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? Sayisinin rasgeleliğinin sinanmasi

Author(s): Şahin İnanç,H. Kemal Sezen / Language(s): Turkish / Issue: 3/2017

As a part of their simulation work, random numbers are usually generated by computers. The purpose of this work is to test and verify the randomness of the so-called random generator so that it can be used in simulation runs. Additionally, in this study, the acquisition of the number of ? before the randomness tests were mentioned. In this study it is performed that how this calculation method is used, how to divide the calculation into mathematically simpler components, how to program it with the computer program, and how to calculate it as simple as the desired step. In this study, the first 10000 steps of the ? number were obtained and the randomness test was performed with five different randomness tests. The series is made up after the comma next steps of the number of ?. A program in the C # programming language was developed to investigate the randomness of this sequence. The chi-square test, the Kolmogorov-Smirnov test, the poker test, the gap test and the run test were applied to test the randomness.

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3D documentation in archaeological fieldwork: a case study from the site of Metsamor

Author(s): Otto Bagi / Language(s): English / Issue: XXVI/2017

Three-dimensional recording techniques, although growing rapidly in efficiency and applicability for archaeologists, have still not been turned to full account, mainly because they require for the most part expensive equipment and know-how. In this respect, photogrammetry is unique, being relatively cheap and easy to use. The joint Armenian–Polish archaeological project in Metsamor drew on the possibilities of this technology, which is relatively new to archaeological proceedings, in the daily recording system used at the site. The following article discusses the step-by-step application of photogrammetry in field documentation and its positive impact on archaeological work, Metsamor being taken as a case in point.

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3D KARAKTER MODELLEMESİ VE ANİMASYONU AŞAMALARI

Author(s): Can Şahin / Language(s): Turkish / Issue: 55/2019

Technological developments, the computer and the products offered on the Digital Platform and the number of people using them are continuously increased. The power and impact of design are more effective in daily life than in the past, and their impact on individuals and societies is sharpening. Other materials, such as the computer we use in digital environments, should be considered as tools that help the designer to demonstrate their creative skills in the environments that they create. When a well thought-out idea is being digitized, the subject may become unwarranted due to the lack of technical skills, inability to dominate the technical equipment to be used, and the lack of cultural and ethical skills. It is important to note that the creative thinking and idea development of the work is also essential in the study area. Those who possess the power of technology and design can reach people and societies in different geographies to the extent they can control the rapid growth of this system. All people in every age group can be loaded with instantly accessible systems, especially with cartoon technology and desired cultural elements. We aim to consciously consume the individuals and societies with their analytical ideas about their own values.

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3D kinematická analýza bikrosového startu

Author(s): Sylva Hřebíčková,Miriam Kalichová,Romana Labounková / Language(s): Czech / Issue: 1/2012

The paper deals with techniques bicross start. The aim of this study is to analyse particular phases of BMX start through cinematographic metod and to evaluate basic cinematic parameters of first movements. For scanning the picture we used two high-frequency synchronized digital cameras SIMI MOTION Version 7. The bicross start was performed by two representatives of the Czech Republic, one man and one woman. The result of our study is a distribution of start movement to five basic phases. According to kinematic parameters of initial movements we compared differences between start techniques of each tested person.

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4D Printing as an Innovative Technology for Creating Agile, Shape Morphing Products Meeting Individual User Needs

Author(s): Łukasz Wiechetek,Arkadiusz Gola / Language(s): English / Issue: 12.1/2019

3D printing is a quite popular technology, frequently used to create unique threedimensional objects. It has many areas of application: architecture, marketing, art, fashion music, but also marketing and business. In marketing and business, it is mostly used for increasing effectiveness of market research, faster product development, decrease logistics costs, or meet changing, unique customer requirements. Recently we can observe fast development of 3D printing consumables – filaments. Today’s printers can use not only synthetic materials, wood-like materials, resin, rubber, metal, concrete or paper but also new generation of smart materials. As a result of 3D printing development there can be seen a big interest in next printing generation – four-dimensional printing (4D printing). This technique can use a similar hardware as 3D printing but uses special filaments (polymers/hydrogels) so that the printed object can be transformed. Their physical parameters can be changed by adding some energy to the system, and because of that this technology is also called active object printing or shape-morphing systems printing. The aim of the article is to present 4D printing technology, its possibilities of usage and future applications mainly in the area of commerce and logistics. The paper contains brief characteristics of 4D printing technology, description on interesting and promising 4D printing startup projects. At the end of article, the authors present the impact of 4D printing technology on markets and business processes performance.

