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Found 6515 publications

Control of traffic lights in high complexity intersections using hierarchical interpolative fuzzy methods

Csaba Gáspár József Hontvári Tibor Tari Laszlo T. Koczy

Publication Name: IEEE International Conference on Fuzzy Systems

Publication Date: 2006-12-01

Volume: Unknown

Issue: Unknown

Page Range: 1045-1048

Description:

This paper presents an approach for controlling very complex traffic intersections with hierarchical fuzzy rules. Fuzzy variables and rules are defined on a basic and also on a higher level. Simulation of road intersections with several lanes and road railroad intersection are presented. The results of a comparison of conventional cyclically controlled and fuzzy controlled systems will be shown © 2006 IEEE.

Open Access: Yes

DOI: 10.1109/FUZZY.2006.1681839

Experiments with the Discrete Bacterial Memetic Evolutionary Algorithm for Solving the Cumulative Capacitated Vehicle Routing Problem

Péter Földesi B. Tüű-Szabó Laszlo T. Koczy

Publication Name: Studies in Computational Intelligence

Publication Date: 2023-01-01

Volume: 1040

Issue: Unknown

Page Range: 87-92

Description:

In this paper we present our initial experiments with the Discrete Bacterial Memetic Evolutionary Algorithm for solving the Cumulative Capacitated Vehicle Routing Problem. The algorithm was tested on instances proposed in the literature. However our method was able to find the optimal solution for small (around 50 nodes) instances, but its convergence speed is low. In the last section some of our ideas to improve the performance of the algorithm were presented.

Open Access: Yes

DOI: 10.1007/978-3-031-07707-4_11

Health labor force exodus: A systematic review of drivers influencing nurses’ migration intentions from source countries

Judit Petra Koltai Esther Amofa-Adade

Publication Name: Journal of Infrastructure Policy and Development

Publication Date: 2024-01-01

Volume: 8

Issue: 11

Page Range: Unknown

Description:

The global shortage of nurses has resulted in the demand for their services across different jurisdictions causing migration from developing to developed regions. This study aimed to review the literature on drivers of nurses’ migration intentions from source countries and offer future research directions. A search strategy was applied to ScienceDirect, Web of Science, and Scopus academic databases to find literature. The search was limited to peer-reviewed, empirical studies published in English from 2013–2023 resulting in 841 papers. The study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines to conduct a systematic review of 35 studies after thorough inclusion and exclusion criteria. In addition, the VOSviewer software was utilized to map network visualization of keywords, geographic and author cooperation for bibliometric understanding. The findings revealed various socio-economic, organizational, and national factors driving nurses’ migration intentions. However, limited studies have been conducted on family income, organizational culture, leadership style, infrastructure development, social benefits, emergency service delivery, specialized training, and bilateral agreements as potential drivers for informing nurses’ migration intentions. Moreover, a few studies were examined from a theoretical perspective, mainly the push and pull theory of migration. This paper contributes to the health human resources literature and shows the need for future studies to consider the gaps identified in the management and policy direction of nurse labor migration.

Open Access: Yes

DOI: 10.24294/jipd.v8i11.8400

The Impact of the Difficult Economic Situation on the Operation of Slovak Companies in the Shadow of War

József Poór Erika Seres Huszárik Zsuzsanna Tóth Tibor Zsigmond Gábor Szábo-Szentgróti Silvia Tóbiás Kosár

Publication Name: Journal of Ecohumanism

Publication Date: 2024-09-20

Volume: 3

Issue: 7

Page Range: 2213-2230

Description:

