Wyniki wyszukiwania - BazTech

1

Information system for detection of parameters of dangerous industrial facilities based on geoinformation technologies

Barabash Oleg, Svynchuk Olha, Bandurka Olena, Ilin Oleh

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

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2024

|

T. 14, nr 3

9--14

EN

With the development of industry, the issue of environmental safety of countries worldwide has become increasingly acute. Currently, there is a deficiency of information systems capable of effectively and comprehensively informing the public about the state of the environment, analyzing the dynamics of environmental indicators, and assessing regional disparities in terms of environmental safety. The objective of this study is to develop an information system for monitoring the environmental condition of a country's territory based on geoinformation technologies, considering emissions of pollutants. This system is conceived as a multi-regional monitoring system focused on industrial areas. It incorporates a geo-module for user location determination and data representation tailored to the user's location. Additionally, the system regularly updates information on hazardous enterprises and notifies the population in case of emergencies.

PL

Z rozwojem przemysłu wzrasta znaczenie problemu bezpieczeństwa ekologicznego i potrzeba doskonalenia systemów informacyjnych do jego monitorowania i analizy. W obecnych warunkach istnieje niedostatek takich systemów, które mogłyby jakościowo i dostępnie informować społeczeństwo o stanie środowiska, przeprowadzać analizę dynamiki wskaźników ekologicznych oraz oceniać regionalne różnice w tej dziedzinie. Celem niniejszego badania jest opracowanie systemu informacyjnego do monitorowania stanu ekologicznego obszaru kraju na podstawie technologii geoinformacyjnych z uwzględnieniem emisji substancji zanieczyszczających. Wspomniany system jest rozważany jako wieloregionalny i skierowany na monitorowanie stanu ekologicznego strefy przemysłowej. Obejmuje on moduł geograficzny do określania lokalizacji użytkownika i wyświetlania informacji zgodnie z tą lokalizacją. Ponadto system regularnie aktualizuje dane dotyczące niebezpiecznych przedsiębiorstw i informuje społeczeństwo w przypadku wystąpienia sytuacji nadzwyczajnych.

2

Lower Bounds on Cardinality of Reducts for Decision Tables from Closed Classes

Ostonov Azimkhon, Moshkov Mikhail

Annals of Computer Science and Information Systems

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2024

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Vol. 39

667--670

EN

In this research paper, we examine classes of decision tables that are closed under attribute (column) removal and changing of decisions associated with rows. For decision tables belonging to these closed classes, we investigate lower bounds on the minimum cardinality of reducts. Reducts are minimal sets of attributes that allow us to determine the decision attached to a given row. We assume that the number of rows in the decision tables from the closed class is not limited by a constant. We divide the set of these closed classes into two families. In one family, the minimum cardinality of reducts for decision tables is bounded by standard lower bounds of the forms Ω(log cl(Τ), where cl(Τ) represents the number of decision classes in the table Τ. In the other family, these lower bounds can be significantly tightened to the form Ω(cl(Τ) 1/q) for some natural number q.

3

The impact of supplier strategic partnership in supply chain on organizational performance: an empirical study of supply chain management in an emerging economy

Malik Tahir Mumtaz, Hassan Syed Mahmmod, Tufail Muhammad

LogForum

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2023

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Vol. 19, no. 2

277--293

EN

Background: The purpose of this study is to create a theoretical framework for analyzing the causal relationship between supply chain management practices and firm performance, in the FMCG sector of Pakistan. A quantitative research approach was adopted, in which a multi-item scale Web-based survey using a structured online questionnaire was utilized to collect the primary data. A total of 232 questionnaires were collected from a sample of Karachi-based FMCG companies in Pakistan. Confirmatory Factor analysis and internal consistency were used to test the reliability and fitness of the measurement model, and structural equation modeling-SEM was employed to test the proposed hypotheses. Empirical findings reveal that there is a significant positive relationship between SCM practices and firm performance. However, the results of the individual-level analysis of SCM practices appear to vary from practice to practice. Of various SCM practices, supplier strategic partnership SSC with the highest beta value (i.e., ß = 0.488; t-value = 32.381; p _ 0.000) was found to have the greatest impact on firm performance, followed by information sharing customer relationship, and finally the outsourcing. This study will guide supervisors with a more in-depth understanding of SCM practices and their potential contribution to firm performance. The findings also encourage managers to place supplier strategic partnerships and information systems on high priority, on both inter-firm and intra-firm relationships, as prerequisites for achieving superior firm performance. The propositions and results of the study provide managers with guidelines about effective management of upstream supply chain networks and awareness of the potential synergies that arise from suppliers and the information system. This article further enriches the literature in an evolving area of supply chain management practices. Two key factors facing supply chain managers and scholars are addressed, and establish their ability to drive firm performance.