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5TH GENERATION CELLULAR TECHNOLOGY AND HUMAN RIGHTS

Author(s): Gediminas Bučiūnas / Language(s): English / Issue: 1/2019

The aim of this paper is to identify possible avenues for the application of 5th generation cellular technology as a tool to protect human rights in criminal procedures. The author is going to overview and analyze international and national legal grounds for the usage of this advanced technology in tackling criminal offences.The novelty of this paper is that this type of research has not yet been carried out in depth in either Lithuania or Latvia. The majority of research on advanced technology and human rights was and is still focused on the possible threats to human rights which can be caused by new technologies, especially in the area of communication. But let us consider this area of research from a fresh perspective and thereby raise an important question: How does 5th generation cellular technology help with the protection of human rights during pre-trial investigation? The research of this topic and the answers to the question outlined above will allow us:to build a conceptual approach to the usage of 5th generation cellular technology inthe area of criminal procedure from the perspective of the protection of human rights;to identify specific areas in criminal procedure where new technology can be usedmost successfully in the detection and investigation of criminal offences;to have clear avenues for employing 5th generation cellular technology for better protection of human rights during pre-trial investigation.

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A 3-FACTOR MODEL RELATING COMMUNICATION TO RISK MITIGATION OF EXTENDED INFORMATION SYSTEM FAILOVER

Author(s): Athanasios Podaras / Language(s): English / Issue: 2/2015

This paper aims to analyse the relation between timely and effective communication and risk mitigation of late recovery after an unexpected information system outage in enterprises. An unforeseen information system failure in modern enterprise units, may result to significant operational and financial damage. In such a critical incident, effective communication between the team leaders and the recovery team involved, can minimize or even eliminate this negative impact. An extended information system outage can be perceived as a time deviation from the Maximum Accepted Outage (ΜΑΟ) timeframe, proposed by the business continuity management, according to the value of which dependent business functions may be interrupted without any serious effects to the company. The paper examines the relation between 3 basic factors and the efficient communication between team members. The factors are: timely information distribution, staff availability and network availability. Through the current paper, the author proposes a risk analysis model, based on the Composite Risk Index theory of Risk Management, which can significantly diminish the possibility of an extended information system outage, as well as calculate the extended time required to recover a system when the aforementioned factors emerge in their worst form. The precise calculation of recovery time can be achieved via the execution of business continuity tests which include scenarios, according to which an unexpected system outage coexists with delayed information distribution as well as low staff and network availability.

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A Behavioral Economics Approach to Digitalisation – The Case of a Principles-based Taxonomy

Author(s): Julia M. Puaschunder,Dirk Beerbaum / Language(s): English / Publication Year: 0

A growing body of academic research in the field of behavioural economics, political science and psychology demonstrate how an invisible hand can nudge people’s decisions towards a preferred option. Contrary to the assumptions of the neoclassical economics, supporters of nudging argue that people have problems coping with a complex world, because of their limited knowledge and their restricted rationality. Technological improvement in the age of information has increased the possibilities to control the innocent social media users or penalise private investors and reap the benefits of their existence in hidden persuasion and discrimination. Nudging enables nudgers to plunder the simple uneducated and uninformed citizen and investor, who is neither aware of the nudging strategies nor able to oversee the tactics used by the nudgers (Puaschunder 2017a, b; 2018a, b). The nudgers are thereby legally protected by democratically assigned positions they hold. The law of motion of the nudging societies holds an unequal concentration of power of those who have access to compiled data and coding rules, relevant for political power and influencing the investor’s decision usefulness (Puaschunder 2017a, b; 2018a, b). This paper takes as a case the “transparency technology XBRL (eXtensible Business Reporting Language)” (Sunstein 2013, 20), which should make data more accessible as well as usable for private investors. It is part of the choice architecture on regulation by governments (Sunstein 2013). However, XBRL is bounded to a taxonomy (Piechocki and Felden 2007). Considering theoretical literature and field research, a representation issue (Beerbaum, Piechocki and Weber 2017) for principles-based accounting taxonomies exists, which intelligent machines applying Artificial Intelligence (AI) (Mwilu, Prat and Comyn-Wattiau 2015) nudge to facilitate decision usefulness. This paper conceptualizes ethical questions arising from the taxonomy engineering based on machine learning systems: Should the objective of the coding rule be to support or to influence human decision making or rational artificiality? This paper therefore advocates for a democratisation of information, education and transparency about nudges and coding rules (Puaschunder 2017a, b; 2018a, b).

