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Elderly people and information communication technology (ICT)
Helena Blažun, Kaija Saranto, Sari Rissanen, Samo Bobek, 2013, samostojni znanstveni sestavek ali poglavje v monografski publikaciji

Ključne besede: information communication technology (ICT), online social networks, quality of life, elderly people
Objavljeno: 10.07.2015; Ogledov: 758; Prenosov: 24
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Towards understanding collaborative learning in the social media environment
Mirjana Kljajić Borštnar, 2012, izvirni znanstveni članek

Opis: ‘Social media’, ‘Web 2.0’, ‘collaborative learning’ and user co-creation are just some of the terms that describe changes in the role of information and communication technology (ICT) in business, private life and society. The changing face of ICT has finally brought about the fulfilment of the term ‘Information Society’ and made an important impact on many fields of research, including collaborative learning. The effective use of ICT in support of group collaboration has been researched and discussed. The effectiveness was attributed to systematically organized and facilitated processes. Nevertheless, the results are not always better when group support systems (GSS) are used in comparison to face-to-face work. In contrast to the well-organized GSS-supported learning process, the social media environment is non-structured, rule-free and even chaotic. In this paper, we research the possibilities of eliciting group knowledge in the group-learning process in a social media environment. A total of 24 students assigned into three groups participated in the three-week long study. Their task was to solve a given research topic by solely using an unfamiliar social media environment and to present their findings after three weeks. Students were observed in their natural learning environment (school, home, the Flowr virtual environment), and their attitudes on collaborative work using social media tools were measured with a questionnaire at the end of the study. The results suggest that non-structured social media environment stimulates self-management of the group. Some insights into trust, motivation and conflicts in the collaborative problem solving are discussed.
Ključne besede: social networks, collaborative problem solving, learning
Objavljeno: 10.07.2015; Ogledov: 546; Prenosov: 97
.pdf Celotno besedilo (950,24 KB)
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5.
Students' perception of HR competencies
Vesna Novak, Anja Žnidaršič, Polona Šprajc, 2015, izvirni znanstveni članek

Opis: Background and purpose: Human resource professionalism receives considerable attention in terms of the competence of individual. In this article, we want to bridge the existing competencies of students and the perceived competencies that they assume will be developed and obtained during their studies. The purpose of our paper is a) to present competencies in general, b) to determine the meaning of the development of competencies in the field of higher education, and c) to present the role of competencies in human resource management. The aim of this paper is to examine the human resource competencies among students, and their judgments regarding the competencies they have already received during their studies. Methodology: The questionnaire was distributed to full-time students of the Faculty of Organizational Science, University of Maribor, in such a way that both genders, both undergraduate and graduate studies, and all years of study were represented. We have measured students’ opinions concerning their current and future perceptions about professional competencies in the HR field. Results: Based on the self-assessment of fifteen HR competencies, we used hierarchical clustering performed with Ward's method and standardized variables and got two clusters. A t-test was used according to low or high levels of students’ current competencies. The positive association between satisfaction with study programme and student's opinion on development of competencies during their studies was confirmed with one-tailed Pearson correlation coefficient. Conclusion: The majority of students believe that they possess significant HR competencies. They have expressed a need for further education and training in that field. The students have assessed that the study programme allows them to acquire and develop the competencies for a successful task performance of the HR professional.
Ključne besede: human resources, new trends, social networks
Objavljeno: 04.04.2017; Ogledov: 291; Prenosov: 77
.pdf Celotno besedilo (902,07 KB)
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Win-stay-lose-learn promotes cooperation in the spatial prisoner's dilemma game
Yongkui Liu, Xiaojie Chen, Lin Zhang, Long Wang, Matjaž Perc, 2012, izvirni znanstveni članek

Opis: Holding on to one's strategy is natural and common if the later warrants success and satisfaction. This goes against widespread simulation practices of evolutionary games, where players frequently consider changing their strategy even though their payoffs may be marginally different than those of the other players. Inspired by this observation, we introduce an aspiration-based win-stay-lose-learn strategy updating rule into the spatial prisoner's dilemma game. The rule is simple and intuitive, foreseeing strategy changes only by dissatisfied players, who then attempt to adopt the strategy of one of their nearest neighbors, while the strategies of satisfied players are not subject to change. We find that the proposed winstay-lose-learn rule promotes the evolution of cooperation, and it does so very robustly and independently of the initial conditions. In fact, we show that even a minute initial fraction of cooperators may be sufficient to eventually secure a highly cooperative final state. In addition to extensive simulation results that support our conclusions, we also present results obtained by means of the pair approximation of the studied game. Our findings continue the success story of related winstay strategy updating rules, and by doing so reveal new ways of resolving the prisoner's dilemma.
Ključne besede: social dilemmas, prisoner's dilemma, cooperation, networks
Objavljeno: 19.06.2017; Ogledov: 277; Prenosov: 83
.pdf Celotno besedilo (390,56 KB)
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Effects of adaptive degrees of trust on coevolution of quantum strategies on scale-free networks
Qiang Li, Minyou Chen, Matjaž Perc, Azhar Iqbal, Derek Abbott, 2013, izvirni znanstveni članek

