Search results for "modeling"
showing 10 items of 4489 documents
Agents Displacement in Arbitrary Geometrical Spaces: An Evolutionary Computation based Approach
2015
In many different social contexts, communication allows a collective intelligence to emerge. However, a correct way of exchanging information usually requires determined topological configurations of the agents involved in the process. Such a configuration should take into account several parameters, e.g. agents positioning, their proximity and time efficiency of communication. Our aim is to present an algorithm, based on evolutionary programming, which optimizes agents placement on arbitrarily shaped areas. In order to show its ability to deal with arbitrary bi-dimensional topologies, this algorithm has been tested on a set of differently shaped areas that present concavities, convexities …
Note on the ranking of fuzzy numbers: conditions for a total order relation
1988
It is well-known that the set of fuzzy numbers is not ordered. The author states the conditions which have to be satisfied so that the problem of ranking fuzzy numbers has a solution. In fact, the subset of fuzzy numbers, the elements of which are strictly defined and continuous,is endowed with a total order relation.
Validierung der Messung gesundheitsbezogener Lebensqualität mittels des Short-Form-Health-Survey-12 (SF-12 Version 2.0) in einer deutschen Normstichp…
2020
Validation of the Short-Form-Health-Survey-12 (SF-12 Version 2.0) assessing health-related quality of life in a normative German sample Objectives: Convergent and divergent validation of the Short-Form-Health-Survey-12 assessing HRQoL by analyzing its associations with depressiveness (PHQ-9), social support (OSS-3) and satisfaction with life (SWLS). Methods: A normative German sample (N = 2.524) was analyzed using correlation, regression as well as confirmatory factor analysis and structural equation modelling for ordinal data. Results: The SF-12-scale Mental Health is associated most strongly with the validation criteria (PHQ: r[scales/constructs] = -.73/-.88, OSS-3: r = .35/.55, SWLS: r =…
Intellectual capital, organisational performance and competitive advantage
2019
At present, the role of intellectual capital in organisations is significantly more important than in the past owing to the transition from an economy based on assets to another based on knowledge. The value of intangible assets increases as that of tangible assets decreases; this allows organisations, which prioritise intellectual capital, to produce competitive advantages and achieve better performance. The purpose of this paper is to ascertain if human capital, structural capital and relational capital have a positive influence on the organisational performance of medium-sized firms in the Mexican manufacturing sector. Moreover, it is analysed if competitive advantage mediates the relati…
Talent management and organizational commitment: the partial mediating role of pay satisfaction
2020
PurposeThe purpose of this study is to better understand the role of pay satisfaction and employee perception of talent management in business loyalty strategies, which implies considering both economic and non-economic variables in order to achieve organizational success.Design/methodology/approachResults from a survey of 198 workers were analysed using structural equation modelling (SEM) based on three constructs (confirmatory factor analysis, CFA). The scales used were: employee perception of talent management, pay satisfaction, and organizational commitment. Pay satisfaction acts as a mediating variable in the significant relationship between the perception of talent management and orga…
Engaged managers are not workaholics: Evidence from a longitudinal personcentered analysis
2013
El objetivo de este estudio longitudinal entre directivos finlandeses ( n = 463) fue doble: en primer lugar investigar la relación entre el engagement (E) y la adicción al trabajo (AT) mediante enfoques centrados en la persona y en la variable y, en segundo lugar, explorar si (y cómo) se relacionan las experiencias de engagement y la adicción al trabajo con el cambio de trabajo durante el período de estudio. El análisis centrado en las variables, basado en modelos de ecuaciones estructurales, mostró que los factores latentes del engagement y la adicción al mismo no correlacionan entre sí, lo que sugiere que son constructos independien- tes. Los análisis centrados en la persona indicaron cua…
The effects of organizational and individual factors on occupational accidents
2002
This study examined the relationships between individual psychological, work environment and organizational variables and occupational accidents using structural equation modelling with latent variables. A series of nested explicative models of the relationships between these variables was derived. Data were collected from a wide range of industrial sectors in the Valencia region of Spain using structured interviews. In total, 525 valid questionnaires were completed and these formed the basis for the subsequent analyses. Analysis showed that the model in the series that proposed relationships between all the latent variables provided the best representation of the data. This supported the b…
Sense of coherence and work characteristics: A cross-lagged structural equation model among managers
2004
This study investigated the dominance of predictive relationships between Sense of Coherence (SOC) and work characteristics (organizational climate and job control) in cross-lagged longitudinal data with two measurement points and a time lag of 3 years. The sample consisted of 615 (587 men and 28 women) managers, aged between 27 and 64 years. The cross-lagged longitudinal analysis was done by the use of Structural Equation Modelling (SEM) within the framework by LISREL. The results of the chi-square difference tests indicated that the model where SOC at Time 1 predicted work characteristics at Time 2 better accounted for the data than the competitive models. However, the only significant pa…
Trajectories of Perceived Employability and Their Associations With Well-Being at Work
2014
The first aim of this study was to identify trajectories of perceived employability (PE) with a longitudinal person-centered approach, accounting for both the level of PE and changes in PE. The second aim was to examine how the trajectories were related to well-being at work (i.e., vigor at work, job satisfaction, and job exhaustion) with a variable-centered approach. The data were collected in two Finnish universities (N = 926) during 2008–2010 with three measurement points. Growth Mixture Modeling identified four trajectories, which differed in level, stability, and change in PE across time: we established two trajectories with stable PE (88% of the participants), and two trajectories wi…
Individual Performance in Turbulent Environments: The Role of Organizational Learning Capability and Employee Flexibility
2015
Organizational learning capability (OLC) and employee flexibility help firms navigate the challenges faced by organizations operating in turbulent environments. OLC includes dimensions such as experimentation, risk taking, openness, dialogue, and participative decision making. Employee flexibility is considered a crucial tool for strategic human resource management in tackling environmental turbulence. Accordingly, we pose the following research question: how, and to what extent, is individual performance enhanced by OLC and employee flexibility in turbulent environments? The major impact that environmental turbulence has on change and flexibility requirements suggests that employee flexibi…