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How to impruve teaching in discrete mathematics via programming and vice versa

Author(s): Mariyana Raykova,Stoyan Boev / Language(s): English Issue: 1/2018

Nowadays learning mathematics in the university seams like a big challenge, taking in mind the decreasing level of mathematical skills from secondary education and low study motivation. But there is no doubt that learning Computer Science is going hand by hand with learning mathematics generally and Discrete mathematics in particular. In this article we try to propose a possible solution of that problem. As students that are studying Informatics at New Bulgarian University constantly ask as the question “Why should we learn mathematics?”, we came to the idea of putting Discrete Mathematics and Programming together in order to show them some of the reason. The most interesting point in that the students pretend to learn more programming on account of maths is that, their results in maths are much better, than in programming. So we had one more problem to solve. The first problem was how to increase the interest in learning mathematics, and the second was how to improve their programming skills. In order to solve these two problems (and not only them), we proposed a new course in our programs of Informatics and Information Technologies called “Computer labs in discrete mathematics”. In that course we are teaching some basic discrete structures and one of the most popular algorithms from discrete mathematics through programming with C++.

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Early detection of forest fires - standart interfaces and protocols and sensor network and cloud level definition

Author(s): Jugoslav Achkoski,Nikola Kletnikov,Nevena Serafimova,Igorche Karafilovski,Rossitza Goleva / Language(s): English Issue: 1/2018

In this paper we presented full design of the system for monitoring forest which consists of cloud platform, sensor networks and mobile (drone) technologies for data collection and cameras. We first present the advanced design and structural model of an advanced system for monitoring of forest area. This model integrate sensor networks and mobile (drone) technologies for data collection and acquisition of those data at existing Crisis Management Information Systems (CMIS). Then we demonstrate the possibility to map different technological solutions and the main result was the definition of the set of standard interfaces and protocols for network interoperability.

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Teaching data mining techniques to applied business analytics students with the help of interactive hands-on tutorials

Author(s): Penko Ivanov / Language(s): English Issue: 1/2018

This paper discusses a contemporary educational approach for teaching data mining techniques to applied business analytics students with the help of interactive hands-on tutorials. This approach provides for different levels of guidance, depending on the complexity of the task. The most complex technical steps of the data mining process can be automated, allowing students with non-technical backgrounds to understand and appreciate the conceptual purposes without needing to dive into the minutiae of detailed optimization algorithms. The proposed method leverages advanced technologies to enable the delivery of a complete educational product that resonates with students of different backgrounds, and with various preferred learning styles. The author presents his work on the development of interactive hands-on tutorials for teaching data mining techniques directly in the R console for the purposes of the “AD699 Data Mining for Business Analytics” – a graduate course being delivered both online and on-campus by Boston University / Metropolitan College, Department of Administrative Sciences.

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Data analytics for devops effectiveness

Author(s): Alexandrina Ivanova,Penko Ivanov / Language(s): English Issue: 1/2018

This paper discusses the opportunities and challenges associated with the data-driven approach to DevOps. The authors present analytical methods and techniques that can be applied to data collected from the DevOps process, as well as several ways in which that data can be used to improve the enterprises’ development capabilities. The authors include specific recommendations regarding the data that should be collected over time, as well as common data storage best practices for enabling analysis and reporting. Metrics and DevOps effectiveness KPIs are described in the paper as well. As an example of KPI analytics the authors show particular application of machine learning algorithms for classification of new code change requests into cost categories, which facilitates deployment activities optimization and cost reduction. The authors’ proposed approach is explained in the context of use cases at existing internationally recognized leading companies, which run multiple large-scale software development projects simultaneously. In addition, the paper explores the changing role of the DevOps engineer regarding data analytics, and highlights the requisite skills and knowledge for him to be successful in the big data era.

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End-user application for early forest fire detection and prevention

Author(s): Peter Peinl,Micha Heidreich,Ivan Chistov,Jugoslav Achkoski,Nikola Kletnikov,Igorche Karafilovski,Nikola Manev,Rossitza Goleva,Alexandar Savov,Ivelin Andreev / Language(s): English Issue: 1/2018

In this paper, we describe a Web application that has been designed and implemented by Fulda University of Applied Sciences in the context of the ASPires project. The application extends the functionality available to Crisis Management Centers (CMC). Actual readings from sensors installed in the test areas, for example national parks, are made available to CMC personnel, as well as pictures from cameras that are either mounted on stationary observation towers or taken by Unmanned Aerial Vehicles (UAVs) in the area of an actual of supposed forest fire. Data are transmitted to the ASPires cloud and delivered swiftly to the Web application via an open interface. Furthermore, fire alarms raised by novel detection algorithms are forwarded automatically to the application. This clearly improves the potential for the early detection of forest fires in rural areas.

