Multi-modal Social Networks (MSNs) allow users to form explicit (by adding new friends in their network) or implicit (by similarly co-rating items) social networks. Previous research work was limited either to the prediction of new relationships among users (i.e. Link Prediction problem) or to the prediction of item ratings (i.e. Rating Prediction problem and Item Recommendations). Recent link ...

Loneliness is an indicator of social well-being and pertains to the feeling of missing an intimate relationship (emotional loneliness) or missing a wider social network (social loneliness). The 11-item De Jong Gierveld Loneliness Scale has proved to be a valid and reliable measurement instrument for overall, emotional, and social loneliness, although its length has sometimes rendered it difficu...

Loneliness is an indicator of social well-being and pertains to the feeling of missing an intimate relationship (emotional loneliness) or missing a wider social network (social loneliness). The 11-item De Jong Gierveld Loneliness Scale has proved to be a valid and reliable measurement instrument for overall, emotional, and social loneliness, although its length has sometimes rendered it difficu...

the aim of this study was to compare the satisfaction from body areas and social - physique anxiety in islamic azad university students. for this purpose, 424 athlete and non-athlete undergraduate students completed body areas satisfaction scale (bass) and seven-item social - physique anxiety scale (7-spas). results of multivariate analysis of covariance (mancova) showed that while sport (indiv...

PURPOSE Our study objectives were to (1) determine the prevalence of food insecurity; (2) examine the association between presence and level of food insecurity with other health-related social problems; and (3) assess the predictive values of a two-item food insecurity screen in an urban youth population. METHODS Patients aged 15-25 years completed a Web-based screening tool. Validated questi...

We study a basic auction design problem with online supply. There are two unit-demand bidders and two types of items. The first item type will arrive first for sure, and the second item type may or may not arrive. The auctioneer has to decide the allocation of an item immediately after each item arrives, but is allowed to compute payments after knowing how many items arrived. For this problem w...

In this paper, we design and analyze MC2G (Matrix Completion with 2 Graphs), an algorithm that performs matrix completion in the presence of social item similarity graphs. runs quasilinear time is parameter free. It based on spectral clustering local refinement steps. The expected number sampled entries required for to succeed (i.e., recover clusters graphs complete matrix) matches information-...

Phil Benson, Macquarie University It is often observed that the globalization of social media has opened up new opportunities for informal intercultural communication and foreign language learning. This study aims to go beyond this general observation through a case study that explores how discourse analysis tools might be used to uncover evidence of language and intercultural learning in comme...