Search results for " modeling"
showing 10 items of 2411 documents
Information, Communications and Media Technologies for Sustainability: Constructing Data-Driven Policy Narratives
2021
This paper introduces the idea of data-driven narratives to examine how the use of information, communications, and media technologies (ICMTs) impacts the sustainable growth of economies. While ICMTs have regularly been advocated as a policy tool for growth and development, there is a research gap in empirical studies validating how such policies may be effective. This analysis is based on historical panel data from 39 economies across the developed North (19) and developing South (20). The industry-standard Cross-Industry Standard Process for Data Mining (CRISP-DM) methodology was applied to construct narratives that weave extant theories with empirical data. The art of developing data-dri…
Current L2 self-concept of Finnish comprehensive school students : The role of grades, parents, peers, and society
2021
L2 (second/foreign language) motivation research in Finland has been scarce. Furthermore, international motivational research has focused more on ideal and ought-to selves, leaving the current L2 self-concept in the background. In the present study, we attempted to address this gap, exploring what shapes L1 (mother tongue) Finnish students' understanding of themselves as users and learners of L2s. Using structural equation modelling, we studied the relationships between students' (n = 1206) current L2 self-concept and parental encouragement, peer pressure, societal expectations, and grades. We further studied which of these factors are the best predictors of students' current L2 self-concep…
Service Climate and Display of Employees’ Positive Emotions: The Mediating Role of Burnout and Engagement in Services
2011
This article aims to test a model linking service climate to the frequency of expression of positive emotions by frontline employees. We propose that burnout and engagement at work mediate the relationship between service climate and the expression of positive emotions. Service climate impacts negatively on burnout and positively on engagement; in turn, burnout and engagement are significantly related to the frequency of expression of positive emotions. This model was tested both at the individual and work-unit levels. In addition, it was compared with a direct model that proposes an additional direct link from service climate to frontline employees’ positive emotions. Models were tested th…
Badania historyczno-systemowe procesów w wielkich społeczno-terytorialnych systemach: metody modelowania semantycznego w sektorze transportu
2017
Artykuł prezentuje metody modelowania semantycznego procesów zachodzących w sektorze transportu państw członkowskich UE i analizę historyczno-systemową grupy systemów terytorialno-społecznych (STS)w porównywaniu z innymi systemami. Za podstawę przyjęto semantykę opartą na taksonomii transportu kolejowego. Badano zmiany infrastruktury i pracy przewozowej na tle procesów wytwarzania PKB. Analizą objęto retrospektywnie okresy 30-, 20- i 15-letnie. Modelowanie identyfikuje zmiany fazowe w STS, obiektywizuje oceny wpływu czynników geopolitycznych na rozwój i trendy przed- i pokryzysowe.
Analiza procesów transportowych w systemach społeczno - terytorialnych w kontekście zjawiska glokalizacji
2017
W artykule przedstawiono wyniki analizy procesów rozwoju regionalnego sektorów TSL (ST) wielkich systemów społeczno -terytorialnych (STS) w kontekście zjawisk globalizacyjnych i glokalizacyjnych.Analiza klasteryzacji terytorialnej i funkcjonalnej jest oparta o modele korelacyjne dynamiki czasowej i zbieżności strukturalno - funkcjonalnej infrastruktury kolejowej jako bazy ST w skalach czasowych – 150, 50 i 30 lat z oceną kwasi - okresowości i zbieżności na zbiorze 56 państw i wielkich STS – hiper-regionów z najbardziej rozwiniętymi ST. Udowodniono zmienność okresowości cykli zbieżności procesów i możliwość identyfikacji STS jako hiper-regionów transportowych.
Ordered fuzzy rules generation based on incremental dataset
2021
This paper proposes a novel approach for building transparent knowledge-based systems by generating interpretable fuzzy rules that allow for present dependences between quantitative variables by accounting for uncertainty and the dynamics of their values. In the approach, IF-THEN rules are used to show the conditional relationship between the ordered fuzzy numbers, which contain additional information about the tendencies of variables' value changes. This paper elaborates an approach of mining ordered fuzzy rules from numerical data included in an incremental database. This approach develops the ability to record uncertainty and its change in the context of rapidly changing data. In additio…
An urban multi-scale modeling using fuzzy evaluation of accessibility and morphological constraints
2008
International audience; Increasing mobility has contributed since a couple of years to favor urban sprawl. The negative impacts of urban sprawl are well known, in particular the increase of traffic flows and vulnerability of natural resources. Addressing those questions we propose a spatial decision support system based on a multi-scale approach. On the one hand, fractal geometry is used to determine where new urban developments are possible. Here, the central assumption is the fractal nature of urban growth allowing access to various types of amenities: central amenities (retailing, cultural offer...) and peripheral amenities (open landscape). On the other hand, the accessibility to retail…
Explaining the Usage Intentions of Exergames
2014
Different kinds of digital gaming concepts that combine exercise and games, commonly referred to as exergames, have become increasingly common in recent years. These games, which can be used because of both hedonic and utilitarian reasons, have also become a subject of growing interest among academic researchers. However, the factors that explain their usage remain vaguely understood. This study aims to find out what kinds of factors explain the intentions to use exergames as part of one’s exercise. To do this, we first propose a new theoretical model for explaining the usage intentions of exergames and then empirically test this model by analyzing an online survey sample collected from 271…
EntityBot: Actionable Entity Recommendations for Everyday Digital Task
2022
Our everyday digital tasks require access to information from a wide range of applications and systems. Although traditional search systems can help find information, they usually operate within one application (e.g., email client or web browser) and require the user's cognitive effort and attention to formulate proper search queries. In this paper, we demonstrate EntityBot, a system that proactively provides useful and supporting entities across application boundaries without requiring explicit query formulation. Our methodology is to exploit the context from screen frames captured every 2 seconds to recommend relevant entities for the current task. Recommendations are not restricted to on…
¿Por qué los estudiantes de la Universidad Pedagógica ISFODOSU escogen la carrera de Educación?
2020
As part of research aimed at establishing the profiles of students of new entry at ISFODOSU, we include vocational variables to determine the most important motivations for the choice of career of the participants, as well as for the election of this university and opinion on its technological resources. The sample (No. 744) was chosen at random, proportionally among the Enclosures, Careers and Sex strata. First, we validate the FIT-Choice scale with two confirmatory factorial analyses. The 12 motivational factors showed a good level of fit (RMSEA .062; CFI .92 and TLI .901, as well as the 6 perceptual factors (RMSEA .062; CFI .944 and TLI .924). The reliability of the motivational factors …