Quality Innovation Prosperity-Kvalita Inovacia Prosperita最新文献_第7页

Improving Quality of Long-Term Bond Price Prediction Using Artificial Neural Networks 利用人工神经网络提高长期债券价格预测质量

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2021-04-01 DOI: 10.12776/QIP.V25I1.1532

R. Verner, M. Tkáč, M. Tkáč

{"title":"Improving Quality of Long-Term Bond Price Prediction Using Artificial Neural Networks","authors":"R. Verner, M. Tkáč, M. Tkáč","doi":"10.12776/QIP.V25I1.1532","DOIUrl":"https://doi.org/10.12776/QIP.V25I1.1532","url":null,"abstract":"Purpose: The aim of this paper is to propose nonlinear autoregressive neural network which can improve quality of bond price forecasting. Methodology/Approach: Due to the complex nature of market information that influence bonds, artificial intelligence could be accurate, robust and fast choice of bond price prediction method. Findings: Our results have reached a coefficient of determination higher than 95% in the training, validation and testing sets. Moreover, we proposed the nonlinear autoregressive network with external inputs using 50 year interest-rate swaps denominated in EUR and volatility index VIX as two external variables. Research Limitation/Implication: Our sample of daily prices between 4th January 2016 and 13th January 2021 (totally 1,270 trading days) suggest that both Levenberg-Marquardt and Scaled conjugate gradient learning algorithms achieved excellent results. Originality/Value of paper: Despite the fact that both learning algorithms achieved satisfying outcomes, implementation of an independent variable into the autoregressive neural network environment had no significant impact on prediction ability of the model. Category: Research paper","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"48 1","pages":"103-123"},"PeriodicalIF":1.5,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89985603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Wages of Information Technology Professionals - A Czech and Slovak Republic Case 信息技术专业人员的工资——捷克和斯洛伐克共和国的案例

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2021-04-01 DOI: 10.12776/QIP.V25I1.1468

L. Marek, Petr Doucek, Lea Nedomová

{"title":"Wages of Information Technology Professionals - A Czech and Slovak Republic Case","authors":"L. Marek, Petr Doucek, Lea Nedomová","doi":"10.12776/QIP.V25I1.1468","DOIUrl":"https://doi.org/10.12776/QIP.V25I1.1468","url":null,"abstract":"Purpose: The objective of this article is to compare the trend in wages of ICT Professionals in the Czech and Slovak economies during the past two decades. Methodology/Approach: The input data set for ICT Professionals was relatively large over 2.2 million (of which ICT represented over 60 thousand) in the Czech Republic and 1.1 million (of which ICT represented over 24 thousand) in the Slovak Republic. For the purposes of presented analyses, we used basic statistical methods and characteristics. Findings: We can make the following general conclusions based on our analyses: all analyzed wage characteristics increased over time, with the exception of the economic crisis during 2009-2014 when they stagnate. Research Limitation/Implication: Our data include outliers, especially wages above EUR 4,000. However, these wages, which are relatively rare, significantly influence the total volume of wages. Originality/Value of paper: Analysis of our data offers information about development of average real wages in ICT oriented jobs. There can be found analysis of wages in all sectors in literature. Analysis of ICT Professionals wages is rarely published in journals. Category: Research paper","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"19 1","pages":"73-87"},"PeriodicalIF":1.5,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87699608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Memorial: Prof. Ivan Slimák, PhD. 纪念:Ivan教授Slimák，博士。

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2021-04-01 DOI: 10.12776/QIP.V25I1.1541

Kristina Zgodavova

引用次数: 0

Business Process Risk Modelling in Theory and Practice 业务流程风险建模的理论与实践

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2021-03-31 DOI: 10.12776/QIP.V25I1.1551