Opis: We study the impact of adaptive degrees of trust on the evolution of cooperation in the quantum prisoner's dilemma game. In addition to the strategies, links between players are also subject to evolution. Starting with a scale-free interaction network, players adjust trust towards their neighbors based on received payoffs. The latter governs the strategy adoption process, while trust governs the rewiring of links. As soon as the degree of trust towards a neighbor drops to zero, the link is rewired to another randomly chosen player within the network. We find that for small temptations to defect cooperators always dominate, while for intermediate and strong temptations a single quantum strategy is able to outperform all other strategies. In general, reciprocal trust remains within close relationships and favors the dominance of a single strategy. Due to coevolution, the power-law degree distributions transform to Poisson distributions.
Ključne besede: evolutionary games, quantum strategies, coevolution, random networks, cooperation, statistical physics of social systems
Objavljeno: 23.06.2017; Ogledov: 150; Prenosov: 78
.pdf Celotno besedilo (669,03 KB)
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8.
Interdependent network reciprocity in evolutionary games
Zhen Wang, Attila Szolnoki, Matjaž Perc, 2013, izvirni znanstveni članek

Opis: Besides the structure of interactions within networks, also the interactions between networks are of the outmost importance. We therefore study the outcome of the public goods game on two interdependent networks that are connected by means of a utility function, which determines how payoffs on both networks jointly influence the success of players in each individual network. We show that an unbiased coupling allows the spontaneous emergence of interdependent network reciprocity, which is capable to maintain healthy levels of public cooperation even in extremely adverse conditions. The mechanism, however, requires simultaneous formation of correlated cooperator clusters on both networks. If this does not emerge or if the coordination process is disturbed, network reciprocity fails, resulting in the total collapse of cooperation. Network interdependence can thus be exploited effectively to promote cooperation past the limits imposed by isolated networks, but only if the coordination between the interdependent networks is not disturbed.
Ključne besede: social dilemma, cooperation, public goods, biased utility, interdependent networks, statistical physics of social systems
Objavljeno: 23.06.2017; Ogledov: 254; Prenosov: 97
.pdf Celotno besedilo (741,04 KB)
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Optimal interdependence between networks for the evolution of cooperation
Zhen Wang, Attila Szolnoki, Matjaž Perc, 2013, izvirni znanstveni članek

Opis: Recent research has identified interactions between networks as crucial for the outcome of evolutionary games taking place on them. While the consensus is that interdependence does promote cooperation by means of organizational complexity and enhanced reciprocity that is out of reach on isolated networks, we here address the question just how much interdependence there should be. Intuitively, one might assume the more the better. However, we show that in fact only an intermediate density of sufficiently strong interactions between networks warrants an optimal resolution of social dilemmas. This is due to an intricate interplay between the heterogeneity that causes an asymmetric strategy flow because of the additional links between the networks, and the independent formation of cooperative patterns on each individual network. Presented results are robust to variations of the strategy updating rule, the topology of interdependent networks, and the governing social dilemma, thus suggesting a high degree of universality.
Ključne besede: social dilemma, cooperation, public goods, biased utility, interdependent networks, statistical physics of social systems
Objavljeno: 23.06.2017; Ogledov: 252; Prenosov: 95
.pdf Celotno besedilo (658,72 KB)
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10.
Spreading of cooperative behaviour across interdependent groups
Luo-Luo Jiang, Matjaž Perc, 2013, izvirni znanstveni članek

Opis: Recent empirical research has shown that links between groups reinforce individuals within groups to adopt cooperative behaviour. Moreover, links between networks may induce cascading failures, competitive percolation, or contribute to efficient transportation. Here we show that there in fact exists an intermediate fraction of links between groups that is optimal for the evolution of cooperation in the prisoners dilemma game. We consider individual groups with regular, random, and scale-free topology, and study their different combinations to reveal that an intermediate interdependence optimally facilitates the spreading of cooperative behaviour between groups. Excessive between-group links simply unify the two groups and make them act as one, while too rare between-group links preclude a useful information flow between the two groups. Interestingly, we find that between-group links are more likely to connect two cooperators than in-group links, thus supporting the conclusion that they are of paramount importance.
Ključne besede: social dilemma, cooperation, public goods, biased utility, interdependent networks, statistical physics of social systems
Objavljeno: 23.06.2017; Ogledov: 518; Prenosov: 92
.pdf Celotno besedilo (665,03 KB)
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