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Blockchain solution for annual evaluation in Bulgarian schools

Author(s): Delyan Keremedchiev,Juliana Peneva / Language(s): English Issue: 1/2018

The educational system in Bulgaria covers twelve grades. The quality of the education is measured at the end of the academic year. Students take written exams in the fourth, seventh and twelfth grade. The evaluation of these exams is concerned with a lot of paper work and documents exchange. The results of the evaluation should be provided to the authorities in a secure and reliable way. With the modern blockchain a school-based distributed computing environment can be created and many of the current difficulties can be overcome. By design, a blockchain is resistant to data modification and provides security and data integrity. In order to create such a blockchain each school has to support a blockchain based peer in its IT infrastructure. The Ministry of Education will be able to access all relevant data in a convenient and secure way. The blockchain technology will prevent manipulation of test results. Reliable information can be provided for interested institutions such as universities and potential employers. In this paper possibilities for blockchain implementation in schools which leads to improvement of Bulgarian school educational system are discussed..

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Seeing the staircase: Reflections on a first semester teaching data mining to business students

Author(s): Gregory Page / Language(s): English Issue: 1/2018

In this paper, the author presents several challenges associated with teaching a technical subject that blends statistics, computer science, and specific subject-matter knowledge to an academically-accomplished but mostly non-technical audience. He also talks about some of the difficulties that he faced as an instructor dealing with three levels of newness: the course was brand new, so there was no prior blueprint upon which to fall back; the concepts presented in the course were completely new to the students; and some of the material was relatively new to him as well. After describing these challenges, he shares several lessons learned regarding instructional material and approaches that succeeded with the audience, as well as some candid reflections about areas in which he can improve future iterations of the course.

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Don't be afraid to commit experiences using github classroom for teaching CS

Author(s): Andrew Wolfe / Language(s): English Issue: 1/2018

Many of us teaching Computer Science are familiar with version control systems, whether from academic experience or from industry. In professional environments, such systems are often viewed as vehicles for delivering a product. However, in a very real sense these systems are also an individual vehicle for delivering their individual work for integration into a product. In this way, the conveyance of the CIS student’s work for grading bears a lot of resemblance to version control. And, of course, students going into a professional environment are likely to be required to use such tools on a daily basis. At the same time there are many drawbacks to teaching computer science or CIS using Blackboard or other learning management systems ("LMS"). The most serious problem is that realistic assignments involve files that depend on other files and on runtime context, like particular folder or initialization files. Such context is lost is the flattened submission format of the LMS. In addition, LMS assignment structures also obstruct the provision of 'sample' or 'starter' files, and of the directory/folder structures often needed to make toolsets work effectively. In order to meet these needs, I decided to use a service called GitHub Classroom in three courses from Fall 2017 to the present. GitHub is well known as a colossal version-control repository server using the git distributed version-control system. (In 2017 GitHub had 24 million users with 67 million version-control repositories.) GitHub Classroom is a service that adapts the usual professional Git workflow to distribute individually to students; it is free to those with certifiable faculty positions. The first course on which I used GitHub Classroom was CS 689, the newly-reworked course "Designing and Implementing a Data Warehouse." However, in the middle of the Spring semester, I also deployed GitHub Classroom on the Term Project for CS 669, "Database Design and Implementation for Business." I found GitHub Classroom to be extremely useful and, with adaptations, intend to use it for future courses. This paper will present my experience as a case study on the mechanics, advantages, and drawbacks of using this service for teaching courses relating to computer science and information systems.

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Приложения за мрежов мониторинг и отстраняване на проблеми в Linux

Author(s): Georgi Petrov,Ivan Bogomilov / Language(s): Bulgarian Issue: 4/2017

This publication provides an overview of network monitoring and troubleshooting methods in IP networks used by network architects and engineers. Knowing some basic tools for testing and monitoring traffic in IP networks in Linux is important in building, expanding and reconfiguring network infrastructure. Integrated, ready-made functional tools in administrative scripts are the basis for creating most effective and powerful tools for checking and troubleshooting network infrastructure.

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Нарастване на заетостта в IT сектора и реализацията на студентите

Author(s): Tereza Stefanova / Language(s): Bulgarian Issue: 3/2016

The article shows the increased demand for IT specialists and the increase of the employment in the ICT sector as well as the realization of the students in professional fields. The article also reflects on the training of students at the Department of Telecommunications of the NBU in one of the most sought after professional fields. The data on changes in employment by economic activity in Bulgaria shown in the article revealed that the biggest increase is in the IT sector. The ten professional fields with the highest number of staff in the future are highlighted. The demand for IT specialists in this country will continue to grow. The article also shows the professional fields that students choose. From the data presented, it can be seen that the employers' demands are from professional fields that differ from the students' choice and this shows that the problem of the lack of sufficiently qualified staff will be strengthened. The article presents data on the realization of the students on the labor market from 10 professional fields. In the article are presented data also for professional field "Communication and Computer Technology" from 5 high schools according to the Bulgarian University Ranking System 2015, as well as the place of the students graduated from this bachelor program at the NBU.