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A big data lehetséges szerepe a pártpreferencia-becslésekben magyarországi pártok és politikusok Facebook-oldalainak adatai alapján. Módszertani kísérlet

Author(s): Júlia Anna Koltai,Ádám Stefkovics / Language(s): Hungarian / Issue: 2/2018

Over the past few years, elections have shown worldwide that social media plays an increasingly important role in political life, both in politics and in the political activity of voters. Social media sites have become a new domain for the measurement of public opinion, offering many new opportunities. Discourses (such as tweets) and acts (such as likes) can form the basis for an election prediction. Compared to traditional prediction methods, big data-based research can be considerably cheaper and faster and can provide real-time tracking of public opinion. The aim of our paper is to gather international examples and showcase the success and failure of implementing them on Hungarian Facebook data and thus provide researchers with a basis for further investigations. In our analysis we examined whether there is a correlation between the number of likes that Hungarian parties and party leaders get on Facebook and the political poll results conducted in the same time period. The average number of likes per post proved to be the most appropriate indicator for party preferences, showing fairly good correlations in 7 of the measured 12 months. Beside this the indicator is quite volatile, and correlations differ between parties and party leaders.

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A BLENDED-LEARNING APPROACH TO ESP TEACHING: DESIGNING A VIRTUAL PLATFORM

Author(s): Lorena Clara Mihaes,Anda Dimitriu,Irina Bocianu / Language(s): English / Issue: 03/2016

The demand for English courses particularly tailored to specific needs is ever growing in today’s higher education system. We teach a generation of undergraduate students who will most likely use English as a medium of instruction for their master’s degree, whether they decide to apply for one in Romania (the University of Bucharest offers 20 such programmes) or abroad. A greater emphasis, therefore, should be laid on meeting the competence standards required by the Common European Framework of Reference for Languages, so that, upon graduation, the student will be an independent user of general English and have a good mastery of the terminology of his field of study. Since the undergraduate English course spans anywhere from two to five or six semesters, during which time the instructors have the task of bringing students with various language levels up to the same proficiency par - when they would ideally be able to apply for the abovementioned postgraduate programmes, a solution to the problem is offered by digital technologies, which can complement the traditional teaching methods already in use. Based on students’ answers to a questionnaire which led us to conclude that not only are they conversant with the new technologies, but they also consider that their language skills would improve, should the virtual medium be used during the in-class activities, we have devised a rough draft of an online platform specifically designed to facilitate the students’ access to and assimilation of information through online applications.

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A brief report on the relationship between self-control, video game addiction and academic achievement in normal and ADHD students

Author(s): Maryam Haghbin,Fatemeh Shaterian,Davood Hosseinzadeh,Mark D. Griffiths / Language(s): English / Issue: 4/2013

Over the last two decades, research into video game addiction has grown increasingly. The present research aimed to examine the relationship between video game addiction, self-control, and academic achievement of normal and ADHD high school students. Based on previous research it was hypothesized that (i) there would be a relationship between video game addiction, self-control and academic achievement (ii) video game addiction, self-control and academic achievement would differ between male and female students, and (iii) the relationship between video game addiction, self-control and academic achievement would differ between normal students and ADHD students. Methods: The research population comprised first grade high school students of Khomeini-Shahr (a city in the central part of Iran). From this population, a sample group of 339 students participated in the study. The survey included the Game Addiction Scale (Lemmens, Valkenburg & Peter, 2009), the Self-Control Scale (Tangney, Baumeister & Boone, 2004) and the ADHD Diagnostic checklist (Kessler et al., 2007). In addition to questions relating to basic demographic information, students’ Grade Point Average (GPA) for two terms was used for measuring their academic achievement. These hypotheses were examined using a regression analysis. Results: Among Iranian students, the relationship between video game addiction, self-control, and academic achievement differed between male and female students. However, the relationship between video game addiction, self-control, academic achievement, and type of student was not statistically significant. Conclusions: Although the results cannot demonstrate a causal relationship between video game use, video game addiction, and academic achievement, they suggest that high involvement in playing video games leaves less time for engaging in academic work.