M. Špaček

{"title":"Business Process Risk Modelling in Theory and Practice","authors":"M. Špaček","doi":"10.12776/QIP.V25I1.1551","DOIUrl":"https://doi.org/10.12776/QIP.V25I1.1551","url":null,"abstract":"Purpose: The purpose of the paper is to introduce SW based decision-making tool that helps managers cope with risks and uncertainties of selected industrial processes. The solution is substantiated by the theoretical background. Methodology/Approach: The research is based on combination of contextual interviews with process management experts and Business Process Modelling Notion (BPMN). The former is aimed at the identification of industrial processes with highest risk exposure the latter is conducive to the design of processes to be subjected to stochastic simulation. Findings: The findings show that the risks and uncertainties in the management of industrial processes can be kept under control when using advanced tools of risk analysis as simulation approaches. The solution proposed comes in handy to risk analysts or process managers. Research Limitation/Implication: The library of process models which were included into stochastic simulation includes selected processes as investments, service providing or economic value-added engineering. Additional processes are being included on ongoing basis. Originality/Value of paper: The paper offers the solution to industrial process risk management which goes far beyond academic sphere and provides industrial practitioners SW tool that facilitates process risk management. Category: Technical paper","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"88 2","pages":"55-72"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72465572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Likelihood-Ratio-Based Multivariate EWMA Control Chart Using Lasso 基于似然比的Lasso多元EWMA控制图研究

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2021-03-31 DOI: 10.12776/QIP.V25I1.1552

Takumi Saruhashi, Masato Ohkubo, Yasushi Nagata

{"title":"Study on Likelihood-Ratio-Based Multivariate EWMA Control Chart Using Lasso","authors":"Takumi Saruhashi, Masato Ohkubo, Yasushi Nagata","doi":"10.12776/QIP.V25I1.1552","DOIUrl":"https://doi.org/10.12776/QIP.V25I1.1552","url":null,"abstract":"Purpose: When applying exponentially weighted moving average (EWMA) multivariate control charts to multivariate statistical process control, in many cases, only some elements of the controlled parameters change. In such situations, control charts applying Lasso are useful. This study proposes a novel multivariate control chart that assumes that only a few elements of the controlled parameters change. Methodology/Approach: We applied Lasso to the conventional likelihood ratiobased EWMA chart; specifically, we considered a multivariate control chart based on a log-likelihood ratio with sparse estimators of the mean vector and variance-covariance matrix. Findings: The results show that 1) it is possible to identify which elements have changed by confirming each sparse estimated parameter, and 2) the proposed procedure outperforms the conventional likelihood ratio-based EWMA chart regardless of the number of parameter elements that change. Research Limitation/Implication: We perform sparse estimation under the assumption that the regularization parameters are known. However, the regularization parameters are often unknown in real life; therefore, it is necessary to discuss how to determine them. Originality/Value of paper: The study provides a natural extension of the conventional likelihood ratio-based EWMA chart to improve interpretability and detection accuracy. Our procedure is expected to solve challenges created by changes in a few elements of the population mean vector and population variance-covariance matrix. Category: Research paper QUALITY INNOVATION PROSPERITY / KVALITA INOVÁCIA PROSPERITA 25/1 – 2021 ISSN 1335-1745 (print) ISSN 1338-984X (online) 4","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"18 1","pages":"3-15"},"PeriodicalIF":1.5,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80356227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Link Between Asset Risk Management and Maintenance Performance: A Study of Industrial Manufacturing Companies 资产风险管理与维修绩效的关系:基于工业制造企业的研究

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2020-11-30 DOI: 10.12776/qip.v24i3.1477

D. Maletič, H. Pačaiová, A. Nagyová, M. Maletič

{"title":"The Link Between Asset Risk Management and Maintenance Performance: A Study of Industrial Manufacturing Companies","authors":"D. Maletič, H. Pačaiová, A. Nagyová, M. Maletič","doi":"10.12776/qip.v24i3.1477","DOIUrl":"https://doi.org/10.12776/qip.v24i3.1477","url":null,"abstract":"Purpose: The purpose of this paper is to examine risk management practices and their impact on performance. Specifically, the study aimed to examine risk management practices as part of physical asset management and their impact on maintenance management and its performance. Methodology/Approach: The empirical data were obtained from 76 manufacturing companies. Partial Least Squares Path Modeling (PLS-PM) was applied to evaluate the measurement and structural model. Findings: The results emphasized the importance of integrating risk management practices into asset management processes in order to improve performance outcomes. Research Limitation/Implication: This study contributes to a better understanding of how companies could achieve higher performance results by implementing risk management practices. The results of this study can help managers identify key asset risk management practices. Despite the important implications that can be derived from this study, further research that would extend the model to include additional performance measures and/or asset management dimensions would be of great importance. Originality/Value of paper: By analyzing the interrelationships between asset risk management practices and their direct and indirect effects on maintenance performance, the study provides important insights for the development of strategies to promote the novel and important discipline of asset management.","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"17 1","pages":"50-69"},"PeriodicalIF":1.5,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81169303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Big Five Personality Traits and Creativity 五大人格特质与创造力