Purpose: The purpose of this study is to examine the organizational and human resource (HR) responses to the challenging economic conditions caused by the war and the COVID-19 pandemic. Given the limited evidence available on how organizations adapt to such crises, this research aims to develop a conceptual model and empirically investigate the influence of two specific factors: organizational size and direct economic ties with the Russian and Ukrainian markets.This study employs a mixed-method approach, combining both theoretical and empirical research. A conceptual model was first developed to outline potential organizational reactions to crisis conditions. The empirical part of the study involved data collection from 128 organizations, including companies and institutions, in Slovakia. The analysis was conducted to test two hypotheses regarding how organizational size and economic connections with the Russian and Ukrainian markets affect organizational and HR responses in times of war.The findings of the study indicate that neither organizational size nor direct economic linkages with the Russian and Ukrainian markets significantly influenced the responses of the organizations studied to the economic difficulties caused by the war. This suggests that other factors may play a more critical role in shaping organizational and HR strategies in response to crises.For theory, this study contributes to the existing literature by challenging the assumption that organizational size and direct economic ties to conflict-affected markets are primary determinants of organizational responses to crisis. For practice, the findings suggest that managers and HR professionals need to consider a broader range of factors beyond size and market exposure when developing strategies to cope with economic disruptions caused by global crises.This research is original in its focus on the specific impacts of war and pandemic-induced economic conditions on organizations in Slovakia. The study provides valuable insights into how organizations navigate crises, expanding the understanding of crisis management and organizational adaptability. It adds value by highlighting the need for more comprehensive models that consider a wider array of factors influencing organizational behavior in times of global economic disruption.

Open Access: Yes

DOI: 10.62754/joe.v3i7.4372

Sense of Presence in MaxWhere Virtual Reality

Borbála Berki

Publication Name: 10th IEEE International Conference on Cognitive Infocommunications Coginfocom 2019 Proceedings

Publication Date: 2019-10-01

Volume: Unknown

Issue: Unknown

Page Range: 91-94

Description:

Presence is a psychological phenomenon, the sense of being in a virtual environment. Experiencing presence is not limited to the users of full immersive virtual realities, but it can be experienced also in desktop virtual realities. These VRs visualize the simulated 3D environment on two-dimensional displays. MaxWhere is a desktop virtual environment for education, learning and working. It can be described as a 3D browser because any web-page could be loaded on the predefined SmartBoards of the virtual space. Already many research has been done on the use of this software, but this is the first time when the sense of presence is considered. The study aimed to measure the sense of presence in MaxWhere virtual reality and investigate its relationship with individual navigational experience and prior knowledge of the VR. Navigational experience is how much the user feels natural and automatic the movements in the virtual space. The results showed that better navigational experience correlates with stronger sense of spatial presence. Furthermore, the more experienced users reported higher sense of presence and gave higher rating on experienced realism subscale.

Open Access: Yes

DOI: 10.1109/CogInfoCom47531.2019.9089976

Hardware implementation of fuzzy flip-flops based on łukasiewicz norms

Antonio Hernandez-Zavala László Gál Rita Lovassy Ildar Batyrshin Oscar Camacho Nieto Laszlo T. Koczy

Publication Name: Proceedings of the 9th Wseas International Conference on Applied Computer and Applied Computational Science Acacos 10

Publication Date: 2010-12-01

Volume: Unknown

Issue: Unknown

Page Range: 196-201

Description:

The digital hardware implementation of various fuzzy operations furthermore of fuzzy flip-flops has been the subject of intense study and application. The fuzzy D flip-flop derived from fuzzy J-K one is a single input - single output unit with sigmoid transfer characteristics in some particular cases, proper to use as neuron in a Fuzzy Neural Networks (FNN). In this paper we propose the hardware realization of fuzzy D flip-flops based on Łukasiewicz norms.

