One of the cornerstones of expert performance in complex domains is the ability to perceive problem situations in terms of their task-relevant semantic properties. One such class of properties consists of phenomena that are defined in terms of patterns of change over time, i.e., events. A basic pre-requisite for working towards tools to support event recognition is a method for understanding th...

The second decade of life is a transition that poses unique developmental challenges for adolescents, and also for their families and teachers, and how well adolescents negotiate this transition will have important implications for later outcomes across the life course. Coming of age, acquiring the status and trappings of adulthood, unfolds over many years, easily a decade or longer, and so we ...

Collaborative filtering inherently suffers from the data sparsity and cold start problems. Social networks have been shown useful to help alleviate these issues. However, social connections may not be available in many real systems, whereas implicit item relationships are lack of study. In this paper, we propose a novel matrix factorization model by taking into account implicit item relationshi...

OBJECTIVE Social withdrawal is described as the condition in which an individual experiences a desire to make social contact, but is unable to satisfy that desire. It is an important issue for patients with motor neurone disease who are likely to experience severe physical impairment. This study aims to reassess the psychometric and scaling properties of the MND Social Withdrawal Scale (MND-SWS...

This paper proposes a new representation to explain and predict popularity evolution in social media. Recent work on social networks has led to insights about the popularity of a digital item. For example, both the content and the network matters, and gaining early popularity is critical. However, these observations did not paint a full picture of popularity evolution; some open questions inclu...

INTRODUCTION Despite welcomed changes in societal attitudes and practices towards sexual minorities, instances of heteronormativity can still be found within healthcare and research. The Social Interaction Anxiety Scale (SIAS) is a valid and reliable self-rating scale of social anxiety, which includes one item (number 14) with an explicit heteronormative assumption about the respondent's sexual...

Introduction Social physique anxiety (SPA) and Obsessive-compulsive disorders (OCD) are highly correlated and have been considered to be important in understanding eating problems. HoweverSPA and OCD have not been directly studied with respect to eating problems. Thus, the aim of this study was to examine the relationship between SPA and OCD and measures of eating problems.Materials and Methods...

Recently digital items (e.g., avatars) have been widely used by people in virtual communities (VC) and online games. Some Internet companies generate revenue from sales of digital items to their customers. Sales of digital items provide revenue for Internet companies and VC providers who are suffering from lack of a profitable business model. However there is a lack of understanding about peopl...

This study describes the relation between personality items' validities, defined as the items' correlations with acquaintance ratings on the Big 5 personality factors, and other itemmetric properties including ambiguity, syntactic complexity, social desirability, content, and trait indicativity. Five external validity coefficients for each item on the California Psychological Inventory were cor...