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Publications - 6374

Genetic and bacterial memetic programming approaches in hierarchical-interpolative fuzzy system construction

Krisztián Balázs Laszlo T. Koczy

Publication Name: IEEE International Conference on Fuzzy Systems

Publication Date: 2012-10-23

Volume: Unknown

Issue: Unknown

Page Range: Unknown

Description:

As a straightforward continuation of our previous work in this paper new memetic (combined evolutionary and gradient based) methods are proposed for constructing hierarchical-interpolative fuzzy rule bases in the frame of a supervised machine learning system modeling black box systems defined by input-output pairs. In this work the resulting hierarchical rule bases are constructed by using structure building Genetic and Bacterial Memetic Programming Algorithms, thus stochastic evolutionary optimization methods containing deterministic local search steps. Applying hierarchical-interpolative fuzzy rule bases has proved an efficient way of reducing the complexity of knowledge bases, whereas memetic techniques often ensure a relatively fast convergence in the learning process. The literature has highlighted the advantages of memetic methods against pure evolutionary algorithms, thus the combination of hierarchical-interpolative fuzzy rule bases with memetic techniques may form promising hierarchical-interpolative machine learning systems. © 2012 IEEE.

Open Access: Yes

DOI: 10.1109/FUZZ-IEEE.2012.6251218

Improving social life and communication of people with disabilities by using internet facilities

No authors available

Publication Name: CEUR Workshop Proceedings

Publication Date: 2008-12-01

Volume: 415

Issue:

Page Range: Unknown

Description:

This paper presents some European initiatives developed within the Socrates Programme in order to support people with disabilities to use the new technologies. The disadvantages of the existing software designed for people with visual deficiencies together with some criteria that have to be considered in developing virtual learning applications for visually impaired are pointed out. The paper includes a proposal for improvement of the existing software for searching information and communication by people with disabilities, the first version of the FORThSIGHT Programme, elaborated in the framework of one Grundtvig 2 Learning Partnership.

Open Access: No

DOI: DOI not available

Socially inclusive elearning models in companies

No authors available

Publication Name: CEUR Workshop Proceedings

Publication Date: 2008-12-01

Volume: 415

Issue:

Page Range: Unknown

Description:

This paper presents different aspects in developing socially inclusive eLearning models to help people with disabilities improving their work life and facilitating their integration in small and medium sized companies (SMEs) or in other organizations. Two international cooperation that have the main aim of developing and implementing eLearning models for people with disabilities who work for different SMEs and also for groups of SMEs, within virtual communities of practice having similar profiles, are given as an example.

Open Access: No

DOI: DOI not available

Biostimulant properties of cyanobacterial hydrolysate related to polyamines

Guiseppina Pace Pereira Lima Gilda Mógor Átila Francisco Mógor Zoltán Molnár Vince Ördög

Publication Name: Journal of Applied Phycology

Publication Date: 2018-02-01

Volume: 30

Issue: 1

Page Range: 453-460

Description:

Developing new and natural sources of plant growth promotors is essential to ensure the safe and sustainable production of vegetables for human consumption. In recent years, the potential of microalgae as plant biostimulants has been investigated. Arthrospira platensis (Spirulina platensis) biomass is a recognized protein source and its enzymatic hydrolysis contains molecules such as polyamines with potential to promote plant growth. Therefore, the aim of the present study was to investigate the biostimulant properties of hydrolyzed biomass of A. platensis. Bioassays were performed to determine auxin-like and cytokinin-like bioactivity of the hydrolysates. In addition, its effect on lettuce seedling growth was investigated and an organic system field trail performed where yield and free polyamine levels in leaves quantified. The hydrolysates had a cytokinin-like effect in the bioassay. Foliar applications promoted the growth of lettuce seedlings with the 4-h reaction hydrolysate (Sph4) being the most effective at promoting growth and increasing the spermine content by 64% in the lettuce leaves. The polyamine concentration was also compared in non-hydrolyzed A. platensis and Sph4. Hydrolysis resulted in a 34% increase in spermine content. It was concluded that Sph4 is a natural plant growth promoter that can be used as a raw material for biostimulants, and spermine could be an active compound and a metabolic indicator of Sph4 bioactivity.

Open Access: Yes

DOI: 10.1007/s10811-017-1242-z

Comparison of fuzzy rule-based learning and inference systems

No authors available

Publication Name: 9th International Symposium of Hungarian Researchers on Computational Intelligence and Informatics, CINTI 2008

Publication Date: 2008-12-01

Volume:

Issue:

Page Range: 61-75

Description:

In our work we have compared various fuzzy rule based learning and inference systems. The base of the investigations was a modular system that we have implemented in C language. It contains several alternative versions of the two key elements of rule based learning - namely, the optimization algorithm and the inference method - which can be found in the literature. We obtained very different properties when combining these alternatives (changing the modules and connecting them) in all possible ways. The investigations determined the values of the quality measures (complexity and accuracy) of the obtained alternatives both analitically and experimentally where it was possible. Based on these quality measures the combinations have been ordered according to different aspects.

