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Статья научная
Bandung city is a tourism city in Indonesia, in addition there are historic buildings of the city of Bandung. The importance of knowing history so that history is not forgotten and lost. Augmented technology is technology that can create an interest in knowing something. Therefore, the authors make a mobile application in Bandung based on augmented reality with GPS tracking method, making it easier for those who want to know historical places and explain more interesting and deeper history in the city of Bandung.
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Development and Evaluation of Mobile Telenursing System for Drug Administration
Статья научная
Mobile telenursing is an emerging sub-field of mobile health that proposes remote nursing care provision with the aim of reducing stress on nurses by enabling them to spend more time on direct patient care rather than indirect care. Most existing mobile telenursing systems are limited to a simple phone call and Short Message Service (SMS) alert thereby rendering them inadequate to support indirect patient cares such as remote prescription based on consultant’s advice and monitoring of drug usage adherence. Hence, this research developed a Mobile Telenursing and Drug Administration System (MTS) characterized by support for the aforementioned indirect patient cares. Domain-Driven Design was employed in designing MTS client-server architecture and its framework. The framework was implemented by developing an SMS reminder system and client mobile application which maintains real-time communication with the webserver. The MTS, which supports real-time consultation between nurse-patient and nurse-consultant, was developed for mobile devices running the Android operating system using the framework implemented. The MTS was programmed using JavaScript and Pusher real-time messaging library of the Android development Kits. The performance of the MTS was evaluated through users’ assessment by administering a set of questionnaire on purposively selected 64 nurses; 53 patients chosen from four (4) purposively selected hospitals (General Hospital, New Bussa; Bowen University Teaching Hospital, Ogbomoso; Alimosho General Hospital, Lagos and Ifako-Ijaiye General Hospital, Lagos). The responses obtained from the questionnaires were statistically evaluated to determine MTS suitability for drug usage monitoring, remote prescription, palliative care, injection administration, patients’ clean-up and follow-up treatment using a correlation test. Also, mean effectiveness and mean acceptability of MTS were evaluated using a t-test at 0.05 level of significance. The MTS was deployed on mobile devices running the Android operating system. The results of performance evaluation revealed that MTS recorded suitability values of drug usage monitoring (r = 0.656), remote prescription (r = 0.829), palliative care (r = 0.925), injection administration (r = -0.772), patients’ clean-up (r = -0.841) and follow-up treatment (r = 0.868) of patients at (p < 0.05). Similarly, MTS recorded mean effectiveness and acceptability values of 3.596 and 3.32, 3.770 and 3.36 at (p < 0.05) for nurses and patients, respectively. The research developed MTS which is suitable for the provisioning of remote nursing care and drug administration without breaking basic medical ethics. The system can be adopted for mobile telenursing and drug administration system.
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Статья научная
Appraisal of lecturers’ effectiveness on teaching performance is an administrative duty of educational administrators which is intended to ascertain whether or not lecturers are performing their duty adequately. Most existing appraisal systems (especially in Nigeria) are superior based thus preventing the students that are direct recipients of lecturers’ output to evaluate the teaching competencies of their lecturers. Also, appraisal results that are students’ based are reported questionable in terms of its validity and reliability as the outcome of the evaluation reported biased assessment due to lecturers’ coercion of students into giving falsified evaluation reports or intentional falsification of judgements about a lecturer by sets of students. This study developed a system for students’ appraisal on teaching performance of lecturers (SATP) characterised by support for reduction of students’ partiality and prejudice during appraisal on lecturers’ effectiveness. Domain Driven Design was employed in designing the SATP client-server architecture and its framework. The SATP was programmed using HTML, CSS, JavaScript and PHP. Afterwards, 60 students were allowed to use the system to evaluate 6 lecturers in computer science department, Federal College of Wildlife Management which serves as the purposively selected research domain. The evaluation data obtained from the system were statistically evaluated to determine SATP performance (suitability, effectiveness and ability to detect falsified evaluation) using t-test at 0.10 level of significance. The results of performance evaluation revealed that SATP was found to be visually suitable and effective for lecturers’ evaluation. More so, evaluation data reported as not been falsified by SATP also recorded insignificant differences (∆μ = 0.36, p>0.10) in first and second evaluation while evaluation data reported as been falsified by SATP recorded significant differences (∆μ = 12.22, p<0.10) in first and second appraisal (evaluation). The study concluded that the result of evaluation of lecturers retrieved from the developed SATP is valid and recommend the adoption of the system in tertiary institutions as it will improve the excellence of educators and academics in tertiary institutions.
