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Debesų kompiuterijos technologijų lygiagrečių skaičiavimo priemonių paslaugos

Author(s): Tomas Pranckevičius / Language(s): English Issue: 73/2015

In this article, the Cloud Computing technology and the modern parallel computing are analyzed. The architecture, performance and infrastructure of conceptual models of Cloud Computing technology are presented. An analytical review of literature is made with the focus on a new generation parallel computing tools – Hadoop, Spark and H2O. Some comparison criteria are selected. According to the criteria, a comparative analysis of the modern parallel and data intensive computing paradigms is made, based on the cloud computing technology. The analysis established their advantages and disadvantages.

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Automatic Content Recommendation and Aggregation According to SCORM

Author(s): Wladmir Cardoso Brandão,Daniel Eugênio Neves,Lucila Ishitani / Language(s): English Issue: 2/2017

Although widely used, the SCORM metadata model for content aggregation is difficult to be used by educators, content developers and instructional designers. Particularly, the identification of contents related with each other, in large repositories, and their aggregation using metadata as defined in SCORM, has been demanding efforts of computer science researchers in pursuit of the automation of this process. Previous approaches have extended or altered the metadata defined by SCORM standard. In this paper, we present experimental results on our proposed methodology which employs ontologies, automatic annotation of metadata, information retrieval and text mining to recommend and aggregate related content, using the relation metadata category as defined by SCORM. We developed a computer system prototype which applies the proposed methodology on a sample of learning objects generating results to evaluate its efficacy. The results demonstrate that the proposed method is feasible and effective to produce the expected results.

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Using Alice Software with 4C-ID Model: Effects in Programming Knowledge and Logical Reasoning

Author(s): Joana Martinho Costa,Guilhermina Lobato Miranda / Language(s): English Issue: 1/2019

This paper presents an approach to the initial programming learning using the four components instructional model and the Alice software. The quasi-experimental design was developed with two groups of students that attended two schools with very different socioeconomic status and school retention levels. The differences obtained in the mean of the programming knowledge test when co-variated with the Logical Development Scale score were positive in the two groups, with no statistical significance in the difference between both (p = 0.05). The differences obtained in the Logical Development Scale score (Échelle Collective de Devéloppement Lógique [ECDL]), before and after the experimental treatment, revealed positive differences in the experimental group with no statistical significance (p > 0.05), and in the control group with statistical significance (p < 0.05). These results suggest that the Alice software when combined with the 4C-ID instructional model has positive effects in programming learning and in logical reasoning.

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Approaches to Assess Computational Thinking Competences Based on Code Analysis in K-12 Education: A Systematic Mapping Study

Author(s): Nathalia Da Cruz Alves,Christiane Gresse von Wangenheim,Jean Carlo Rossa Hauck / Language(s): English Issue: 1/2019

As computing has become an integral part of our world, demand for teaching computational thinking in K-12 has increased. One of its basic competences is programming, often taught by learning activities without a predefined solution using block-based visual programming languages. Automatic assessment tools can support teachers with their assessment and grading as well as guide students throughout their learning process. Although being already widely used in higher education, it remains unclear if such approaches exist for K-12 computing education. Thus, in order to obtain an overview, we performed a systematic mapping study. We identified 14 approaches, focusing on the analysis of the code created by the students inferring computational thinking competencies related to algorithms and programming. However, an evident lack of consensus on the assessment criteria and instructional feedback indicates the need for further research to support a wide application of computing education in K-12 schools.

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The Effect of Robotics Activities on Learning the Engineering Design Process

Author(s): Fatima Kaloti-Hallak,Michal Armoni,Moti Ben-Ari / Language(s): English Issue: 1/2019

This paper describes a study of students' meaningful learning of the engineering design process during their participation in robotics activities. The population consisted of middle-school students (ages 13-15 years) who participated in the FIRST® LEGO® League competition. The methodology used was qualitative, including observations and interviews. The analysis was based on the Revised Bloom Taxonomy. Almost all the groups demonstrated meaningful learning, although some reached higher levels than others. Most of the groups demonstrated the understanding/applying level during each of the design process phases (searching and decision making, construction and testing, diagnosing and debugging), some demonstrated the analyzing/evaluating level, but only a few demonstrated the higher level of creating. Factors that seemed to play a role in the students' learning include: (a) the teaching or mentoring style; (b) the absence of a robotics textbook; (c) the extra-curricular competition-oriented nature of the activities; and (d) the unstable nature of the design of the robot.