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2020-11-30 DOI: 10.12776/qip.v24i3.1509

M. Jirásek, F. Sudzina

{"title":"Big Five Personality Traits and Creativity","authors":"M. Jirásek, F. Sudzina","doi":"10.12776/qip.v24i3.1509","DOIUrl":"https://doi.org/10.12776/qip.v24i3.1509","url":null,"abstract":"Purpose: Personality traits represent an important driver of creativity. Several studies linked individual personality traits and creativity, yet in most cases, the literature provides contradictory insights. In this study, we quasi-replicate prior studies using a new sample to assess the reliability of previous research. Furthermore, we explore the topic in greater detail, as we also study the relationship of creativity with personality facets, a more fine-grained alternative. Methodology/Approach: The study uses a survey-based sample of students from Denmark. To measure personality traits and facets, we asked respondents to fill 44 items Big Five Personality Inventory. We measured creativity using three items from the HEXACO-60 personality inventory. The data were analyzed using generalized least squares models with gender as a control. Findings: In line with the previous literature, our research showed that Openness to Experience is positively related to creativity. We found similar, yet statistically weaker evidence for the relationship of Extraversion and creativity. In contrast to most of the previous findings, we also reported a negative relationship between Conscientiousness and creativity. Research Limitation/Implication: Our research contributes to the topic of the relationship between personality traits and creativity. Some of the relationships fall into the area where the literature is not coherent. We propose that the explanation may stem from the too broad formulation of personality traits, and we partially show that using personality facets. For this reason, future research needs to go into detail of individual personality traits. Originality/Value of paper: The paper provides further insight into the relationship between personality and creativity.","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"42 1","pages":"90-105"},"PeriodicalIF":1.5,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73262290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Consistency of Pairwise Comparisons and Its Role in Optimal Detection of Customers’ Preferences 两两比较的一致性及其在顾客偏好最优检测中的作用

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2020-11-30 DOI: 10.12776/qip.v24i3.1475

Filip Tošenovský

{"title":"Consistency of Pairwise Comparisons and Its Role in Optimal Detection of Customers’ Preferences","authors":"Filip Tošenovský","doi":"10.12776/qip.v24i3.1475","DOIUrl":"https://doi.org/10.12776/qip.v24i3.1475","url":null,"abstract":"Purpose: This paper analyses a problem that originates in the weighted-average model, a mathematical construct introduced by the theory of multicriteria decision-making that can be used to detect what product a customer desires. The problem occurs because the model needs to know the weight the customer assigns to each product feature, aside from the levels of all the product characteristics, in order to calculate the overall value of the product. And since by one approach the weights can be estimated by optimization, the question arises which optimization criterion to select for the procedure, as different criteria will lead to different weights and thus to different product evaluations. The paper analyses the problem in connection with the so-called consistency of pairwise comparisons, which are utilized in the optimization and describe how much the customer prefers one product feature to another. The analysis shows that the problem of which criterion to use to calculate the weights can be eliminated if the pairwise comparisons are consistent. The analysis is performed within pre-defined criteria and is supplemented with case studies supporting the findings. Methodology/Approach: Linear algebra, optimization techniques, case studies. Findings: The results represent a prescription customers can use if they want to avoid the pitfalls of selecting a specific optimization criterion when informing the product maker about what they want based on the weighted-average model. Research Limitation/Implication: The results are related to a specific decision-making model, although that model is still very general and natural. Originality/Value of paper: The problem of selecting an optimization criterion to determine decision weights is not discussed in the theory.","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"12 1","pages":"37-49"},"PeriodicalIF":1.5,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76455232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How the Knowledge of the Major Researchers Is Forging the Business Strategy Paths: Trends and Forecasts from the State of the Art 主要研究人员的知识如何塑造商业战略路径:最新趋势和预测