4

Information system for diagnostic competitivenessof the hospitality industry of the regions of Ukraine

Matviichuk Liudmyla, Liutak Olena, Dashchuk Yuliia, Lepkiy Mykhailo, Sidoruk Svitlana

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

|

2023

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T. 13, nr 4

132--138

EN

The purpose of this article is to study the main problems and prospects of ensuring the competitiveness of the hospitality industry of the regions of Ukraine in modern conditions, taking into account international experience in the context of deepening integration ties. The work carried outa diagnosis of the level of competitiveness of the hospitality industry of the regions of Ukraine, based on the developed information system of indicatorsfor assessing the conditions of the competitiveness of the hospitality industry of the region and the formed matrix of the competitiveness of the hospitality industry of the region. A comparison was made of the conditions for ensuring competitiveness, the level of competitive advantages and the levelof competitiveness of the hospitality industry of the regions of the state in the pre-war period, as well as the diagnosis of the competitivenessof the hospitality industry of the regions of the state was carried out. The positions of the regions in the pre-war and war periods in terms of the levelof competitiveness and availability of tourism potential were determined. A matrix for the selection of target indicators of the integration strategyof regions of Ukraine that have preserved their tourist potential is proposed. The results of the study revealed the main problems of ensuringthe competitiveness of the hospitality industry in the regions of Ukraine, and highlighted the potential prospects of the studied processes taking into account the conditions of European integration.

PL

Celem artykułu jest zbadanie głównych problemów i perspektyw zapewnienia konkurencyjności branży hotelarskiej regionów Ukrainywe współczesnych warunkach, z uwzględnieniem doświadczeń międzynarodowych w kontekście pogłębiania więzi integracyjnych. W pracy przeprowadzono diagnozę poziomu konkurencyjności branży hotelarskiej regionów Ukrainy na podstawie opracowanego systemu informacyjnego wskaźników oceny warunków konkurencyjności branży hotelarskiej regionu oraz utworzonej macierzy konkurencyjności branży hotelarskiej regionu. Dokonano porównania warunków zapewnienia konkurencyjności, poziomu przewag konkurencyjnych oraz poziomu konkurencyjności branży hotelarskiej regionów państwa w okresie przedwojennym oraz diagnozy konkurencyjności branży hotelarskiej regionów stanu została przeprowadzona. Określono pozycje regionów w okresie przedwojennym i wojennym pod względem poziomu konkurencyjności i dostępności potencjału turystycznego. Zaproponowano macierz doboru wskaźników docelowych strategii integracji regionów Ukrainy, które zachowały swój potencjał turystyczny. Wyniki badania ujawniły główne problemy zapewnienia konkurencyjności branży hotelarskiej w regionach Ukrainy, a także zwróciły uwagę na potencjalne perspektywy badanych procesów z uwzględnieniem uwarunkowań integracji europejskiej.

5

Narzędzie do wspomagania migracji systemów informacyjnych organizacji do „Zero Trust Architecture”

Buras Weronika

Przegląd Teleinformatyczny

|

2022

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T. 10, Nr 1-4 (28)

3--18

PL

W artykule przedstawiono podstawowe informacje na temat koncepcji „Zero Trust Architecture” oraz projekt i wykonane na jego podstawie narzędzie do wspomagania migracji systemów informacyjnych do „Zero Trust Architecture”. We wstępnej części artykułu opisano zwięźle koncepcję Zero Trust oraz przedstawiono wykonaną na bazie NSC 800-207 listę czynności niezbędnych do migracji systemów informacyjnych do wyżej wymienionej architektury. Następnie zaprezentowano procedurę praktycznego wykorzystania tej listy. Na końcu artykułu krótko opisano sposób implementacji wspomnianej procedury do postaci narzędzia wspomagającego migrację.

