Acta Informatica Pragensia, 2020 (vol. 9), issue 2

The Digital Media in Lithuania: Combating Disinformation and Fake News

Aelita Skarzauskiene, Monika Maciuliene, Ornela Ramasauskaite

Acta Informatica Pragensia 2020, 9(2), 74-91 | DOI: 10.18267/j.aip.1346874  

The prevalence of so-called “fake news” is a relatively recent social phenomenon that is linked to disinformation, misinformation and other forms of networked manipulation facilitated by the rise of the Internet and online social media. The spread of misinformation is among the most pressing challenges of our time. Sources from which disinformation originates are constantly changing and present an enormous challenge for real-time detection algorithms and more targeted science based socio-technical interventions. The primary aim of this paper is to illuminate the practices and interpretations, focusing on three perspectives: general attitudes...

Mild Cognitive Impairment Detection Using Association Rules Mining

František Babič, Ľudmila Pusztová, Ljiljana Trtica Majnarić

Acta Informatica Pragensia 2020, 9(2), 92-107 | DOI: 10.18267/j.aip.1356805  

A single Mild cognitive impairment (MCI) is a transitional state between normal cognition and dementia. The typical diagnostic procedure relies on neuropsychological testing, which is insufficiently accurate and does not provide information on patients’ clinical profiles. The objective of this paper is to improve the recognition of elderly primary care patients with MCI by using an approach typically applied in the market basket analysis – association rules mining. In our case, the association rules represent various combinations of the clinical features or patterns associated with MCI. The analytical process was performed in line with...

Research on User Behaviors and Tolerance of Faulty Web Interactions

Veli Özcan Budak, Emre Akadal, Sevinç Gülseçen

Acta Informatica Pragensia 2020, 9(2), 108-131 | DOI: 10.18267/j.aip.1363643  

Even if we think that all the computer systems that are in operation work perfectly, the background might not be as it seems. We might face some faulty web interactions on a popular website or software as well. User behaviors are vital for developers in creating a satisfying computer system. in the aim of this study was threefold. Firstly, to determine if users’ tolerance of different kinds of faulty web interactions changes depending on the environment, and then to find how users’ behaviors differ when they encounter a faulty web interaction. Lastly, to detect how faulty web interactions shape users’ perceptions. To achieve these...

Culturally Sensitive Website Elements and Features: A Cross-National Comparison of Websites from Selected Countries

Radim Cermak

Acta Informatica Pragensia 2020, 9(2), 132-153 | DOI: 10.18267/j.aip.1374895  

The goal of this case study is to compare websites from 9 different countries―Austria, Chile, China, Japan, Latvia, Nigeria, Saudi Arabia, the US and the Czech Republic―and, based on this comparison, to provide the missing linking of website elements with cultural dimensions for better cultural adaptation of web content. Hofstede’s cultural dimensions were used for the selection of countries for this study. To examine the influence of culture on websites, countries with extreme values of cultural dimensions were selected. An important benefit is that this study takes into account all of Hofstede's cultural dimensions, including the...

The Role of Twitter During the COVID-19 Crisis: A Systematic Literature Review

Mahsa Dalili Shoaei, Meisam Dastani

Acta Informatica Pragensia 2020, 9(2), 154-169 | DOI: 10.18267/j.aip.1386317  

At the end of 2019, COVID-19 (Coronavirus 2019) emerged in Wuhan, China, and spread rapidly worldwide. The use of virtual social networks, especially Twitter, has increased due to the present condition. The purpose of the present systematic literature review is to review the investigations on Twitter's role in the COVID-19 crisis. For this purpose, an appropriate search strategy was used to extract the studies conducted in the Web of Science and PubMed databases. In the end, 24 articles were reviewed. The results indicate that in the period of the COVID-19 pandemic, the content and tweets posted on Twitter were affected by this crisis, and various...

The Process of Unit Price Extraction from Public Sector Contracts

Tomáš Bruckner, Filip Vencovský

Acta Informatica Pragensia 2020, 9(2), 170-183 | DOI: 10.18267/j.aip.1394432  

Czech government institutions commissioned a research on extracting usual unit prices from public IT contracts to aid future public tender sizing. The goal of the project is to obtain millions of contracts from the public register, convert them to full text, extract unit prices from the text and publish a pricelist of IT industry manday prices. This paper designs the process and method of price extraction, demonstrates and evaluates the result on five iterations of extraction and discusses the experience of two years of project performance. The process is designed as a set of repeatable workflows and specified activity and role description. The method...

Perception of Information Sensitivity for Internet Users in Saudi Arabia

Khaled Almotairi, Bilal Bataineh

Acta Informatica Pragensia 2020, 9(2), 184-199 | DOI: 10.18267/j.aip.1414570  

The rapid evolution of Internet use has led to the collection of big data about users, which has raised users’ privacy concerns about their personal information. This study adopts the hypothesis to evaluate the perception of the information sensitivity of Internet users in Saudi Arabia as research subjects. This study analyzes the sensitivity of 35 types of information through a questionnaire with answers from 508 participants from Saudi Arabia and estimates the cultural influence by comparing Saudi results with users from the USA, Brazil and Germany. Demographic information, such as age, gender, marital status and education, and attitude characteristics,...

Optimalizace trasy a dojezdových časů u zásilkových a obslužných služeb: Pohled praxe

Route and Travel Time Optimization for Delivery and Utility Services: An Industrial Viewpoint

Robin Jonák, Zdeněk Smutný, Milan Šimůnek, Michal Doležel

Acta Informatica Pragensia 2020, 9(2), 200-209 | DOI: 10.18267/j.aip.1332927  

There is a need to innovate current solutions in the field of fleet management and control systems in connection with the continuous growth of retail sales via the Internet and the associated delivery services. This is also supported by the development of the Logistics 4.0 concept, which refers to the massive digital transformation and deployment of cyber-physical systems based on artificial intelligence. For example, thanks to this delivery companies can reduce their operating costs, maintain competitiveness and margin size. The aim of this article is to present the basic principles on which the newly designed functionality of route and travel times...

Použití a výuka agilních přístupů k vývoji softwaru v České republice

The Use and Teaching of Agile Software Development in the Czech Republic

Alena Buchalcevová

Acta Informatica Pragensia 2020, 9(2), 210-223 | DOI: 10.18267/j.aip.1422770  

Digital transformation requires usage of effective software development methods, techniques, and tools for innovative IT solutions development. Agile methods, that are broadly adopted in recent years, fulfil this role. The aim of this report is to point to Agile surveys conducted in the Czech Republic. First survey was focused on the state of agile method adoption in companies in the Czech Republic and was conducted in 2019. Second survey, conducted in 2020, was focused on education of agile approaches at universities in the Czech Republic. The report shows, there is a contradiction between practise needs and the status of university education in the...

Call for Special Issue Papers: Perspectives of Social Informatics

Vasja Vehovar, Zdenek Smutny, Alice R. Robbin

Acta Informatica Pragensia 2020, 9(2), 224-227 | DOI: 10.18267/j.aip.1403720  

As was stated in one of the current review articles on social informatics: Research activities related to social informatics are expanding, even as community fragmentation, topical dispersion, and methodological diversity continue to increase. Specifically, the different understandings of social informatics in regional communities have strong impacts, and each has a different history, methodological grounding, and often a different thematic focus. Therefore, this special issue would like to present different perspectives on social informatics that arose in the world. The special issue will be divided into two parts that cover the full scope of social...