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2020-11-30 DOI: 10.12776/qip.v24i3.1404

L. C. Barbosa, Maria Augusta Siqueira Mathias, Gilberto Santos, O. J. de Oliveira

{"title":"How the Knowledge of the Major Researchers Is Forging the Business Strategy Paths: Trends and Forecasts from the State of the Art","authors":"L. C. Barbosa, Maria Augusta Siqueira Mathias, Gilberto Santos, O. J. de Oliveira","doi":"10.12776/qip.v24i3.1404","DOIUrl":"https://doi.org/10.12776/qip.v24i3.1404","url":null,"abstract":"Purpose: Given its large number of publications, the subject “strategy” stands out as an important field of scientific literature with multidisciplinary characteristics, involving the most varied research areas. The aim of this paper is to analyse the state of the art on business strategy, which have enabled the identification of the characteristics of the most influential articles and authors. Methodology/Approach: This article is a literature review based on bibliometric parameters, which the main novelty has been the identification of specific characteristics of the main publications and researchers on business strategy during the peak production period of 1998-2017. Findings: The main contribution of this article is to guide researchers interested in developing studies related to business strategy, highlighting the subject’s chronological evolution and the correlations analyses among publications. Research Limitation/implication: The searches and selection of bibliometric parameters have been limited to two of the most relevant databases (Scopus and Web of Science). Another restriction was that only articles and reviews containing the term “business strategy” in their respective titles were considered. Originality/Value of paper: Although bibliometric studies have already been published in managerial and strategic areas and subareas, the scientific literature still lacks articles with the same level of details and analysis performed in this paper, which portrays the main novelty of this research.","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"43 1","pages":"1-20"},"PeriodicalIF":1.5,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76633123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Social Entrepreneurship as a Tool of Sustainable Development 社会企业家精神是可持续发展的工具

IF 1.5

Quality Innovation Prosperity-Kvalita Inovacia Prosperita Pub Date : 2020-11-30 DOI: 10.12776/qip.v24i3.1463

Jozef Bľanda, N. Urbančíková

{"title":"Social Entrepreneurship as a Tool of Sustainable Development","authors":"Jozef Bľanda, N. Urbančíková","doi":"10.12776/qip.v24i3.1463","DOIUrl":"https://doi.org/10.12776/qip.v24i3.1463","url":null,"abstract":"Purpose: The article deals with the analysis of the perception of social entrepreneurship in Slovakia by social entrepreneurs. The main aim is to identify how social entrepreneurs perceive individual aspects of social entrepreneurship in Slovakia, including the role of social entrepreneurship in sustainable development. Methodology/Approach: The analysis was based on data obtained from a questionnaire survey conducted among social entrepreneurs in Slovakia. The survey was attended by representatives of 35 social enterprises from Slovakia. A seven-point rating of Likert scale used within the questionnaire. The mode, median and interquartile range of answers were used to evaluate the questionnaire. Findings: Social entrepreneurs pointed out that social entrepreneurship is still in development in Slovakia and several obstacles causing this situation. They also agreed that the most important benefit of social entrepreneurship in Slovakia is the effort to solve social problems. The research results show that the priority of social entrepreneurs in Slovakia is not to support sustainable development. Research Limitation/implication: The research was limited by the number of social entrepreneurs who participated in the survey. More than half of social enterprises, registered in Slovakia were not willing to participate in the survey. Originality/Value of paper: The article brings important findings in the field of social entrepreneurship, which are based on the practical experience of social entrepreneurs in Slovakia.","PeriodicalId":44057,"journal":{"name":"Quality Innovation Prosperity-Kvalita Inovacia Prosperita","volume":"1 1","pages":"21-36"},"PeriodicalIF":1.5,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86505256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4