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A Business Analytics Shell for Teaching Corporate Decision Making

Author(s): Vladimir Zlatev / Language(s): English / Issue: 1/2014

This paper presents a new approach to the emerging educational curricula of big data business analytics and the needs to teach students how to use data effectively to drive rapid, precise, and profitable analytics-based decisions. The framework consists of interlinked data-inputs, analytics models, and decision-support tools integrated within a proprietary business analytics shell. We demonstrate the capabilities of the system on examples from different functional areas of the enterprise. The objective is to teach students how decision making is enhanced through analytic methods that integrate the volume, velocity, variety, and veracity of the internal and external information into analytics-based decisions. The business analytics shell uses Power BI, a cloud based Add-Ins, that works with Microsoft Excel 2013 and allows users to share, collaborate, and contribute to complex projects and business reports from anywhere on any devices. All analytics models are fully integrated within the business analytics shell. The decision-support tool is presented as a dynamic business simulation called ’Strategies and Decision Support in Organizations’, designed to illustrate the decision- making process on business and functional levels. The results from this approach allow participants in graduate management courses to better understand how managers measure and evaluate critical functions of their business and prepare them to participate and contribute in a more efficient way to the new challenges and opportunities facing the modern enterprise.

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A Case Study of Software Product Line for Business Applications Changeability Prediction

Author(s): Zdravko Roško,Vjeran Strahonja / Language(s): English / Issue: 2/2014

The changeability, a sub-characteristic of maintainability, refers to the level of effort which is required to do modifications to a software product line (SPL) application component. Assuming dependencies between SPL application components and reference architecture implementation (a platform), this paper empirically investigates the relationship between 7 design metrics and changeability of 46 server components of a product line for business applications. In addition, we investigated the usefulness of Platform Responsibility (PR) metric as an indicator of product line component changeability. The results show that most of the design metrics are strongly related to the changeability of server component and also indicate statistically significant correlation between Maintainability Index (MI) and PR metric. The assessment is based on a case study of the implementation of the product line for business applications in a financial institution. The results show that PR metric can be used as good predictor of changeability in the software product line environment.

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A Case-Driven Approach to Business Rules Extraction

Author(s): Neli Maneva,Krassimir Manev / Language(s): English / Issue: 1/2012

The paper describes an attempt to propose a feasible solution of a hard problem - business rules extraction from source code. The main challenges of the problem from a conceptual and managerial point of view have been analyzed. The essence of the comparative analysis method is presented to explain why it can be used as a decision support method through the whole process of business rules mining. A case study illustrates the situations in which the method can be successfully applied. Finally, the results obtained till now are summarized and some directions for future research and experimental work are shared.

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A Cloud Solution for Securing Medical Image Storage

Author(s): Mbarek Marwan,Abdelkarim Ait Temghart,Fatima Sifou,Feda AlShahwan / Language(s): English / Issue: 1/2020

Cloud computing is an easy-to-use, affordable solution to manage and analyze medical data. Therefore, this paradigm has gained wide acceptance in the healthcare sector as a cost-efficient way for a successful Electronic Medical Records (EMR) implementation. Cloud technology is, however, subject to increasing criticism because of the numerous security vulnerabilities. In this regard, we propose a framework to protect confidential data through the development of new security measures, including compression, secret share scheme and XOR operation. The primary objective of the proposal is to achieve the right balance between security and usability. To this aim, we divide an image into several blocks and then encrypt each piece separately with different cryptographic keys. To enhance privacy and performance, we suggest DepSky architecture to keep data on various storage nodes. Simulation experiments have been conducted to prove the effectiveness of the proposed methodology.