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A Holistic Approach for Computer Science Education in Secondary Schools

Author(s): Serhat Bahadir KERT,Filiz Kalelioğlu,Yasemin Gülbahar / Language(s): English Issue: 1/2019

In this study, effectiveness of a computer science course at the secondary school level is investigated through a holistic approach addressing the dimensions of instructional content design, development, implementation and evaluation framed according to ADDIE instructional design model where evaluation part constituted the research process for the current study. The process has initiated when the computer science curriculum had major revisions in order to provide in-service teachers with necessary support and guidance. The study is carried through as a project, which lasted more than one year and both quantitative and qualitative measures were used through a sequential explanatory method approach. The intention was to investigate the whole process in detail in order to reveal the effectiveness of the process and the products. In this regard, not only teachers' perceptions but also students' developments in their perceptions of academic achievement and computational thinking, as well as correlations between the computational thinking sub-factors were investigated. The findings showed that the instructional materials and activities developed within the scope of the study, positively affected the computational thinking and academic achievement of students aged 10 and 12 years old. The teachers' weekly feedbacks regarding application structures and implementation processes were also supported the findings and revealed some more details that will be useful both for instructional designers and teachers.

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Computational Thinking Self-Efficacy Scale: Development, Validity and Reliability

Author(s): Volkan Kukul,Serçin KARATAS / Language(s): English Issue: 1/2019

The aim of this study is to develop a self-efficacy measuring tool that can predict the computational thinking skill that is seen as one of the 21st century's skills. According to literature review, an item pool was established and expert opinion was consulted for the created item pool. The study group of this study consists of 319 students educated at the level of secondary school. As a result of the exploratory factor analysis, the scale consisted of 18 items under four factors. The factors are Reasoning, Abstraction, Decomposition and Generalization. As a result of applied reliability analysis, the Cronbach Alpha reliability coefficient can be seen to be calculated as .884 for the whole self-efficacy scale consisting of 18 items. Confirmative factor analysis results and fit indexes were checked, and fit indexes of the scale were seen to have good and acceptable fits. Based on these findings, the Computational Thinking Self-efficacy Scale is a valid and reliable tool that may be used in measuring to predict Computational Thinking.

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Elementy wizualizacyjne jako czynnik podkreślający treść opowieści w storytellingu

Author(s): Małgorzata Dorota Janiak / Language(s): Polish Issue: 2/2019

The aim of the paper is to discuss the possibilities of presenting the content in storytelling in a visual way, and to indicate how important it is to emphasize the most important elements of the referenced tales by attaching visual elements to spoken or written texts. In addition to general considerations on the possibilities of using visualization elements in storytelling, references were made to the works created during practical activities: a) to the books, as works referring to practical using of storytelling in business trainings and b) students (of information management, the Institute of Information Studies of the Jagiellonian University) projects, which were developed during the classes on visualization of information. Models for connecting visual elements with the text / content of the story have been established.

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Analiza i charakterystyka architektury informacji platformy Google Classroom

Author(s): Adam Jakub Szalach / Language(s): Polish Issue: 2/2019

The purpose of this article is to analyze technological solutions and evaluate the usefulness of Google’s free e-learning software. The author undertakes to indicate the advantages and disadvantages while checking the applications of the Google Classroom platform information architecture. The platform, developed since 2014, enjoys a constantly growing interest of smaller universities, and this is closely related to the dynamic development of available functionalities in the offer of one of the largest companies in the world of IT, which is Google. This allows us to assume that the aforementioned teaching platform, thanks to such a developed technological base and experience in the field of user-oriented systems, can become an important market alternative for commonly known LMS (Learning Management System) and LCMS (Learning Content Management System) solutions.