EN

The paper presents basic information on the „Zero Trust Architecture” concept and a project involving a tool designed to support the migration of information systems to this architecture. Initially, the Zero Trust concept is briefly described, followed by the presentation of steps based on NSC 800-207 necessary for migrating information systems to this architecture. Subsequently, the procedure for practically using this list is outlined. Finally, the implementation of this procedure into a migration support tool is described.

6

Rough sets turn 40: from information systems to intelligent systems

Skowron Andrzej, Ślęzak Dominik

Annals of Computer Science and Information Systems

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2022

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Vol. 30

23--34

EN

The theory of rough sets was founded by Zdzisław Pawlak to serve as a framework for data and knowledge exploration. Following Professor Pawlak's seminal paper titled "Rough Sets'' published in 1982 in International Journal of Computer and Information Sciences, it is important to discuss the history, the presence and possible future developments of this theory, as well as its applications. One of the key aspects that lets us use rough sets in practical scenarios is the notion of information system, which in fact comes from even earlier Professor Pawlak's works. Information systems are the means for data and knowledge representation. They constitute the input to rough set mechanisms aimed at computing concept approximations and deriving compacted and interpretable decision models. Accordingly, in this paper we discuss where information systems come from. We claim that in many applications it is not enough to treat a data set - represented as an information system - as a purely mathematical object with no linkage to the data origins. Quite oppositely, in practice we may need to work with information systems more actively, giving ourselves a technical possibility to construct them dynamically, taking into account interaction with physical environments where the data is created.

7

Multi-criteria decision-making with linguistic labels

Mieszkowicz-Rolka Alicja, Rolka Leszek

Annals of Computer Science and Information Systems

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2022

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Vol. 30

263--267

EN

This paper proposes an approach that is suitable for solving multi-criteria decision-making problems that are characterized by fuzzy (subjective) criteria. A finite set (universe) of alternatives will be expressed as a decision table that represents a fuzzy information system, in which every fuzzy criterion is connected with a set of its linguistic values. We apply subjective preference degrees for linguistic values that should be provided by a decision-maker. To simplify the process of decision-making in big data environments, an additional stage will be introduced that can produce a smaller set of alternatives represented by fuzzy linguistic labels of similarity classes. We select a small set of similarity classes for a final ranking. A measure of compatibility will be defined that should express the accordance of a selected alternative with preferences given for the linguistic values of a particular fuzzy criterion.

8

Improved method of testing distributed system interfaces using simulation tests

Mukhin Vadym, Kornaga Yaroslav, Bazaka Yurii, Barabash Andrii, Mukhin Oleg

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

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2021

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Vol. 25, No 2

261--270

EN

In this paper a modification of Mike Cohn's test pyramid is described for adaptation during testing in distributed information processing systems which allows expanding the possibilities of testing and applying the features of such systems. Recommendations for further use of the mechanisms of modified Mike Cohn's pyramid are developed. The method of testing the user interface software of the nodes of a distributed system was improved to differ from the existing techniques by including a mechanism of simulation of its operation to allow testing of individual components of the system interface. It is shown that in comparison with end-to-end testing of user interfaces the advantages of using the mechanisms of user interface test simulators allow reducing the time spent on testing any UI service. The time is reduced by decreasing the number of simultaneous user interface services. With a small number of nodes, end-to-end testing of user interfaces is faster than simulation testing of the same user interfaces. As the number of nodes increases, the time required to test the services of a distributed system by simulation tests becomes shorter than the time required to test the same system by a traditional method.

