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Segmentation Model with Respect to the Difference in Means

100%
Owczaruk M.
Roczniki Kolegium Analiz Ekonomicznych
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2007
|
vol. 17
285-296
EN
Regression trees approach is used in solving a segmentation problem. Given a population described by independent variables (both continuous and categorical), the continuous dependent variable Y and the two-level categorical variable. The goal is to create such segments of the population, described by the independent variables, that the difference in means distinguishes the segments. The approach differs from classical methods using measures of distance or dissimilarity between two observations from the set.
2

STATUS LINGVISTICKÝCH PREMENNÝCH V METODOLÓGII ANALÝZ TEXTU: (NÁHĽAD DO POMENOVACÍCH DATABÁZ SLOVENČINY)

80%
Sokolová J., Sokol A.
Slavica Slovaca
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2022
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vol. 57
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issue 2
137-148
EN
The subject of the study is a definitional understanding and reflection on the linguistic variables used in the methodology of text analysis. The impetus to write this paper was the definition of the very linguistic entities that text is made out of, and their conceptual and terminological designation from the point of view of the text linguistics. The term variable was chosen for the flexibility of its status and value. Linguistic variables are presented from the perspective of systemic, textual, quantitative and corpus linguistics. Interpretation, which is used in the sense of explanation, is the methodological framework. The definition of the linguistic variables is connected with the operational steps of segmentation, identification and classification. A distinction is made between the linguistic variables with a primarily systemic value, which traditionally show the linguistic (langue) and speech (parole) status, and the linguistic variables with a primarily textual and pragmatic value.
3

TRAJECTORIES IN THE CZECH LABOUR MARKET: THE ROLE OF INFORMATION-PROCESSING SKILLS AND EDUCATION

61%
Koutná M., Janíčko M.
Ekonomický časopis (Journal of Economics)
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2018
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vol. 66
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issue 1
3 – 27
EN
The article assesses the role of information-processing skills and education in people’s labour market trajectories in the Czech Republic in the period of economic recovery from 2011/2012 to 2015. We examine the extent to which literacy and numeracy and formal and informal education influenced changes in the stability of individuals’ employment and their income mobility, incorporating polarisation and segmentation perspectives. The analysis is conducted using a unique combination of Czech PIAAC data and a follow-up survey. The findings show that formal education compared to information-processing skills and further education is by far the most important factor of change in a person’s position in the labour market while the role of skills is only limited.
4
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Costs and benefits resulting from employing foreigners as perceived from the labour market segments perspective (based on the data from Opolskie Voivodeship in Poland)

61%
Kubiciel-Lodzińska S., Maj J., Widera K.
Studia Migracyjne - Przegląd Polonijny
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2020
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vol. 46
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issue 1 (175)
7–28
EN
The purpose of this paper is to demonstrate the employment costs and advantages of employing a foreign labour force. The analysis was made based on the dual labour market theory, whereas employers were divided into employers of foreigners in occupations from the primary and secondary labour market. The analysis was based on 263 semi-structured interviews with employers from the Opolskie Voivodeship (Poland). The respondents were contacted in several ways. Firstly, the CAWI (Computer-Assisted Web Interview) and then PAPI (Paper & Pen Personal Interview) methods were used. The study showed that there is a significant statistical relationship between the labour market segment in which an employer hires a foreign employee, and the advantages gained by the employer. On the other hand, the study demonstrated no statistical relations between the labour market segment and the barriers for employing foreigners and their evaluation made by employers.
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