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Szukanie wartości dodanej, czyli czasopisma pod lupą. Diagnoza w praktyce działań bibliotecznych i jej efekty w Bibliotece Uniwersytetu Papieskiego Jana Pawła II w Krakowie

Author(s): Danuta Gurdak / Language(s): Polish Issue: 50 (1)/2020

The aim of this paper is to discuss various aspects of the evaluation of journals. From the library users perspective, these aspects are related to the attractiveness, availability and efficient use of collections, while by the librarians responsible for shaping the library offer the evaluation might be considered as an opportunity to create added value. In the presentation of the issues focused on scientific journals in Polish libraries the priority was referred to the Central Catalogue of Press Titles. The author also describes the involvement of libraries in the creation of central catalogues, databases and platforms meant to facilitate access to the most valuable journal resources. In the context of the evaluation of journals, attention was paid to the importance of subjective assessment and to the readers’ needs and expectations. Against this background, the actions currently applied in the Library of the John Paul II Pontifical University in Cracow were presented.

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Zbiory audiowizualne związane ze św. Janem Pawłem II w Bibliotece Uniwersytetu Papieskiego Jana Pawła II w Krakowie

Author(s): Danuta Rebech / Language(s): Polish Issue: 51(2)/2020

The audio-visual collection in the Library of the Pontifical University of John Paul II in Cracow has been assembled since 1998. At present, it comprises a total of 5,451 items, 855 of which are related to the person of St. John Paul II. The collection includes: records, slides, audio and video cassettes, compact discs (DVDs, VCDs, CD-ROMs) – acquired by purchase, donations and exchange of publications. The collection is a rich source of information about the Polish Pope and his activities and teaching, complementary to traditional books and periodicals. The audio-visual collection is fully catalogued in the MAK program, and its part is also indexed in the VTLS/Virtua program. Both catalogues are available on the UPJPII Library website. The readers can learn about these collections not only from the online catalogues but also through the exhibitions devoted to St. John Paul II prepared by the librarians. One of them consisted entirely of audio-visual items related to this great person.

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Interesul pentru Ştiinţă şi Tehnică în biblioteci: de la servicii specializate la servicii publice

Author(s): Claudia Serbănuta / Language(s): Romanian Issue: 12/2013

The profound changes that took place in the last couple of centuries in science and technology brought important changes to the library concept. This article will exemplify how, starting from the classical library model of universal collections or of research libraries for science and technology, through the development of these fields, we witnessed a democratization of library services. We can now talk about public libraries that have special collections and branches dedicated for science and technology, libraries that got involved in opening access to specialized journals for the public or libraries that offer innovative technologies.

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МЕНЕДЖМЕНТ ВЕБ-КОНТЕНТУ ЯК СУЧАСНИЙ ПОЛІФУНКЦІОНАЛЬНИЙ НАПРЯМ ІНФОРМАЦІЙНО-КОМУНІКАТИВНОЇ ДІЯЛЬНОСТІ

Author(s): Vladyslav Kasian / Language(s): Ukrainian Issue: 1/2021

The purpose of the article is to outline the basic concepts in the field of web content management and identify the main components of functional activities in this area. The research methodology is based on a set of general scientific methods of analysis and synthesis, induction and deduction, review-analytical, as well as generalization and abstraction, which allowed to identify and generalize the main features, objectives, and concepts that define web content management as a modern multifunctional area of activity. The scientific novelty of the study is to outline the features, objectives, and basic concepts of the modern field of the functional direction of information management ‒ web content management, which has become relevant in connection with the digital transformation of all spheres of public life. Conclusions. The main concepts of web content management as a strategy for the formation of digital information and communication environment are digital transformations of all spheres of public life as a factor in the development of activities in the web environment, development of information and communication infrastructure, web resources as a set of integrated technical, software-hardware, as well as content intended for publication in the webspace, special professional education in the field of web content management. The process approach to management theory into web content management, application of project management concepts, and comprehensive consideration of the commonality of the life cycle of the site and the life cycle of web content allow the effective creation and operation of a web resource.

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National Bibliographic Database for Research Outputs in the Republic of Moldova: Overview and Review

Author(s): Irina Cojocaru,Gheorghe Cuciureanu,Igor Cojocaru / Language(s): English Issue: 2/2021