9

Diagnoza i ocena systemu informacyjnego ratownictwa

Krawczyk Mateusz

Studia Bezpieczeństwa Narodowego

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2021

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R. 11, Nr 19

113--124

PL

W artykule przedstawiono system informacyjny ratownictwa i ukazuje jego kluczowe elementy, istotne z punktu widzenia obiegu informacji w organizacji. Mowa o Platformie Lokalizacyjno-Informacyjnej z Centralną Bazą Danych, systemie e-Call oraz możliwym do zaimplementowania w Polsce systemie zwanym Advanced Mobile Location. Niniejszy artykuł określa istotę powiadamiania ratunkowego i rolę informacji w obiegu systemowym – informacji pozyskiwanej i przetwarzanej celem ratowania ludzkiego życia i zdrowia. Celem pracy jest wskazanie komponentów systemu informacyjnego ratownictwa oraz przedstawienie holistycznej oceny w odniesieniu do przeprowadzonych badań empirycznych. Badania te zostały przygotowane z wykorzystaniem techniki sądów i opinii. Przeprowadzono je wśród operatorów numeru alarmowego z czterech ośrodków ogólnopolskich, wykorzystano przy tym opracowane narzędzie - kwestionariusz ankiety. Próba badawcza wyniosła 46 osób - operatorów 112. Wyniki badań, odpowiedzi uzyskane od praktyków rzuciły nowe światło na funkcjonowanie systemu ratownictwa, ukazały bolączki współpracy pomiędzy służbami oraz przyczyniły się do zaprezentowania utylitarnych rozwiązań na rzecz stwierdzonych problemów przez samych respondentów.

EN

The publication presents the rescue information system and shows key elements: the Location and Information Platform with the Central Database, the e-Call system, the possibility of implementing Advanced Mobile Location. This article defines the essence of emergency notification and the role of information in the system circulation - information obtained and processed in order to save human health and life. In connection with the above, an assessment of the rescue information system is presented based on a survey conducted with the use of courts and opinions, with the use of questionnaire surveys. The survey was conducted among emergency number operators from four nationwide centers. The aim of the publication is to show the problems of the rescue information system and the proposed solutions in the context of improving entire system.

10

Schengen Information System (SIS)

Czaplicki Kamil

GIS Odyssey Journal

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2021

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Vol. 1, no. 2

123--130

EN

The article discusses the principles of functioning of one of the largest databases in the world – the Schengen Information System (SIS). The article describes the history of the creation of the system, its genesis, and the goals it is supposed to achieve. The system's evolution was described, particularly the development of the second-generation system (SIS II). The article presents the basic functionalities of the system and its role in ensuring security and public order. The article presents the definition issues related to information and IT systems.

11

Visual methods of processing survey data in social disciplines based on fuzzy logic

Śmigielski Grzegorz, Mreła Aleksandra, Sokolov Oleksandr, Nedashkovskyy Mykoła

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2021

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Vol. 69, nr 5

art. no. e138812

EN

All universities are responsible for assessing the quality of education. One of the required factors is the results of the students’ research. The procedure involves, most often, the preparation of the questionnaire by the staff, which is voluntarily answered by students; then, the university staff uses the statistical methods to analyze data and prepare reports. The proposed EQE method by the application of the fuzzy relations and the optimistic fuzzy aggregation norm may show a closer connection between the students’ answers and the achieved results. Moreover, the objects obtained by the application of the EQE method can be visualized by using the t-SNE technique, cosine between vectors and distances of points in five-dimensional space.

12

Conception of 4-component architecture of information systems on example of Artificial Neural Networks

Gakh Dmitriy

Annals of Computer Science and Information Systems

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2021

|

Vol. 26

159--166

EN

Nowadays Information Systems (IS) become more and more distributed, complex, and heterogeneous. Such nature of IS make them or their components a Black Box. Although classical software operates according understandable logic, modern complex software often shows non-determinism in its operation. Artificial Intelligence (AI) based on Artificial Neural Networks (ANN) is an example of such systems. This paper considers IS architecture consisting of 4 components, one of which represents non-determinism as an "Machine Intuition". The architecture is derived from 3-tier computer architecture and based on psychological findings. This approach allowed building a simple and user/developer friendly model. Practical value of the architecture is concluded in ability to better understand, design, and develop the IS containing units with non-deterministic behavior, deal with AI overfitting, underfitting, and threat problems. Architecture and principles represented in this paper can be applied not only to AI/ANN but different IS types.

