Development Of Online Applications Research Articles

Multi-objective squirrel search algorithm for EEG feature selection

Feature selection plays a critical role in the application of Brain Computer Interface (BCI) systems. Many methods have been used to solve the feature selection problem, but they model it as a single-objective problem, considering only classification accuracy or number of features. To close this critical gap, we improve the squirrel search algorithm by combining it with the grid method, and propose a Multi-Objective Squirrel Search Algorithm (MOSSA) to solve the feature selection problem in BCI. We conduct experiments on three publicly available motion imagery datasets, and the experimental results reveal the best classification results of the method on dataset 1. The average classification accuracy of dataset 2 is 96.71%, with the number of selected features reduced to 18 on average. The highest classification accuracy of dataset 3 is 83.57% on the training set and 82.86% on the test set. In addition, we compare MOSSA with other algorithms and the results show the superiority of our proposed method in solving the feature selection problem. Finally, we combine MOSSA with an online application of BCI, where subjects visualize controlling the robot to perform the corresponding actions by the left and right hand movements. The average recognition rate of the three subjects is approximately 70%. In summary, the MOSSA is an effective method for solving the feature selection problem and is useful for the development of online applications of BCI.

Development of an Online Hotel Reservation System in Sri Lanka using Cutting-Edge Technologies

The hotel management system is an important aspect of contemporary hotel life since it assures the hotel's correct operation, making it efficient and enabling the opportunity to reserve a room online. It contains information on the rooms and the hotel as a whole for the staff and administration. This technology eliminates the majority of the paperwork, making it a must-have tool for any modern hotel. The present reservation system is analyzed and improved. The purpose of this paper is to offer a thorough examination of the system. Make an effort to enhance the existing condition in the hotel management industry. In addition, a modest prototype built using cutting-edge technologies MongoDB, Express.js, React.js, and Node.js (MERN stack) will be discussed. This will showcase how the system would operate from the client and administrator sides. The MERN stack is an excellent choice for hotels wishing to develop high-quality web applications. In fact, this stack enables the rapid development of online applications and software in addition to leveraging high-performance and customized technologies. The mentioned system was shown to be significantly more affordable, an open-source program with superior performance, and UI rendering by using these technologies. In addition to assessing the value of an online reservation system for Sri Lanka's hotel industry, this paper will examine how the environment's components should be set up, integrated, and built, as well as how the requirements, design, construction, and test phases of the application development lifecycle should be combined to create an overall system and how a developer would actually go about creating applications that would be used in practical situations.

DIGITAL TECHNOLOGIES IN ONLINE ENGLISH CLASS FOR RAILWAY MECHANICAL STUDENTS DURING COVID19 OUTBREAK

Online learning has opened many innovations and opportunities in developing digital technologies in classroom, especially in language learning. However, in English for Specific Purpose (ESP) like in Railway Mechanical Technology study program, the development of online applications is still limited. Therefore, there is an urgency to conduct study about digital technologies in English class for Railway Mechanical Technology. This study is aimed to describe instructional design of general English course for Railway Mechanical Technology and investigate the learning outcomes of general English course utilizing digital technologies. The data were collected during 2nd semester of 2020/2021 academic year (March – August) in Railway Mechanical Technology study program. There were 24 students participated in this study (91.67% male and 8.33% female). The data were analyzed using Paired-sample t-test, Pearson r correlation, and Spearman rho correlation. The results showed the significant improvement in online English class for Railway Mechanical Technology. Despite the correlation showed linier direction between pretest and posttest, the degree of correlation was low with weak entailment.These results shed light on course design utilizing digital technologies in general English course for Railway Mechanical Technology study program.

INTEGRATION OF CHARACTER EDUCATION INTO ENGLISH LEARNING WITH THE USE OF CLASS DOJO APPLICATION AT NURUL AZMI’S SCHOOL

The research aims to find out the use of Class Dojo application to integrate character education into English learning at Nurul Azmi’s School. This research is a qualitative descriptive study. Data was collected through observation, interview and study documentation. Then data analyzed through three stages, namely data reduction, data presentation, and drawing conclusions . This study results concluded that (1) the ability of teachers to provide online learning through online can quickly develop if they get support from superiors through school policies, especially in conducting online learning. (2) the Class Dojo application really assist teachers in making learning reports; it also provides convenience for leaders in making strategic decisions only for learning purposes in the school as a whole.(3) development of online applications required by teachers and school management so that they can be adapted to the character of each class at Nurul Azmi's school.

Spectroscopic approaches for non-destructive shell egg quality and freshness evaluation: Opportunities and challenges

Shell egg quality and freshness are traditionally assessed by destructive laboratory-level methods, thus restricting the possibilities to be easily guaranteed in the industrial chain. Non-destructive techniques are therefore of paramount importance, giving accuracy, speed, and instantaneous results. Among these techniques, spectroscopy is promising because it would allow the development of on-line applications for shell egg grading, with clear benefits for both industries and consumers. However, there are still few works in the literature about this topic. Thus, this review presents recently published (years 2015–2020) applications of spectroscopy methods (i.e., VIS-NIR, NIR, Raman, microwaves, hyperspectral imaging, pulsed IR thermography) to the non-destructive assessment of shell egg quality and freshness, with the aim of boosting the research in this field giving some directions for the fulfilment of industrial needs. Indeed, spectroscopic techniques have been proven to be useful tools for the evaluation of shell egg quality and freshness. The advances in instrumentation and data analysis allow to predict shell egg quality by non-destructive, fast, and environmentally friendly approaches. However, the industrial implementation still requires robust calibration transfer to simplified hand-held systems for low-cost and easy use.