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Development of A Web based GIS Waste Disposal Management System for Nigeria
Статья научная
Waste management has to do with handling of solid refuse from their sources of generation through storage, collection, transportation, recovery and treatment processes to disposal This research developed a web based GIS waste disposal management system, with aim of achieving an effective waste management system and a spatial view of waste collection locations in any local government area in Nigeria. The system was developed using Extensive Hypertext Markup Language and Cascading Style Sheet (XHTML/CSS), and Asynchronous Java Scripting with XML (AJAX) and the software packages used for the development of the application are Adobe Dreamweaver and Adobe Fireworks, MySQL, Apache Server and PHP scripting. With this waste management system, the locations of all the waste collection tanks in any location will be, monitored, managed and maintained. The use of this system will ease the job of the waste management unit of the local government areas in Nigeria in achieving a clean environment and mitigate the spread of epidemic in a way to ensure safety of all and sundry.
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Статья научная
The paper core idea is to develop a Decision Support System for Health Care Center with primary focus on Patient, Admin and Doctor's authentication using (Radio Frequency Identification) RFID based NFC tags. Paper flow is categorized mainly in four parts. First phase deals with registration and authentication (NFC tags), while the next phase deals with the diagnosis of the diseases based on two Data Mining algorithms NN and BNN. Third phase is about General Check-up of patient in order to examine patient medical history based on heart rate, respiratory rate, sugar level and cholesterol level. Lastly, information about blood donor is kept for facilitating the needy patients. staff to view and update the desired patient's information from hospital system, only by reading the patient's NFC tag.
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Development of SCADA system based on web technologies
Статья научная
The article covers methodology for construction of technological processes management systems using web technologies. The structure of modern management systems was analyzed, the emphasis was made on the higher management layer – SCADA-systems. The main advantages of distributed Web SCADA were presented in comparison to the desktop systems. Review of modern Web SCADA systems was made, their architecture, key components and interactions were investigated. Limitations in regard to application of existing Web SCADA systems to objects that demand constant optimization of management settings were displayed. Implementation of Web SCADA system using Arduino controller, based on the example of the absorption technological process was proposed. Algorithms for collection, storage, processing and visualization of process data were provided, as well as a mathematical model of absorber to calculate control actions. The interaction of SCADA with low-level controller was presented. Software components for SCADA were developed, based on open-source web-technologies such as: user interface (html + js), backend (php), database (mysql). Advantages of both the developed software and SCADA-systems in general were described. Recommendations and possible ways of implementation for Web-SCADA were provided.
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Development of Secure Electronic Cybercrime Cases Database System for the Judiciary
Статья научная
The recent covid-19 pandemic created a barrier to every activity that needed physical interaction and involvement, especially in the judiciary. Careful research of some courts in Nigeria shown that case records are still been manually processed and stored and some courts operate a semi-digital and semi-manual processing pattern, which also has its own shortcoming of preprocessing manual records and converting them into digital records and physical presence is required to access court records. This research develops a secure electronic Cybercrime Cases Database System (eCCDBS), for prosecuted cybercrime in the judicial service in Nigeria. The system will provide an efficient method for collecting, retrieving, preserving, and management of court case records. The Rapid Application Development (RAD) methodology is used for the system development, because of its speed and time friendliness and can be easily restructured to meet the client’s requirement at any point in time during the development life span. RAD can also present a prototype of the final system software to the client. Access control mechanism and secure password hashing were used to ensure the security of the system. The system was implemented and evaluated through deployment and found to have functioned according to the specification. The application subunits of records’ creation, submission, modification, deletion, retrieval, and storage functioned effectively. Hence this system provides a secure online repository specifically for cybercrime case records that have elements of confidentiality, integrity and availability.
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