13

The Integrated Military Information System of the Ministry of National Defense in the Aviation School Airbase

Bogusz Dariusz

Safety & Defense

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2020

|

1

22--30

EN

This article describes the Integrated Military Information System (IMIS), which is being gradually introduced in the Ministry of National Defense. The modern IMIS system is intended to form the foundations of effective management of the Air Force logistics. At present, military units often have to carry out their tasks in a coalition or allied environment and the integrated information system is a key to ensuring a successful outcome of these activities. This author also focus on airbase tasks on the example of 42 Aviation School Airbase in Radom. The article also describes the implementation effects of IMIS on enhanced functioning of the airbase logistics in this process.

14

Development of the web application by the information system for data processing and documentation on selected farm in agricultural production

Mráz Miroslav, Findura Pavol, Urbanovičová Oľga, Rigó Ivan, Bajus Peter, Dróżdż Tomasz, Kiełbasa Paweł

Przegląd Elektrotechniczny

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2020

|

R. 96, nr 1

218--221

EN

The aim of the thesis was to create a web application using the information system to facilitate the creation of documentation and record management on the selected farm. In this work we focused on development of web application with support of information system AgroCont, from ISAT, s.r.o. in farm Dolný Lopašov. The ASP.NET technology was chosen for the development of the web application. In this work we described the components of the chosen technology (eg Visual Basic .NET, HTML, JavaScript, AJAX, SQL etc.) and also the steps of the life cycle of the web application creation. We have created three core modules that are focused on recording worksheets, agronomic documentation and managing individual records. Using the web application, it is possible to use these modules on all platforms anywhere (eg Android, IOS, Windows, etc.), only through a web browser and internet connection. All created records are linked to the AgroCont information system and can be further used eg. for wage creation or as a basis for in-house analyzes.

PL

Celem badań było stworzenie aplikacji internetowej z wykorzystaniem systemu informatycznego ułatwiającego tworzenie dokumentacji i zarządzanie dla przedsiębiorstwa rolnego. Aplikacja internetowa została wytworzona w technologii ASP.NET przy wsparciu systemu informatycznego AgroCont, z ISAT, s.r.o. i zastosowana w gospodarstwie Dolný Lopašov. W artykule opisano komponenty wybranej technologii (np. Visual Basic .NET, HTML, JavaScript, AJAX, SQL itp.) oraz trzy podstawowe moduły, które koncentrują się na rejestrowaniu arkuszy roboczych, dokumentacji agronomicznej i zarządzaniu poszczególnymi rekordami. Aplikacja internetowa pracuje na wszystkich platformach w dowolnym miejscu (np. Android, IOS, Windows itp.), które maja połączenie internetowe. Wszystkie utworzone rekordy są powiązane z systemem informacyjnym AgroCont i mogą być dalej wykorzystywane np. do tworzenia płac lub jako podstawa wewnętrznych analiz.

15

Application of HM-networks with positive and negative heterogeneous requests for finding memory volume in information systems

Matalytski Mikhail, Zajac Pawel, Kopats Dmitry

Journal of Applied Mathematics and Computational Mechanics

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2020

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Vol. 19, nr 1

67--77

EN

To determine the memory volume of information systems (IS), it was proposed to use a stochastic model, based on the use of a queueing network with bypasses, known as an HM-network. This model includes the servicing of heterogeneous requests along with their volumes, the ability to change the volume of such requests with their passage of time and the possibility of finding computer viruses in them, and therefore servicing requests can be interrupted at some random time. The expressions were obtained for the expected total values of the volume of requests in IS nodes.