РОЗВИТОК ІНТЕРНЕТ-ТОРГІВЛІ В ЕПОХУ ЦИФРОВІЗАЦІЇ

The article clarifies the concept of e-commerce and its significance in the modern conditions of the digital economy. It is proposed to consider e-commerce in the modern digitalization environment as a special business model that is rapidly evolving, constantly modernized and has its own characteristics. It is established that business on the Internet should cover the following aspects: establishing contacts with the target audience of customers by attracting attention (advertising, bright site design, etc.), selling goods and services, ensuring full control over payment, delivery and after-sales service. The set of economic, social, electronic-technological, organizational-legal nature factors influencing the spread of e-commerce is generalized. More than ten types of business models suitable for e-commerce have been identified, among the main and most used of which are the following models: B2C – company-consumer; B2B – company-company; C2B – consumer-company; C2C – consumer-consumer. The modern tendencies of formation and development of Internet trade in the world and in Ukraine in the conditions of a viral pandemic are investigated. The factors that will affect the additional growth of online sales in Ukraine are listed in the order of their consideration, among which the following are highlighted: new buyers on the Internet; insulation at home; increase in the frequency of purchases in the month following the isolation; the transition of some people to remote work; growth of online sales of everyday goods; falling purchasing power and consumer activity in the market. Proposals for further development of e-commerce in Ukraine are substantiated, among which are: continued formation of communication and telecommunication infrastructure; revision and harmonization of the current regulatory framework in the field of e-commerce; stimulating the development of online applications for business; organization of events on teaching the Internet and information technology in business; conducting information and educational campaigns among citizens; promoting the development of the electronic money market and the promotion of electronic wallets, etc.

Peer Support in the Treatment of Chronic Pain in Adolescents: A Review of the Literature and Available Resources.

Peer support has found applications beyond the mental health field and is useful for managing several chronic disorders and supporting healthy lifestyle choices. Communication through telephone and the Internet allows for greater access to those who cannot meet in person. Adolescent chronic pain would seem ideally suited to benefit from online peer support groups. Research is lacking, however, to characterize benefit in terms of pain and function, despite a clear desire among adolescents for access to such programs. More rapid development of online applications is needed for peer support, and research into the associated outcomes will be necessary to optimally design such programs.

Present and future of portable/handheld near-infrared spectroscopy in chicken meat industry

Near-infrared spectroscopy is widely applied for characterization of meat products. The improvement of handheld and portable equipment has allowed the development of on-line applications in the food processing industry. Recently, the poultry industry has benefited from the advancement of applications for identification of different characteristics, including chemical composition, identification of different parts and detection of anomalies. In this work, a review of recent applications of handheld and portable near-infrared equipment is presented, reporting the state of the art and providing insights about future applications.

Peer Prediction-Based Trustworthiness Evaluation and Trustworthy Service Rating in Social Networks

With the development of online applications based on social networks, many different approaches have emerged to evaluate the service that these applications provide. Reports made by end users regarding the consumer's experience or opinion are commonly used to rate the quality of different online services. Therefore, ensuring the authenticity of the users' reports, and the detection of malicious users' dishonest reports, have both become important issues to achieve accuracy in the rating of such services. In this paper, we propose and evaluate a private-prior peer prediction-based trustworthy service rating system, which requires users to report their prior and posterior beliefs regarding whether their peers will report a high-quality opinion of the service. The reports are made to a data processing center which evaluates the users' trustworthiness by applying a strictly proper scoring rule, and removes reports received from users whose trustworthiness rating is low. This peer prediction method is compatible with incentives to motivate users to report honestly. In addition, an unreliability index is proposed to identify malicious users, and malfunctioning or unreliable users who have a high error rate in making judgments about quality. Thus, reports with high unreliability values will also be excluded from the service rating system. By combining trustworthiness and unreliability, malicious users face the dilemma that they cannot receive both a high trustworthiness and low unreliability rating simultaneously when their reports are false. Simulation results indicate that the proposed peer prediction-based trustworthy service rating can identify malicious and unreliable behaviors effectively and motivate users to report truthfully, and that a relatively high service rating accuracy is achieved by the proposed system.

The Security of Socio-Technical Systems

The paper deals with the problem of information security of socio-technical systems when developing online applications. The structure of the socio-technical system, its subsystems and the stages of protection the information of such a system are described. The application of the socio-technical approach, its advantages and disadvantages are also studied. The material presented in the paper reveals the approach aimed at improving the efficiency in the development of online applications through the use of social engineering method. The positive factor is the use of feedback by users able to significantly improve existing systems, to reduce the risk of failure of the user from the operation of the remote systems associated with the lack of ease of use and unreliable protection of their personal data. To achieve this goal, we should identify the factors that affect the user’s behavior, as well as prevent users from performing unwanted actions. The creation of an information security system in online applications should help to neutralize the factors that encourage users to use tools to bypass or ignore information security mechanisms. Therefore, the use of social engineering approach in the development of information security systems will contribute to the goal of creating safe and usable applications.

РАЗРАБОТКА ОНЛАЙН-ПРИЛОЖЕНИЯ ДЛЯ ОПРЕДЕЛЕНИЯ ТЕПЛОФИЗИЧЕСКИХ СВОЙСТВ ВЕЩЕСТВ

РАЗРАБОТКА ОНЛАЙН-ПРИЛОЖЕНИЯ ДЛЯ ОПРЕДЕЛЕНИЯ ТЕПЛОФИЗИЧЕСКИХ СВОЙСТВ ВЕЩЕСТВ

Maxima and Octave in Development of Online Applications: Service Based Approach

The paper shows a way for fast development of interactive online applications that can be used in teaching process. It introduces the web service implemented in PHP programming language for two free computer algebra systems Maxima and Octave. It can be later used for building web applications that need to solve some mathematical tasks during their running. The example of such implementation is also shown.