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1.
Sustainability (Switzerland) ; 15(1), 2023.
Article in English | Scopus | ID: covidwho-2245415

ABSTRACT

In this paper we demonstrate a new conceptual framework in the application of multilayer perceptron (MLP) artificial neural networks (ANNs) to bankruptcy risk prediction using different time-delay neural network (TDNN) models to assess Altman's EM Z″-score risk zones of firms for a sample of 100 companies operating in the hotel industry in the Republic of Serbia. Hence, the accuracies of 9580 forecasting ANNs trained for the period 2016 to 2021 are analyzed, and the impact of various input parameters of different ANN models on their forecasting accuracy is investigated, including Altman's bankruptcy risk indicators, market and internal nonfinancial indicators, the lengths of the learning periods of the ANNs and of their input parameters, and the K-means clusters of risk zones. Based on this research, 11 stability indicators (SIs) for the years under analysis are formulated, which represent the generalization capabilities of ANN models, i.e., differences in the generalization errors between the preceding period and the year for which zone assessment is given;these are seen as a consequence of structural changes at the industry level that occurred during the relevant year. SIs are validated through comparison with the relative strength index (RSI) for descriptive indicators of Altman's model, and high correlation is found. Special focus is placed on the identification of the stability in 2020 in order to assess the impact of the COVID-19 crisis during that year. It is established that despite the fact that the development of bankruptcy risk in the hotel industry in the Republic of Serbia is a highly volatile process, the largest changes in the analyzed period occurred in 2020, i.e., the potential applications of ANNs for forecasting zones in 2020 are limited. © 2022 by the authors.

2.
BizInfo ; 13(2):117-123, 2022.
Article in Bosnian | CAB Abstracts | ID: covidwho-2226117

ABSTRACT

The development of domestic tourism is marked as one of the positive changes caused by the COVID-19 virus pandemic. The always popular spa destinations in Serbia are becoming more and more visited. Accordingly, it is necessary to determine which factors lead to the satisfaction or dissatisfaction of domestic guests in hotels. This paper will examine the satisfaction and dissatisfaction of hotel guests who shared their experiences through reviews on the Booking.com platform. The sample consisted of hotel guests in Vrnjacka Banja, because this destination stands out as the most visited during the coronary virus pandemic in Serbia. During August 2021, a total of 533 reviews of domestic tourists were collected, and the analysis of the obtained data was performed with the help of the SPSS 20 social science package and the RapidMiner data mining software. The analysis of the results revealed that a total of 8 factors affected the satisfaction of hotel guests during the corona virus pandemic, while a total of 5 factors influenced the dissatisfaction. The obtained results will help hotel managers in creating adequate strategies to improve those factors that are a source of dissatisfaction of guests such as the service provided, room equipment or additional facilities.

3.
Vojnosanitetski Pregled ; 77(11):1201-1209, 2020.
Article in English | EMBASE | ID: covidwho-1043123

ABSTRACT

Background/Aim. Along with the great impact of 2019 coronavirus disease (COVID-19) on physical health, social functioning, and economy, this public health emergency has significant impact on mental health of people as well. The aim of this study was to assess the impact of outbreak-related information and public trust in the health system and preventive measures during the COVID-19 outbreak in Serbia in 2020 on levels of anxiety and depression in education, army and healthcare professionals. Methods. An anonymous questionnaire was disseminated to skilled professionals working in fields of education, army, and healthcare. The questionnaire included the Beck Anxiety Inventory, Zung Self-Rating Depression Scale, as well as the section assessing the perceived disturbance by the outbreak-related information and the trust of participants in healthcare system and preventive measures proposed by the crisis team. Results. Out of 110 subjects enrolled in this study (mean age 35.25 ± 9.23 years), 59.1% were women. Among healthcare workers, the frequency of perceiving outbreak-related information available in public media as disturbing, as well as the average level of anxiety, were higher compared to the group of army professionals (p < 0.05). Women also perceived outbreak-related information available in public media as disturbing in a higher percentage compared to men (p < 0.01), and had higher levels of anxiety (p = 0.01) and depression (p < 0.05). The lack of public trust was associated with higher levels of depression, and the perception of outbreak-related information as disturbing with higher levels of both anxiety and depression. Conclusion. Significant perception of outbreak-related information as disturbing among healthcare workers, as well as the lack of trust in healthcare system and preventive measures proposed by the crisis team are important factors influencing the mental state. This finding has the guiding purpose for competent institutions to make efforts to increase public trust, as one of the important preventive measures, in order to preserve and improve the mental well-being of the population in outbreak conditions.

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