16

Infocommunication technologies for assessment and prediction of environment impact on human health

Boyko Oksana, Dorosh Nataliya, Yermakova Irena, Dorosh Oleh, Grądz Żaklin

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

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2020

|

T. 10, nr 3

22--25

EN

An innovative concept and the structural organization of a modular system for long-term monitoring, analysis and correction of integrated health indicators of different groups of the population taking into account the impact of environmental factors and extreme conditions is described. The main elements of the system are a module for measuring physiological indicators that characterize the state of human health, a sensor module for selection and registration of environmental indicators, a data transmission module, a database, a module for comprehensive analysis of indicators, a forecasting module, a set of mathematical models, a module for results displaying. Methods of mathematical modelling and statistics were used to predict health state. The mobile application that allows to assign and take into account changes in environmental performance during physical activity, e.g. training weather conditions, such as temperature, relative humidity and wind speed, as well as the distance and duration of running, is developed. The results can be obtained numerically and graphically on the smartphone screen. The proposed system allows to predict the functional state of person in different environmental conditions. It will allow the user to make the right decision about the duration and intensity of physical activity in certain environmental conditions and choose the appropriate level of physical activity.

PL

W artykule została opisana nowatorska koncepcja i strukturalna organizacjamodułowego systemu do długoterminowego monitorowania, analizy i korekty zintegrowanych wskaźników zdrowotnych różnych grup ludności z uwzględnieniem wpływu czynników środowiskowych i warunków ekstremalnych. Głównymi elementami systemu są:moduł do pomiaru wskaźników fizjologicznych charakteryzujących stan zdrowia człowieka, moduł czujników do selekcji i rejestracji wskaźników środowiskowych, moduł transmisji danych, baza danych, moduł do kompleksowej analizy wskaźników, modułdo prognozowania, zestaw modeli matematycznych, moduł do wyświetlania wyników. Do przewidywania stanu zdrowia wykorzystano metody modelowania matematycznego i statystyki. Aplikacja mobilna umożliwiająca przypisywanie i uwzględnianie zmian efektywności środowiskowej podczas aktywności fizycznej, np. opracowywane są warunki pogodowe podczas, których odbywa się trening, takie jak temperatura, wilgotność względna i prędkość wiatru, a także dystans i czas trwania biegu. Wyniki można uzyskać numerycznie i graficznie na ekranie smartfona. Zaproponowany system pozwala przewidzieć stan funkcjonalny człowieka w różnych warunkach środowiskowych. Pozwoli użytkownikowi na podjęcie właściwej decyzji co do czasu trwania i intensywności aktywności fizycznej w określonych warunkach środowiskowych oraz na wybór odpowiedniego poziomu aktywności fizycznej.

17

The obligations of public entities within the national cybersecurity system

Karpiuk Mirosław

Cybersecurity and Law

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2020

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Vol. 4 (2)

57--72

EN

The lawmakers have imposed a number of obligations on public entities within the national cybersecurity system to ensure that information systems are resilient against actions which compromise the confidentiality, integrity, accessibility, and authenticity of the data being processed in these systems, or the related services provided by such systems. These obligations include incident reporting and handling by the appropriate public entities, and designating contact persons to communicate with national cybersecurity system entities. However, they do not apply to all public bodies – only those specifically named by the lawmakers. An important spectrum of measures in this regard involves public-entity incidents, i.e. occurrences which impair, or might impair, the quality of, or disrupt the performance of, a public function by a public entity. When fulfilling their obligations, it is particularly important for public entities to handle incidents, understood as taking measures to identify, register, analyse, classify, prioritise, contain, and remedy the incidents.

PL

Ustawodawca w ramach krajowego systemu cyberbezpieczeństwa nakłada na poszczególne podmioty wiele obowiązków związanych z zapewnieniem odporności systemów informacyjnych na działania naruszające poufność, integralność, dostępność i autentyczność przetwarzanych danych lub związanych z nimi usług oferowanych przez te systemy. Należą do nich obowiązki w zakresie zgłaszania i obsługi incydentu w podmiocie publicznym, a takżeż obowiązek wyznaczenia osoby odpowiedzialnej za utrzymywanie kontaktów z podmiotami krajowego systemu cyberbezpieczeństwa. Powyższe obowiązki zostały nałożone nie na wszystkie podmioty publiczne, a wyraźnie wskazane przez ustawodawcę. Ważne spektrum działań w tym zakresie dotyczy incydentów występujących w podmiocie publicznym, czyli incydentów, które powodują lub mogą spowodować obniżenie jakości lub przerwanie realizacji zadania publicznego wykonywanego przez podmiot publiczny. Szczególne miejsce wśród obowiązków podmiotów publicznych zajmuje obsługa incydentów rozumiana jako czynności umożliwiające wykrywanie, rejestrowanie, analizowanie, klasyfikowanie, priorytetyzacja, podejmowanie działań naprawczych i ograniczenie skutków incydentu.