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Основни принципи на обучението по телекомуникации в НБУ

Author(s): Tereza Stefanova / Language(s): Bulgarian Issue: 2/2015

Quality education must be the most important thing for the future engineers. The education in telecommunications at NBU must offer students not only wide knowledge, but also good habits and skills. The realization of education demands such an organization of study processes, in which the basic knowledge, skills and habits make a solid system and can be readily used for studying skills. The principles of educating in telecommunications are strongly connected between them and also help each other. Their using in practice give positive results, the most important of them is the activity of students’ knowledge. On the other hand, not using the principles of education gives a low effectiveness of studying process.

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Въведение в CUDA

Author(s): Georgi Petrov / Language(s): Bulgarian Issue: 2/2015

This publication is an overview of CUDA technology, and more specifically how CUDA allocates memory card memory resources, how CUDA allocates a computing task to computing clusters and separate computing processes. The work presents a general idea of the possibilities of the technology and its possible development in the near future.

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ADDIE модел за разработка на електронно обучително съдържание

Author(s): Ivaylo Blagoev / Language(s): Bulgarian Issue: 2/2015

The process of creating effective e-learning includes: Instructional Design and Instructional Development of e-learning. Design is a solution, and development is an action. The design of the training is a process in which the individual structural elements are organized. The effectiveness of e-learning depends on the preliminary analysis of the situation and learners, the correct definition of learning objectives, the choice of strategies and delivery tools. The aim of the article is to present one of the most popular models for e-learning development - ADDIE, highlighting the main advantages and disadvantages of the model.

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Актуално състояние на изследванията на влиянието на слънчевата активност върху разпространението на радиовълните

Author(s): Anushka Stancheva,Georgi Petrov,Plamen Tsvetkov,Vasil Kadrev,Angel Alexandrov,Bilyana Benkova / Language(s): Bulgarian Issue: 2/2015

This publication reviews the current status and importance of solar activity influence on the radio waves propagation during different conditions. We analyze the worldwide trends and the state of scientific research in this direction as well as the networks for cooperation and exchange of information between stakeholders.

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Телекомуникациите след NGN - новите мрежи на бъдещето NwGN (New generation networks)

Author(s): Margarita Petkova,Vasil Kadrev / Language(s): Bulgarian Issue: 1/2014

The full capabilities and requirements which the architecture of NGN can provide to the modern technologies, applications and services have not yet been reached. However, some limited function levels of the network are beginning to emerge. This requires thinking in the direction of other architectural solutions for the development of networks. An important element in the development of the concept of new generation networks is the identification of steps for a smooth transition from the existing network to the new architecture. The move from technology-oriented to customer-oriented networks is revolutionary. Realizing NWGN will require both tremendous technological advances and progress in governance.

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Иновативни технологии за изграждане на мрежи за достъп до следващо поколение

Author(s): Stela Kostadinova,Rozalina Dimova / Language(s): Bulgarian Issue: 1/2014

The paper analyzes the technologies able to meet the current requirements for the provision of broadband telecommunications services in fixed access networks. The basic principles and evolutionary aspects for the development of modern access networks are examined. The structural organization of optical access networks is analyzed. NGA network technologies have been analysed and options to upgrade the existing networks are proposed.

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Оптимизиране на надежността на корпоративна мрежа

Author(s): Rozalina Dimova,Nikolai Stoyanov,Vasil Kadrev / Language(s): Bulgarian Issue: 1/2014

The paper presents a study of the corporate network reliability depending on the protocols used, the topology and reservation of the network. The results show that reliability of enterprise networks need backup of key network elements at a higher hierarchy level.

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Метод на преподаване по дисциплината "Компютърно проектиране на технологични системи" в Бургаския свободен университет

Author(s): Radostin Dolchinkov / Language(s): Bulgarian Issue: 1/2014

In modern practice, the role of automation systems design and computer graphics, popular with the name CAD systems (Computer Added Design), are of utmost importance. The rapid penetration of CAD systems in design - mechanical, electronic, and construction - is determined by the following: opportunity to quickly create technical solutions multivariate; using libraries of standard parts and assemblies; manipulation of drawings – connection, sampling; compatibility with other graphic systems.

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Съвременни лазерни технологии в компютърната и комуникационна техника

Author(s): Ivan Kolev,Elena Koleva / Language(s): Bulgarian Issue: 1/2014

I. Modern laser technology in computer technologies. II. Modern laser technology in communication equipment. III. Optical computers. Optical information processing. IV. Optical networks. V. Optical solitons. Soliton Optical Communication Systems

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Анализ на подходи за оценка на риска и разработка на модел за оценка на риска за интегрирана вътрешна управленска система

Author(s): Kristian Tomov / Language(s): Bulgarian Issue: 1/2014

Currently, the business world is constantly changing and every day becomes more complicated and more complex. In essence, it is fraught with risk. In recent years, increasing regulatory requirements force companies to spend resources to deal with issues of risk. Properly constituted, risk assessment gives organizations a clear picture of the status of risks in business processes, whether internal or external, imminent or far into the future. The process of risk assessment applied consistently throughout the organization enables better management, identification, assessment and treatment of risks to the business. The present work deals with particular issues related to the risk assessment applied in telecommunication structures.

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