Open Access: Yes

DOI: DOI not available

The Impact of Workplace Narratives on Organizational Behaviour – A Systematic Literature Review

László Buics Anikó Makkos Veronika Nagy

Publication Name: International Scientific Business Conference Limen Leadership Innovation Management and Economics Integrated Politics of Research

Publication Date: 2024-01-01

Volume: 2024

Issue: Unknown

Page Range: Unknown

Description:

Narratives and the behaviours they support play a key role in shaping the workplace climate. The positive effects — for example, building team cohesion through leadership narratives — increase employee morale and performance, while the negative effects — for example, caused by ineffective leadership communication — decrease loyalty and work performance. The purpose of this article is to examine the impact of narratives, leadership communication, and communities of practice (CoPs) on organisational climate. The importance of CoPs is highlighted: these formal or informal communities are a breeding ground for organisational innovation and positive behaviours. Trust as a key factor is also examined, as it is particularly important in vertical and horizontal communication. The article applies the PRISMA methodology and the PEO framework to conduct a systematic literature review in the Scopus database to collect data and present the currently available knowledge in the field.

Open Access: Yes

DOI: 10.31410/LIMEN.S.P.2024.1

FinTech Solutions Supporting Sustainable Agriculture - Lessons from Africa: FinTech Solutions Supporting Sustainable Agriculture

Judit Glavanits Tamás Szabó

Publication Name: ACM International Conference Proceeding Series

Publication Date: 2024-09-12

Volume: Unknown

Issue: Unknown

Page Range: 97-103

Description:

This paper explores the transformative role of FinTech solutions in enhancing agricultural productivity and financial inclusion in Sub-Saharan Africa, a region confronted by myriad challenges including fragmented economies, limited capital, climate adversities, and restricted access to financial services. Drawing upon empirical examples, it delves into the potential of crypto-assets and blockchain technology to address these issues, spotlighting the rapid growth of the FinTech industry as a disruptive force capable of revolutionizing financial accessibility for rural communities. Through a comprehensive literature review and case studies, the study highlights innovative FinTech applications, such as mobile money services, which have significantly contributed to financial inclusion among smallholder farmers, facilitating access to savings, loans, and insurance products. The paper presents two pioneering initiatives from Kenya - the blockchain-based insurance model, Etherisc, and Agri-wallet, a digital wallet solution, demonstrating their effectiveness in mitigating risks associated with agriculture and enabling efficient financial transactions; and a central information-operator from Ghana, the Esoko. Furthermore, it identifies existing barriers to the wider adoption of FinTech solutions, including infrastructural deficits, legal uncertainties surrounding smart contracts, and the limited penetration of internet services, underscoring the imperative for enhanced digital infrastructure and regulatory frameworks to maximize the benefits of digital technologies for sustainable agriculture. The findings suggest that, despite challenges, the integration of FinTech in agriculture presents a promising avenue for boosting productivity, ensuring food security, and fostering economic resilience among rural populations in Africa. The paper calls for concerted efforts by stakeholders to address the digital divide and create enabling environments for the deployment of innovative financial technologies, paving the way for a more inclusive and sustainable agricultural sector.

Open Access: Yes

DOI: 10.1145/3670243.3672435

University lecturers' distance learning experiences gained during the COVID-19 pandemic period

Attila Pongracz Balint Lampert Viktória Kövecses-Gősi Ildiko Lorincz

Publication Name: 11th IEEE International Conference on Cognitive Infocommunications Coginfocom 2020 Proceedings

Publication Date: 2020-09-23

Volume: Unknown

Issue: Unknown

Page Range: 325-330

Description:

Semester 2 of the academic year 2019/2020 has brought along a special situation and a variety of new solutions in education throughout the world. The emerging pandemic situation changed the system considerably by impeding both lecturers and students from working and meeting personally. Transition to online, distance education has also presented new challenges to educators, parents, teachers, university lecturers and students, as well as a new path of development. During our research, the experiences and difficulties gained by the members of Apaczai Csere Janos Faculty at Szechenyi István University in the past semester were examined with the help of an online questionnaire. Preliminary results show that the semester of distance learning, despite its difficulties, brought several positive results that enhanced teachers' creativity, pedagogical competencies as well as methodological culture of how the different tools and programs were used.

Open Access: Yes

DOI: 10.1109/CogInfoCom50765.2020.9237890