18

Crash data reporting systems in Fourteen Arab countries: challenges and improvement

Abounoas Zahira, Raphael Wassim, Badr Yarob, Faddoul Rafic, Guillaume Anne

Archives of Transport

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2020

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Vol. 56, iss. 4

73--88

EN

Traffic crash fatalities and serious injuries still represent a big burden for most Arab countries because the actual policies, strategies, and interventions are based on poorly collected data. Through this paper, we assessed the crash data reporting systems in Fourteen Arab countries via a survey conducted to identify the fundamental dysfunctions at the management and data collection levels. Then, to address some of the dataset problems, we had applied data mining technics to select a minimum of variables (crash, vehicle, and road user) that should be collected for a better understanding of crash circumstances. For this raison, three methods of selection (correlation, information gain, and gain ratio) and seven classifiers (naive Bayes, nearest neighbour, random forest, random tree, J48, reduced error pruning tree, and bagging) were tested and compared to identify the variables that affect significantly the crashes severity. Decision trees family of classifiers showed the best performance based on the analysis of the area under the curve. The explanatory variables obtained from the data mining process were combined with other descriptive variables to maintain traceability. As a result, we produced hybrid lists of variables for the crash, vehicle, and road user, each contains 25 variables. Finally, in order to propose a cost-effective solution to switch from manual to electronic data collection, we got inspired by a tool used to track animals to create and customize a unified e-form for handheld devices, in order to ensure easy entering of the harmonized data for the entire region based on our selected lists of variables. The tool verified the countries requirements especially by enabling data collection and transfer with and without the internet, and by allowing data analysis thought its built-in Geographic Information System (GIS) capabilities.

19

Data Quality Model-based Testing of Information Systems

Bicevskis Janis, Bicevska Zane, Nikiforova Anastasija, Oditis Ivo

Annals of Computer Science and Information Systems

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2020

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Vol. 21

595--602

EN

This paper proposes a model-based testing approach by offering to use the data quality model (DQ-model) instead of the program's control flow graph as a testing model. The DQ-model contains definitions and conditions for data objects to consider the data object as correct. The study proposes to automatically generate a complete test set (CTS) using a DQ-model that allows all data quality conditions to be tested, resulting in a full coverage of DQ-model. In addition, the possibility to check the conformity of the data to be entered and already stored in the database is ensured. The proposed alternative approach changes the testing process: (1) CTS can be generated prior to software development; (2) CTS contains not only input data, but also database content required for complete testing of the system; (3) CTS generation from DQ-model provides values against which the system can be further tested. If the test results correspond to the values obtained during CTS generation, the system under test shall be considered to have been tested according to DQ-model. Otherwise, the user can verify the cause of the differences that may occur due incorrect software, as well as an inaccurate specification.

20

Architecture of the distributed information system of the Almaty Academgorodok

Temirbekov Nurlan, Baigereyev Dossan, Temirbekov Almas, Smolarz Andrzej

Przegląd Elektrotechniczny

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2019

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R. 95, nr 5

75--78

EN

The paper describes the architecture of an integrated distributed information system, which allows to preserve the result of the intellectual activity of Kazakhstan Engineering Technological University and a number of research institutes, located in the Academgorodok of Almaty, Kazakhstan. A description of the implementation of information system subsystems is presented.

PL

Artykuł opisuje architekturę zintegrowanego rozproszonego systemu informatycznego, który pozwala zachować wyniki działalności Kazachskiego Uniwersytetu Techniczno-Technologicznego oraz szeregu instytutów badawczych, zlokalizowanych w Kampusie Almaty w Kazachstanie. Przedstawiono opis wdrożenia podsystemów systemu informacyjnego.