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A Cognitive System to Teach Software Maintenance Project Staffing

Author(s): Zohair Chentouf / Language(s): English / Issue: 4/2017

This paper describes a cognitive tool for teaching maintenance software project staffing decision making, which is based on a computational model of the human staffing decision process. The learning activity requires students to solve the given maintenance staffing problem before running the tool and comparing their decision with the tool’s one.

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A Comparative Analysis of University Information Systems within the Scope of the Information Security Risks

Author(s): Rustu Yilmaz,Yildiray Yalman / Language(s): English / Issue: 2/2016

Universities are the leading institutions that are the sources of educated human population who both produce information and ensure to develop new products and new services by using information effectively, and who are needed in every area. Therefore, universities are expected to be institutions where information and information management are used efficiently. In the present study, the topics such as infrastructure, operation, application, information, policy and human-based information security at universities were examined within the scope of the information security standards which are highly required and intended to be available at each university today, and then a comparative analysis was conducted specific to Turkey. Within the present study, the Microsoft Security Assessment Tool developed by Microsoft was used as the risk analysis tool. The analyses aim to enable the universities to compare their information systems with the information systems of other universities within the scope of the information security awareness, and to make suggestions in this regard.

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A Comparative Study of Block Matching Optical Flow Algorithms

Author(s): Ramona Mariş,Raluca Brad,Remus BRAD / Language(s): English / Issue: 4/2017

The paper presents a study of existing Block Matching Optical Flow algorithms, which estimate the motion from an image sequence. The seven algorithms selected for our performance and comparative study (ES, TSS, SETSS, NTSS, FSS, DS and ARPS) are finding a minimum cost match between the current image reference block and one of the considered blocks in the next image. The benchmark used for the performance testing was the Middlebury Dataset, with the conclusions leading to a parameters and algorithm selection criteria.

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A computer-based test item bank using a Rasch model

Author(s): Neil Jones / Language(s): English / Issue: 24/1990

This chapter describes a computer-based test item bank which I am developing for use in the English Language Centre of the University of Poznań. The system depends on a statistical analysis using a Rasch model, or Latent Trait theory. This is a recent and still relatively little-known approach to statistical analysis, and this paper will thus include an introduction to the probabilistic principles upon which it is based, and a brief discussion of the advantages claimed for it. Various computer programmes have been described for fitting the Rasch model to data. The item bank described uses a computerised version of a procedure for hand-working called PROX. Readers interested in actually using the statistics would need more guidance than the limited space here allows (e.g. Henning 1987). Therefore only the background to the statistics is described in this chapter.

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A Conceptual Framework for Facility Management in Higher Education Institutions in Saudi Arabia

Author(s): Abdulaziz Alsayyari,Adel Alblawi,Mohammad Nawab,Ahmed Alosaimi / Language(s): English / Issue: 1/2019

A utilization of facility management (FM) practices may greatly simplify the process of managing and operating the facilities of higher education institutions. Thus, this paper presents a conceptual framework for effective and efficient operation and management of facilities of these institutions in the Kingdom of Saudi Arabia (KSA). This field of research is significant given that the top management at the Ministry of Education level in the KSA is concerned about the high cost of operational expenditures and cleaning contracts of universities. As a result, 8% percent of the financial support has been reduced in last two years. Yet, more reduction in the support is expected in the coming years, which necessitates a reconsideration of practices and restructuring of responsible departments. The ministry’s set of actions in this context is justified by the stringent goals mandated by the Saudi 2030 Vision and the National Transformation Program (NTP) to rationalize the expenditures of all government sectors. Therefore, this paper summarizes the current practices of FM in universities and identifies the opportunities and challenges they typically face. Given the common structure and regulations of the public universities in Saudi Arabia, this study takes Shaqra University (SU) as a sample study. Therefore, SU’s facilities were assessed through data collection and analysis.Additionally, interviews were conducted with the property and maintenance departments’ teams to understand the current management and operations practices being implemented at the university. The results show that SU professionals do not comply with the correct practices of FM. Practical implications of this work include setting up good practices for managing and operating higher education facilities, where the adaptation of the correct FM rules will improve the liability of the educational infrastructure.

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