Given a set of attributed subgraphs known to be from different classes, how can we discover their differences? There are many cases where collections of subgraphs may be contrasted against each other. For example, they may be assigned ground truth labels (spam/not-spam), or it may be desired to directly compare the biological networks of different species or compound networks of different chemi...

The comparison of trends in ischaemic heart disease (IHD) mortality in different social classes is confounded by historical changes in diagnostic techniques and statistical classification, and possibly by different standards of diagnostic accuracy in the different social classes. The problems can be circumvented by taking advantage of the fact that in middle age (45 to 64) the IHD death rate is...

Data from the Oxford healthy life survey were used to explore social class variations in beliefs about the determinants of health, willingness to contemplate behaviour change and experience of lifestyle advice in primary care.While the association between lifestyle factors and health was well-recognized by all social groups, those in social classes 1 and 2 were more likely than others to stress...

OBJECTIVE To identify what features of social media - promotional messaging or peer networks - can increase physical activity. METHOD A 13-week social media-based exercise program was conducted at a large Northeastern university in Philadelphia, PA. In a randomized controlled trial, 217 graduate students from the University were randomized to three conditions: a control condition with a basic...

Massively multiplayer online role-playing games (MMORPGs) are a popular form of entertainment used by millions of gamers worldwide. Potential problems relating to MMORPG play have emerged, particularly in relation to being addicted to playing in such virtual environments. In the present study, factors relating to online gaming addiction and motivations for playing in MMORPGs were examined to es...

E-Learning students can benefit from proper class formation process based on the student needs. In particular, Online Social Networks make available data concerning users’ interactions, as skills and trust relationships, that are behind the dynamics of thematic social network groups, and can be explouted to form e-Learning classes. To this aim, we propose a model based on such information, whic...

This study examines whether there is an association between network social capital and self-rated health after controlling for social support. Moreover, we distinguish between network social capital that emerges from strong ties and weak ties. We used a cross-sectional representative sample of 815 adults from the Belgian population. Social capital is measured with the position generator and per...

There is a perceived dichotomy between evolutionary explanations for behaviour and social or cultural ones. In this essay, I attempt to dissolve this dichotomy by pointing out that organisms are susceptible to social or cultural influence because they have evolved mechanisms that make them so. I review two classes of evolutionary explanation for cultural variation, ‘evoked’ and ‘transmitted’ cu...

In 2008 Amanatidis, Green and Mihail introduced the Joint Degree Matrix (JDM) model to capture the fundamental difference in assortativity of networks in nature studied by the physical and life sciences and social networks studied in the social sciences. In 2014 Czabarka proposed a direct generalization of the JDM model, the Partition Adjacency Matrix (PAM) model. In the PAM model the vertices ...

The bidirectional selection between two classes widely emerges in various social lives, such as commercial trading and mate choosing. Until now, the discussions on bidirectional selection in structured human society are quite limited. We demonstrated theoretically that the rate of successfully matching is affected greatly by individuals' neighborhoods in social networks, regardless of the type ...