Lately, an increasing number of countries have set up national bibliographic databases, which aim to achieve more comprehensive coverage of the national research outputs. These databases both increase the visibility of national publications and compensate the limited coverage of traditional citation databases, such as Scopus or Web of Science. National bibliographic databases are being increasingly used by a wide variety of stakeholders for numerous purposes, ranging from basic information retrieval and research outputs overview to bibliometric analysis, evaluation and research funding. The Republic of Moldova set up its national bibliographic database – National Bibliometric Instrument (IBN) in 2011. Nowadays, IBN includes over 113.000 articles published in national scientific journals, as well as conference proceedings from the Republic of Moldova starting from 1993 to date, with over 90% of publications indexed by Google Academic. IBN is used for the evaluation of national scientific journals and provides valuable insights on the overall evolution and trends of national research outputs, but is not being used for research funding. This paper aims to describe the history, actual structure and user possibilities of IBN. It also aims to analyse IBN design, organisation, maintenance and usage from the perspective of the Manual of good practices regarding national bibliographic databases, developed in the context of the ‘European Network for Research Evaluation in the Social Sciences and Humanities’ ENRESSH. Finally, the paper intends to provide a set of recommendations for IBN reengineering and improvement.

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LYGIAGRETŪS SKAIČIAVIMAI SU CUDA

Author(s): Julija Semenenko,Dmitrij Šešok / Language(s): Lithuanian Issue: 1 (47)/2017

The principles of computing with NVIDIA’s parallel computing platform CUDA are analysed in the paper. Two numerical experiments, array addition and matrix multiplication and optimizing matrix multiplication (shared memory, bank conflict solutions, instruction-level parallelism) with Geforce and Quadro graphics cards and the CPU were run. Time values for computing int, float, double data types are provided in the paper.

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Istraživanja u području grafovskih baza podataka

Author(s): Kornelije Rabuzin,Robert Kudelić / Language(s): Croatian Issue: 2/2020

We received certain funds (so-called University grants) a few years ago to explore certain aspects of graph databases. In this study, we decided to share the results of the research to the Croatian academic and professional community. We believe that the research was of high quality and that the results have the potential for wider application and implementation in the available graph database management systems. In addition, there are certain possibilities for expanding the implemented solutions, and there is space for additional research and mapping of relational into graph database concepts.

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Karakteristike softvera za vizualizaciju podataka

Author(s): Vedran Juričić / Language(s): Croatian Issue: 2/2019

This paper defines data visualization, its importance primarly in science and modern business processes, but also in other field such as medicine and banking. Analysis and visualization of large amounts of data is done today with a variety of tools, which vary in price, platform, quality of customer support, capabilities and functionality. The paper analyzes and compares the characteristics of a large number of data visualization tools in order to find their most common capabilities, that is, the common functionality of most of today's tools. In addition to this analysis, the paper also analyzes their availability on platforms and operating systems, customer support, pricing etc.

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Infografika. Multimodalny przekaźnik informacji w środowisku akademickim

Author(s): Katarzyna Sierak / Language(s): Polish Issue: 1/2021

Infographics have become more and more popular. The benefits of using them are also noticed in the academic community. The academic staff eagerly use infographics on a social networking platform such as Facebook, primarily to communicate with their students about current issues, but also to encourage potential candidates to apply. Such an approach to the prevailing trends seems reasonable, because young people currently studying, grew up in the era of digitalization and technological breakthrough, seek and expect information to be provided in a known way, i.e. primarily via the Internet. The aim of this article is to show how academic staff of the Faculty of Humanities of the University of Warmia and Mazury in Olsztyn communicate with their students and/or potential candidates by means of infographics and what their goals are.

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Skłonności polityczne czcionek. Słów kilka o kampaniach prezydenckich w Stanach Zjednoczonych Ameryki

Author(s): Katarzyna Seroka / Language(s): Polish Issue: 1/2021

Usually, we think about fonts in a pragmatic or aesthetic context, but the political repercussions of typographic choices have been known for a long time. The typeface is the visual form of the language, which means that its connotations with politics are unavoidable. The article aims to present the role of typography in politics with particular emphasis on presidential campaigns in the United States of America. The paper refers to the period from the 1930s to the 2020s.

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Międzynarodowa konferencja naukowa WIAD21 – Światowy Dzień Architektury Informacji na UMK w Toruniu

Author(s): Weronika Kortas / Language(s): Polish Issue: 1/2021

This article is a report from the international scientific conference WIAD21, which took place on February 27, 2021, on the occasion of the World Information Architecture Day. The conference was organized at the Institute of Information and Communication Research, at the Nicolaus Copernicus University in Toruń. In total, 250 people participated in the conference, including 45 speakers, both from the world of science and business.

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