Open Access: No

DOI: DOI not available

ENERGY ANALYSIS OF BUILDINGS WITH LARGE GLAZED SURFACES

T. Horváth Zsolt Szűrös Rita R. Ördög

Publication Name: Iet Conference Proceedings

Publication Date: 2024-01-01

Volume: 2024

Issue: 8

Page Range: 58-64

Description:

Modern architecture has brought new opportunities with the development of industry and technology. Among other things, it has become possible to visually connect the interior and exterior spaces with transparent structures, while providing climatic separation. Since the first modern buildings of Frank Lloyd Wright and Mies van der Rohe, large glazed surface buildings have gained considerable ground. Through the examination of a case study, the research looks for the answer to which of the possible structural solutions for buildings with large surfaces of glass are double or triple glazing, the use of internal or external, or fixed or movable shading is it more beneficial from a building energy point of view, in order to create the comfort of the interior space. The tests were carried out according to the calculations of the 7/2006 TNM decree and also according to the rules of the 9/2023 ÉKM decree, in force from November 2023.

Open Access: Yes

DOI: 10.1049/icp.2024.2682

EXAMINING THE CRITICAL SUCCESS FACTORS FOR THE EFFICIENCY OF GREEN ENERGY PROJECTS

Aknur Zhidebekkyzy Dalia Streimikiene Assel Kozhakhmetova Aizhan K. Anarkhan

Publication Name: Polish Journal of Management Studies

Publication Date: 2024-06-24

Volume: 29

Issue: 2

Page Range: 328-345

Description:

In recent times, there has been a remarkable exponential interest in green energy projects, driven by their potential to significantly decrease greenhouse gas (GHG) emissions and reduce reliance on fossil fuels. However, such high-tech projects' complexity, expensiveness, and high uncertainty level necessitate new ways of increasing efficiency. Therefore, this study, with its clear aim to evaluate the efficiency of green energy projects and identify the critical success factors that can enhance efficiency, remains a compelling and relevant research endeavour. The study employed a rigorous methodology, using multilinear regression analysis to survey 123 project managers from Kazakhstan. This allowed for a comprehensive comparison of the efficiency level of green energy projects and low-tech projects. Research results show that green energy projects exhibit the highest percentage of schedule overrun at 23.9% and cost overrun at 32.7%, indicating substantial delays in project completion and extra expenses in budget compared with low-tech projects. Moreover, green energy projects show the least favourable results (7.3) regarding technological performance. The study reveals the following critical success processes enhancing project efficiency: project planning, scope and cost management, communication, and team management. Based on the processes of the Project Management Body of Knowledge (PMBoK) Guide, an algorithm for managing green energy projects was developed. This tool equips project managers with a process-based map, enabling them to run their projects effectively and enhance their efficiency.

Open Access: Yes

DOI: 10.17512/pjms.2024.29.2.17

Investigation of the spatial concentration of companies in the agglomeration settlements of Győr, 2022

Petra Kecskés Anikó Tompos Patrícia Horváth

Publication Name: Teruleti Statisztika

Publication Date: 2024-01-01

Volume: 64

Issue: 4

Page Range: 515-540

Description:

When making installation decisions, companies take into account a complex system of criteria, which includes the agglomeration area, as well as the presence of companies performing the same or similar activities. The purpose of this research is to examine the spatial distribution of companies established in the agglomeration settlements of Győr. In the course of the analysis, map tests were carried out and a quadratic analysis was prepared. The results of the research show that there is a high degree of spatial concentration of companies in the Győr agglomeration area, and territorial densification can also be seen based on settlement-level indicators.

Open Access: Yes

DOI: 10.15196/TS640405

Developing sustainable logistic strategies in the context of cognitive biases

Peter Foldesi Eszter Sós

Publication Name: Infocommunications Journal

Publication Date: 2024-01-01

Volume: Unknown

Issue: Unknown

Page Range: 110-118

Description:

Cognitive biases often occur even in the decision-making process of highly qualified company managers due to the drive for efficiency and time pressure in operations. At the same time, there are also long-term strategic decisions where time pressure is no longer a factor, and yet cognitive bias appears, which has to be considered properly. In strategic issues, decision- makers tend to see their wishes and desires rather than the objective reality. The proposed system of fuzzy indicators based on technical and objective data supports decision-making between logistics strategies by mitigating cognitive biases, which is extremely important in the logistics field, where the decisions have to be made partly based on subjective, vague, or uncertain parameters.

Open Access: Yes

DOI: 10.36244/ICJ.2024.5.13