Latest Communications of International Proceedings articles

 The classical models for construction of investment portfolio do not take into account fundamental values of companies in which one invests. In our approach we extend the portfolio choice by adding this dimension to the classical criteria of profitability and risk. It is assumed that…

The article discusses the features of organizing employment through Internet platforms. The authors identify the main employment models, the advantages and disadvantages of working through platforms and the risks of social pollution of labor relations. To identify the main difficulties faced by employees, the ratings…

The study examines beneficiaries’ expectation in relation to returns generated from pension fund investment in Nigeria. This study investigates the perceptions of contributors of pension fund from the various investments by Pension fund administrators (PFA). The study adopted survey design method using questionnaire to establish…

Processing textual information in large files is time consuming and error prone. Investigating past and historical data concerning geography and economics can be facilitated a lot when the data is stored in a data base or has a proper form. There was a lot of…

The article presents selected decision-making problems concerning the actions of the Police in search of missing persons and proposes methods of machine learning (ML) to support decisions concerning the level of service activities (so-called search level). The problem of determining the scale of operations in…

As the ecological problems are getting worse, the consumers’ thoughts about the environmental protection have led to the diversification in consumer buying approach towards a green lifestyle. Therefore, companies are taking action to develop potential ecological approaches in the green market industry. Green marketing is…

The present paper considers the whole of experience of sociological and socio-philosophical understanding of digital reality phenomenon in the categories of its temporal coordinates. The article discusses the influence of digital technologies’ temporality on their social construction practices, as well as the main parameters of…

In the first part of a paper were detailed study of the discriminant analysis, based on the concept of distance between elements, and on the criterion of proximity constructed on calculating a cosine of the angle between two vectors was conducted. Also, all constructions relying…

Demographic factors, epidemiological factors, and persistently low level of financing for oncological treatment in Poland create opportunities for further development of private health insurance providing services in the event of cancer. The purpose of this paper is to provide an overview of private health insurance…

The aim of the article is to systematize knowledge of key managerial competencies in enterprises 4.0 as well as to learn about opinions on this subject expressed by the management staff from the enterprise sector. The first part of this paper presents considerations about managerial…